Wireline Services Log Interpretation Chart Book - Weatherford ...

Contents 

Chart Page 

Section 1 – General Information 

Borehole Environment and Formation Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 1-1 . . . . . . .2 

Unit Conversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 1-2 . . . . . . . .3 

Logging Tool Response in Sedimentary Minerals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 1-3 . . . . . . . .6 

Section 2 – Temperature and Fluids 

Estimation of Formation Temperature (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-1 . . . . . . .10 

Estimation of Formation Temperature (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-2 . . . . . . .11 

Resistivity vs. Temperature – NaCl Solutions (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-3 . . . . . . .12 

Resistivity vs. Temperature – NaCl Solutions (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-4 . . . . . . .13 

Resistivity of Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-5 . . . . . . .14 

Resistivity of NaCl Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-6 . . . . . . .15 

Estimation of R mf and R mc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GN 2-7 . . . . . . .16 

Porosity and Formation Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-8 . . . . . . .17 

Maximum Tool Length in Deviated Wells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 2-9/ST 2-10 . . .18 

Density and P e Values of Saltwater Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 2-11 . . . . . . .19 

Section 3 – Spontaneous Potential 

SP Bed Thickness Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 3-1 . . . . . . .23 

R we Determination from Static SP (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 3-2 . . . . . . .24 

R we Determination from Static SP (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 3-3 . . . . . . .25 

R w vs. R we (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 3-4 . . . . . . .26 

R w vs. R we (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 3-5 . . . . . . .27 

Section 4 – Natural Radioactivity 

Compact TM Gamma Ray for Borehole Size and Mud Weight Correction . . . . . . . . . . . . . . . . . . . . . . .CM 4-1 . . . . . . .31 

Gamma Ray for Borehole Size and Mud Weight Correction (English) . . . . . . . . . . . . . . . . . . . . . . . . .ST 4-2 . . . . . . .32 

Gamma Ray for Borehole Size and Mud Weight Correction (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . .ST 4-3 . . . . . . .33 

Compact TM Spectral Gamma Ray Borehole Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 4-4 . . . . . . .34 

Compact TM Spectral Gamma Ray KCI Mud Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 4-5 . . . . . . .35 

Spectral Gamma Ray Response Borehole Size and Mud Weight Correction (English) . . . . . . . . . . . .ST 4-6 . . . . . . .36 

Spectral Gamma Ray Response Borehole Size and Mud Weight Correction (Metric) . . . . . . . . . . . . .ST 4-7 . . . . . . .37 

Spectral Gamma Ray Potassium Response Borehole Size and Mud Weight Correction (English) . . .ST 4-8 . . . . . . .38 

Spectral Gamma Ray Potassium Response Borehole Size and Mud Weight Correction (Metric) . . . .ST 4-9 . . . . . . .39 

Spectral Gamma Ray Uranium Response Borehole Size and Mud Weight Correction (English) . . . .ST 4-10 . . . . . . .40 

Spectral Gamma Ray Uranium Response Borehole Size and Mud Weight Correction (Metric) . . . . .ST 4-11 . . . . . . .41 

Spectral Gamma Ray Thorium Response Borehole Size and Mud Weight Correction (English) . . . .ST 4-12 . . . . . . .42 

Spectral Gamma Ray Thorium Response Borehole Size and Mud Weight Correction (Metric) . . . . .ST 4-13 . . . . . . .43 

Spectral Gamma Ray Correction for KCI Mud (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 4-14 . . . . . . .44 

Spectral Gamma Ray Correction for KCI Mud (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 4-15 . . . . . . .45 

Spectral Gamma Ray Potassium Response Correction for KCI Mud (English) . . . . . . . . . . . . . . . . . .ST 4-16 . . . . . . .46 

Spectral Gamma Ray Potassium Response Correction for KCI Mud (Metric) . . . . . . . . . . . . . . . . . . .ST 4-17 . . . . . . .47 

© 2009 Weatherford Ltd. All rights reserved. i

Contents 

Section 5 – Resistivity 

Guidelines for Choosing Induction Logs or Dual Laterologs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 5-1 . . . . . . .51 

Compact TM Array Induction Borehole Correction (Shallow and Medium) . . . . . . . . . . . . . . . . . . . . .CM 5-2, 5-3 . . . . .52 

Compact TM Array Induction Borehole Correction (Deep) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-4 . . . . . . .53 

Compact TM Array Induction Tornado Chart, R xo = 10 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-5 . . . . . . .54 

Compact TM Array Induction Tornado Chart, R xo = 20 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-6 . . . . . . .55 

Compact TM Array Induction Tornado Chart, R xo = 100 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-7 . . . . . . .56 

Compact TM Array Induction Tornado Chart, R xo < R t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-8 . . . . . . .57 

Compact TM Focused Electric Borehole Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-9 . . . . . . .58 

Borehole Correction for Spherically Focused Log (SFL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-10 . . . . . . .60 

Borehole Correction for Simultaneous Triple Induction (STI) Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-11 . . . . . . .61 

Simultaneous Triple Induction (STI) Bed Thickness Correction 

Medium Induction, Bed Thickness 2–4 ft (0.6–1.2 m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-12 . . . . . . .62 


Medium Induction, Bed Thickness > 4 ft (1.2 m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-13 . . . . . . .63 


Deep Induction, Bed Thickness 2–4 ft (0.6–1.2 m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-14 . . . . . . .64 


Deep Induction, Bed Thickness > 4 ft (1.2 m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-15 . . . . . . .65 

Simultaneous Triple Induction (STI) Tornado Chart, R xo /R m = 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-16 . . . . . . .66 

Simultaneous Triple Induction (STI) Tornado Chart, R xo /R m = 100 . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-17 . . . . . . .67 

Compact TM MicroLaterolog Mudcake Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-18 . . . . . .69 

Compact TM Shallow Laterolog Borehole Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-19 . . . . . .70 

Compact TM Deep Laterolog Borehole Correction (Mode A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-20 . . . . . .71 

Compact TM Deep Laterolog Borehole Correction (Mode B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-21 . . . . . .72 

Compact TM Shallow Laterolog Borehole Correction—Shuttle Deployed . . . . . . . . . . . . . . . . . . . . . . .CM 5-22 . . . . . .73 

Compact TM Deep Laterolog Borehole Correction—Shuttle Deployed . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-23 . . . . . .74 

Compact TM Laterolog Tornado Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-24 . . . . . .75 

Compact TM Dual Laterolog Tornado Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-25 . . . . . .76 

Compact TM Laterolog Tornado Chart—Shuttle Deployed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 5-26 . . . . . .77 

R xo from Micro Spherically Focused Log (MSFL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-27 . . . . . . .78 

Mudcake Correction for Micro Spherically Focused Log (MSFL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-28 . . . . . . .79 

Borehole Correction for Dual Laterolog (DLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-29 . . . . . . .80 

R t and R xo from Dual Laterolog (DLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 5-30 . . . . . . .81 

Section 6 – Porosity and Lithology 

Porosity Determination from Sonic Log (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 6-1 . . . . . . .84 

Porosity Determination from Sonic Log (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 6-2 . . . . . . .85 

Compact TM Neutron Porosity Charts—Explanatory Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 

Compact TM Neutron Porosity Environmental Correction Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87 

Compact TM Neutron Porosity Matrix Transforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-3 . . . . . . .88 

Compact TM Neutron Porosity Environmental Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-4 . . . . . . .89 

Compact TM Neutron Porosity Matrix Cross Section Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-5 . . . . . . .90 

Chart 

Page 

ii 

© 2009 Weatherford Ltd. All rights reserved.

Contents 

Chart 

Page 

Compact TM Neutron Porosity Formation Salinity Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-6 . . . . . . .91 

Compact TM Neutron Porosity Cased-Hole Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-7 . . . . . . .92 

Compact TM Lithology-Porosity from Density-P e Crossplot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-8 . . . . . . .93 

Compact TM Lithology-Porosity from Density-Neutron Crossplot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-9 . . . . . . .94 

Compact TM Lithology-Porosity from Density-Neutron Crossplot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-10 . . . . . .95 

Compact TM Porosity and Saturation from Density-Neutron Porosity Plot . . . . . . . . . . . . . . . . . . . . . . .CM 6-11 . . . . . . .96 

Compact TM Lithology-Porosity from Sonic-Neutron Crossplot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 6-12 . . . . . .97 

Compensated Neutron Lithology Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-13 . . . . . . .99 

Compensated Neutron Borehole Size and Salinity Correction (6- and 8-in. bh) (English) . . . . . . . . .ST 6-14 . . . . . .100 

Compensated Neutron Borehole Size and Salinity Correction (10- and 12-in. bh) (English) . . . . . . .ST 6-15 . . . . . .101 

Compensated Neutron Borehole Size and Salinity Correction (14- and 16-in. bh) (English) . . . . . . .ST 6-16 . . . . . .102 

Compensated Neutron Borehole Size and Salinity Correction (150- and 200-mm bh) (Metric) . . . . .ST 6-17 . . . . . .103 



Compensated Neutron Standoff Correction (6- and 8-in. bh) (English) . . . . . . . . . . . . . . . . . . . . . . . .ST 6-20 . . . . . .106 

Compensated Neutron Standoff Correction (10- and 12-in. bh) (English) . . . . . . . . . . . . . . . . . . . . . .ST 6-21 . . . . . .107 

Compensated Neutron Standoff Correction (14- and 16-in. bh) (English) . . . . . . . . . . . . . . . . . . . . . .ST 6-22 . . . . . .108 

Compensated Neutron Standoff Correction (150- and 200-mm bh) (Metric) . . . . . . . . . . . . . . . . . . . .ST 6-23 . . . . . .109 



Compensated Neutron Formation Salinity Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-26 . . . . . .112 

Compensated Neutron Mud Weight Correction for Calcite Mud (English and Metric) . . . . . . . . . . . . .ST 6-27 . . . . . .113 

Compensated Neutron Mud Weight Correction for Barite Mud (English and Metric) . . . . . . . . . . . . .ST 6-28 . . . . . .114 

Compensated Neutron Mud Weight Correction for Hematite Mud (English and Metric) . . . . . . . . . . .ST 6-29 . . . . . .115 

Compensated Neutron Mudcake Correction for Calcite Mud (English and Metric) . . . . . . . . . . . . . . .ST 6-30 . . . . . .116 

Compensated Neutron Mudcake Correction for Barite Mud (English and Metric) . . . . . . . . . . . . . . . .ST 6-31 . . . . . .117 

Compensated Neutron Mudcake Correction for Hematite Mud (English and Metric) . . . . . . . . . . . . .ST 6-32 . . . . . .118 

Compensated Neutron Formation Matrix Capture Cross Section Correction . . . . . . . . . . . . . . . . . . .ST 6-33 . . . . . .119 

Compensated Neutron Temperature Correction (English and Metric) . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-34 . . . . . .120 

Compensated Neutron Pressure Correction (English and Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-35 . . . . . .121 

Spectral P e Density (SPeD) Photoelectric Correction for Borehole Size . . . . . . . . . . . . . . . . . . . . . .ST 6-36 . . . . . .122 

Porosity and Lithology from Spectral P e Density (SPeD) Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-37 . . . . . .123 

Apparent Matrix Volumetric Photoelectric Factor Spectral P e Density (SPeD) Log . . . . . . . . . . . . . . .ST 6-38 . . . . . .124 

Porosity and Lithology from Compensated Neutron and 

Spectral P e Density (SPeD) Log—Fresh Mud System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-39 . . . . . .125 

Porosity and Lithology from Compensated Neutron and 

Spectral P e Density (SPeD) Log—Salt Mud System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 6-40 . . . . . .126 

Porosity and Lithology from Compensated Neutron and Sonic Log (English) . . . . . . . . . . . . . . . . . . .ST 6-41 . . . . . .127 

Porosity and Lithology from Compensated Neutron and Sonic Log (Metric) . . . . . . . . . . . . . . . . . . . .GN 6-42 . . . . .128 

Porosity and Lithology from Sonic and Spectral P e Density (SPeD) Log—Fresh Water (Metric) . . . .GN 6-43 . . . . .129 

Porosity and Lithology from Sonic and Spectral P e Density (SPeD) Log—Fresh Water (English) . . .GN 6-44 . . . . .130 

Matrix Identification Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 6-45 . . . . .131 

© 2009 Weatherford Ltd. All rights reserved. iii

Contents 

Chart Page 

Section 7 – Pulsed Neutron 

Determination of Sigma Gas (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 7-1 . . . . . .134 

Determination of Sigma Gas (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 7-2 . . . . . .135 

Determination of Sigma Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 7-3 . . . . . .136 

Neutron Capture Cross Section of Wet Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 7-4 . . . . . .137 

Correction of Sigma Gas for Condensate Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 7-5 . . . . . .138 

Section 8 – Miscellaneous 

Reservoir Permeability Estimate from Log Data—Morris and Biggs Equation . . . . . . . . . . . . . . . . . . .GN 8-1 . . . . . .140 

Reservoir Permeability Estimate from Log Data—Timur Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-2 . . . . . .141 

Conductivity-Derived, Water-Filled Porosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-3 . . . . . .142 

Cement Bond Log Interpretation Chart (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-4 . . . . . .143 

Cement Bond Log Interpretation Chart (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-5 . . . . . .144 

Cement Strength from CBL Amplitude Log—Explanatory Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-6 . . . . . .145 

Cement Strength from CBL Amplitude Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-7 . . . . . .146 

Formation Strength Parameter Equations Used in Well Logging Terms . . . . . . . . . . . . . . . . . . . . . . . .GN 8-8 . . . . . .147 

Formation Strength Parameters (Poisson's Ratio) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-9 . . . . . .148 

Formation Strength Parameters (Shear Modulus and Shear Transit Time) . . . . . . . . . . . . . . . . . . . . .GN 8-10 . . . . .149 

Mineral Identification from Spectral Gamma Ray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-11 . . . . . .150 

Shale Volume from Radioactivity Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GN 8-12 . . . . .151 

Compact TM Curve Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CM 8-13 . . . . .152 

Standard Curve Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST 8-14 . . . . . 166 

iv 


Section 1 

General Information

Borehole Environment and Formation Parameters 

General GN 1-1 

2 


Unit Conversions 

GN 1-2 

General 

Length 

1 inch (in.) . . . . . . . . . . . . . . . . . . . . . . . . . . 2.540 cm 

1 foot (ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.48 cm 

1 meter (m) . . . . . . . . . . . . . . . . . . . . . . . . . 39.37 in. 

1 meter (m) . . . . . . . . . . . . . . . . . . . . . . . . . 3.281 ft 

Oil Gravity in degrees API is computed as: 

141.5 

˚API = - 131.5 

Spec. Grav. @ 60˚F 

Volume 

1 barrel (bbl) of oil . . . . . . . . . . . . . . . . . . . . 42 U.S. gal 

5.6154 ft 3 

158.98 L 

1 U.S. gallon (gal) . . . . . . . . . . . . . . . . . . . . 231.00 in. 3 

0.1337 ft 3 

3.785 L 

1 L (1000 cm 3 ) . . . . . . . . . . . . . . . . . . . . . . 0.03532 ft 3 

0.2642 U.S. gal 

0.001 m 3 

1 acre ft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,758 bbl 

43,560 ft 3 

1233 m 3 

Pressure 

1 atmosphere (atm) . . . . . . . . . . . . . . . . . . . 14.70 psi 

1.0332 kPa 

1 pound per square inch (psi) . . . . . . . . . . . 6.89 kPa 

0.06894 bar 

1 kilogram per square 

centimeter (kg/cm 2 ) . . . . . . . . . . . . . . . . . . . 14.22 psi 

Pressure Gradient 

psi/ft = 0.433 x kPa/m 

= lb/ft 3 /144 

= lb/gal/19.27 

kPa = 0.433 x kPa 

= psi/ft x 0.231 

1 cubic foot (ft 3 ). . . . . . . . . . . . . . . . . . . . . . 7.481 U.S. gal 

28.32 L 

1 imperial gal 

(England, Canada, Australia, etc) . . . . . . . . 1.2009 U.S. gal 

4.546 L 

Temperature Conversions 

˚F = 1.8˚C + 32 

˚C = (˚F - 32)/1.8 x ˚C 

˚R (Rankine) = ˚F + 459.69 

K (kelvin) = ˚C + 273.16 

Mass 

1 grain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0001429 

(or 1/7000 lb) 

0.6480 g 

Concentration 

1 grain/U.S. gal . . . . . . . . . . . . . . . . . . 17.118 ppm 

1 gram/L . . . . . . . . . . . . . . . . . . . . . . . 58.417 grains/gal 

1 pound (lb) . . . . . . . . . . . . . . . . . . . . . . . . . 0.4536 kg 

1 metric ton (1000 kg) . . . . . . . . . . . . . . . . . 2205 lb 

Density, Specific, Gravity, etc. 

1 gram per cubic centimeter (g/cm 3 ). . . . . . 62.43 lb/ft 3 

8.345 lb/gal 

1 U.S. gallon of liquid weighs 

(in lb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.345 multiplied by 

density in g/cm 3 

1 imperial gallon of water 

at 62˚F weighs . . . . . . . . . . . . . . . . . . . . . . . 10 lb 

1 barrel of oil weighs (in lb) . . . . . . . . . . . . . 350 multiplied by 

density of oil in g/cm 3 

© 2009 Weatherford Ltd. All rights reserved. 3



4 



GN 1-2 

General 


Logging Tool Response in Sedimentary Minerals 


6 



GN 1-3 

General 




Name 

Formula 

ρ 

LOG 

∆tc 

∆ts 

Pe 

U GR Σ 

g/cm 3 p.u. µs/ft µs/ft barn/elect barn/cm 3 API units c.u. 

Evaporites 

Halite 

NaCl 

2.04 

-2.5 

67 

116 4.65 

9.49 

— 

762 

Anhydrite 

CaSO 4 

2.98 

-1.5 

50 98 

5.05 

15.05 

— 

12.4 

Gypsum 

CaSO 4 (H 2 O) 2 

2.35 

60+ 

53 

3.99 

9.38 

— 

18.6 

Trona 

Na 2 CO 3 NaHCO 3 H 2 O 

2.09 

40 

65 

0.71 

1.48 

— 

16.9 

Tachydrite 

CaCl 2 (MgCl 2 ) 2 (H 2 O) 12 

1.66 

60+ 

92 

3.84 

6.37 

— 

406 

Sylvite 

KCl 

1.87 

-3.0 

74 140 8.51 15.91 500+ 

561 

Carnalite 

KClMgCl 2 (H 2 O) 6 

1.57 

60+ 

79 

4.09 

6.42 

~ 220 

369 

Langbeinite 

K 2 SO 4 (MgSO 4 ) 2 

2.82 

-1.5 

52 

3.56 

10.04 

~ 290 

24.1 

Polyhalite 

K 2 SO 4 (MgSO 4 ) 2 (CaSO 4 ) 2 (H 2 O) 2 

2.79 

23 

58 

4.32 

12.05 

~ 200 

23.7 

Kainite 

MgSO 4 KCl(H 2 O) 3 

2.13 

60+ 

3.50 

7.46 

~ 245 

196 

Kieserite 

MgSO 4 H 2 O 

2.59 

40 

1.83 

4.74 

— 

14.0 

Epsomite 

MgSO 4 (H 2 O) 7 

1.71 

60+ 

1.15 

1.97 

— 

21.5 

Bischofite 

MgCl 2 (H 2 O) 6 

1.54 

60+ 

100 

2.59 

3.99 

— 

323 

Barite 

BaSO 4 

4.09 

-1.5 

69 

133 

267 

1092 

— 

21.0 

Celestite 

SrSO 4 

3.79 

-1.0 

60 149 

55.2 

209 

— 

22.4 

Sulfates 

Pyrite 

FeS 2 

5.00 

-2.5 

38 

59 

16.96 

84.85 

— 

90.3 

Marcasite 

FeS 2 

4.87 

-2.6 

16.97 

82.64 

— 

88.4 

Pyrrhotite 

Fe 7 S 8 

4.54 

-2.6 

65 

111 

20.55 

93.30 

— 

94.2 

Sphalerite 

ZnS 

3.93 

-2.7 

57 108 

35.93 

141 — 

41 

Chalopyrite 

CuFeS 2 

4.07 

-2.3 

26.72 

109 

— 101 

Galena 

PbS 

6.39 

-2.8 

1631 

10422 — 

13.4 

8 


Section 2 

Temperature and Fluids

Estimation of Formation Temperature 


English 

10 


Estimation of Formation Temperature 

GN 2-2 

General 

Metric 


Resistivity vs. Temperature - NaCl Solutions 


English 

12 


Resistivity vs. Temperature - NaCl Solutions 

GN 2-4 

General 

Metric 


Resistivity of Solutions 


Chart GN 2-6, on the next page, is used to estimate the resistivity of NaCl equivalent 

solutions when the solids concentration is known, and also to convert resistivity from 

one temperature to another. 

For solutions other that NaCl use the multipliers in Chart GN 2-5, on this page, 

to obtain equivalent concentrations. Then: 

14 


Resistivity of NaCl Solutions 

GN 2-6 

General 


Estimation of R mf and R mc 


16 


Porosity and Formation Factor 

GN 2-8 

General 


Maximum Tool Length in Deviated Wells 

Compact TM CM 2-9 

Standard ST 2-10 

18 


Density and P e Values of Saltwater Solutions 

GN 2-11 

General 


Section 3 

Spontaneous Potential

SP Bed Thickness Correction 

Number 

GN 3-1 

General 


R we Determination from Static SP 


English 

24 


R we Determination from Static SP 

GN 3-3 

General 

Metric 


R w vs. R we 

General GN 3-4 Number 

English 

26 


Number 

GN 3-5 

R w vs. R we 

General 

Metric 


Section 4 

Natural Radioactivity

Compact Gamma Ray for Borehole Size and Mud Weight Correction 

CM 4-1 

Compact TM 


Gamma Ray for Borehole Size and Mud Weight Correction 


English 

10 

5 

centered 

G R c or r / G R lo g 

2 

1 

0.5 

Mud16 

lb/gal 

Water 

8. 3 lb/ 

gal 

Air 

0.2 

0.1 

0 2 4 6 8 10 12 14 16 

Borehole Diameter (in.) 

10 

5 

eccentered 

G R c or r / G R lo g 

2 

1 

0.5 

Mud 16 lb/gal 

Water 

8.3 lb/gal 

Air 

0.2 

0.1 

0 2 4 6 8 10 12 14 16 

Borehole Diameter (in.) 

32 


Gamma Ray for Borehole Size and Mud Weight Correction 

ST 4-3 

Standard 

Metric 


Compact Spectral Gamma Ray Borehole Correction 


34 


Compact Spectral Gamma Ray KCI Mud Correction 

CM 4-5 

Compact TM 


Spectral Gamma Ray Response 

Borehole Size and Mud Weight Correction 


English 

36 


Spectral Gamma Ray Response 


ST 4-7 

Standard 

Metric 


Spectral Gamma Ray Potassium Response 



English 

38 


Spectral Gamma Ray Potassium Response 


ST 4-9 

Standard 

Metric 


Spectral Gamma Ray Uranium Response 



English 

40 


Spectral Gamma Ray Uranium Response 


ST 4-11 

Standard 

Metric 


Spectral Gamma Ray Thorium Response 



English 

42 


Spectral Gamma Ray Thorium Response 


ST 4-13 

Standard 

Metric 


Spectral Gamma Ray Correction for KCl Mud 


English 

44 


Spectral Gamma Ray Correction for KCl Mud 

ST 4-15 

Standard 

Metric 


Spectral Gamma Ray Potassium Response Correction for KCl Mud 


English 

46 


Spectral Gamma Ray Potassium Response Correction for KCl Mud 

ST 4-17 

Standard 

Metric 


Section 5 

Resistivity

Guidelines for Choosing Induction Logs or Dual Laterologs 

Number 

GN 5-1 

General 


Compact Array Induction Borehole Correction 


Applicability: Compact series (MAI legacy processing) tools. 



52 


Compact Array Induction Borehole Correction 

CM 5-4 

Compact TM 



Compact Array Induction Tornado Chart 



Invasion Diameter 

54 



CM 5-6 

Compact TM 








56 



CM 5-8 

Compact TM 




Compact Focused Electric Borehole Correction 


58 


Borehole Correction for Spherically Focused Log (SFL) 


Applicability: Standard series (SFL) tools. 

60 


Borehole Correction for Simultaneous Triple Induction (STI) Tool 

ST 5-11 

Standard 

Applicability: Standard series (STI) tools. 



Medium Induction 



Bed thickness 2–4 ft (0.6–1.2 m) 

62 



Medium Induction 

ST 5-13 

Standard 


Bed thickness > 4 ft (1.2 m) 



Deep Induction 



Bed thickness 2–4 ft (0.6–1.2 m) 

64 



Deep Induction 

ST 5-15 

Standard 


Bed thickness > 4 ft (1.2 m) 


Simultaneous Triple Induction (STI) Tornado Chart 

Standard Compact ST 5-16 

Applicability: Standard series (STI and SFL) tools. 

66 


Simultaneous Triple Induction (STI) Tornado Chart 

ST 5-17 

Standard 

Applicability: Standard series (STI and SFL) tools. 


Compact MicroLaterolog Mudcake Correction 

CM 5-18 

Compact TM 


Compact Shallow Laterolog Borehole Correction 


70 


Compact Deep Laterolog Borehole Correction 

CM 5-20 

Compact TM 


Compact 

Compact Deep Laterolog Borehole Correction 

Deep Laterolog Borehole Correction 


Applicability: Compact Series (MDL) tools, operating mode B. 

in. in in. 

R L LD(Corr ) / R LL D 

1.6 

1.4 

1.2 

1.0 

0.8 

Centered 

Borehole Diameter 

in. 

mm 

400 

16 

350 

14 

12 

300 

10 

250 

8 

200 

6 

4 

150 

100 

0.6 

1 10 

100 

1,000 

R LLD / Rm 

10,000 


1.6 

1.4 

1.2 

1.0 

6 

in. 


in. 

mm 

400 

16 

350 

14 

12 

300 

10 

250 

8 

200 

150 

0.8 

0.6 

1 10 

100 

1,000 

R LLD / Rm 

10,000 


1.6 

1.4 

1.2 

1.0 

6 

in. 


in. 

mm 

400 

16 

350 

14 

12 

300 

10 

250 

8 

200 

150 

0.8 

0.6 

1 10 

100 

1,000 

R LLD /Rm 

10,000 

72 


Compact Shallow Laterolog Borehole Correction—Shuttle Deployed 

CM 5-22 

Compact TM 


Compact Deep Laterolog Borehole Correction—Shuttle Deployed 


74 


Compact Laterolog Tornado Chart 

CM 5-24 

Compact TM 


Compact Dual Laterolog Tornado Chart 

Compact Dual Laterolog Tornado Chart 

Compact TM CM 5-25 Number 

100 

80 

60 

50 

40 

30 

20 

20 

R t 

30 

R LLD 100 

1.1 

1.2 

1.3 1.4 1.5 1.6 

50 

R t 

R xo 

30 

70 

40 

50 

60 

120 

100 

1.8 

80 

10 

20 

15 

D (in.) i 

R LLD / R x o 

8 

6 

5 

4 

3 

5 

10 

7 

2 

2 

3 

1.0 

0.8 

0.6 

0.5 

0.4 

0.3 

0.2 

0.4 0.6 0.8 

0.2 

0.4 

1.0 2 3 4 5 10 20 30 40 50 

R LLD /RLLS 

76 


Compact Laterolog Tornado Chart—Shuttle Deployed 

CM 5-26 

Compact TM 


R xo from Micro Spherically Focused Log (MSFL) 


Applicability: Standard series (MSFL) tools. 

78 


Mudcake Correction for Micro Spherically Focused Log (MSFL) 

ST 5-28 

Standard 

Applicability: Standard series (MSFL) tools. 


Borehole Correction for Dual Laterolog (DLL) 


Applicability: Standard series (DLL) tools. 

80 


R t and R xo from Dual Laterolog (DLL) 

ST 5-30 

Standard 

Applicability: Standard series (DLL) tools. 

R LL d - R LLs - R xo 


Section 6 

Porosity and Lithology

Porosity Determination from Sonic Log 


English 

84 


Porosity Determination from Sonic Log 

GN 6-2 

General 

Metric 


Compact Neutron Porosity Charts—Explanatory Note 

Compact TM 

86 


Compact Neutron Porosity Environmental Correction Equations 

Compact TM 


Compact Neutron Porosity Matrix Transforms 


88 


Compact Neutron Porosity Environmental Corrections 

CM 6-4 

Compact TM 


Compact Neutron Porosity Matrix Cross Section Corrections 


90 


Compact Neutron Porosity Formation Salinity Corrections 

CM 6-6 

Compact TM 


Compact Neutron Porosity Cased-Hole Corrections 


92 


Compact Lithology-Porosity from Density-Pe Crossplot 

CM 6-8 

Compact TM 

45 

40 

45 

5 

0 

Salt 

35 

45 

40 

30 

40 

35 

25 

20 

15 

10 

5 

Sandstone 

35 

30 

25 

20 

Dolomite 

30 

25 

20 

15 

10 

Limestone 

0 

15 

5 

10 

0 

5 

0 


Compact Lithology-Porosity from Density-Neutron Crossplot 


94 


Compact Lithology-Porosity from Density-Neutron Crossplot 

CM 6-10 

Compact TM 


Compact Porosity and Saturation from Density-Neutron Porosity Plot 


96 


Compact Lithology-Porosity from Sonic-Neutron Crossplot 

CM 6-12 

Compact TM 


Compensated Neutron Lithology Effect 

ST 6-13 

Standard 

Apparent Limestone Porosity (%) 


Compensated Neutron Borehole Size and Salinity Correction 


English 

100 



ST 6-15 

Standard 

English 




English 

102 



ST 6-17 

Standard 

Metric 




Metric 

104 



ST 6-19 

Standard 

Metric 


Compensated Neutron Standoff Correction 


English 

106 



ST 6-21 

Standard 

English 



Standard ST 6-22 Number 

English 

108 



Number 

ST 6-23 

Standard 

Metric 




Metric 

110 



Number 

ST 6-25 

Standard 

Metric 


Compensated Neutron Formation Salinity Correction 


112 


Compensated Neutron Mud Weight Correction for Calcite Mud 

ST 6-27 

Standard 

English 

Metric 


Compensated Neutron Mud Weight Correction for Barite Mud 


English 

Metric 

114 


Compensated Neutron Mud Weight Correction for Hematite Mud 

ST 6-29 

Standard 

English 

Metric 


Compensated Neutron Mudcake Correction for Calcite Mud 


English 

Metric 

116 


Compensated Neutron Mudcake Correction for Barite Mud 

ST 6-31 

Standard 

English 

Metric 


Compensated Neutron Mudcake Correction for Hematite Mud 


English 

Metric 

6-16 

118 


Compensated Neutron Formation Matrix Capture Cross Section Correction 

Number 

ST 6-33 

Standard 


Compensated Neutron Temperature Correction 


English 

Metric 

120 


Compensated Neutron Pressure Correction 

Number 

ST 6-35 

Standard 

English 

Metric 


Spectral P e Density (SPeD) Photoelectric Correction for Borehole Size 


122 


Porosity 

Porosity And Lithology 

Spectral Litho-Density Log 

Fresh Mud, Liquid Filled Holes 

Porosity and Lithology from Spectral P e Density (SPeD) Log 

Number 

ST 6-37 

Standard 

Fresh mud, liquid filled holes 

1.9 

50 

45 

Bulk Density, ρ b (g/cm 3 ) 

2.0 

2.1 

2.2 

2.3 

2.4 

2.5 

2.6 

2.7 

40 

35 

30 

25 

20 

15 

10 

5 

0 

Sandstone 

45 

40 

35 

30 

25 

20 

15 

10 

Dolomite 

5 

40 

0 

35 

30 

25 

20 

Limestone Salt 

15 

10 

5 

0 

2.8 

5 

10 

2.9 

0 

5 

Anhydrite 

3.0 

0 

0 1 2 3 4 5 

6 

Photoelectric Factor, P e 

(barns/electron) 


Apparent Matrix Volumetric Photoelectric Factor Spectral P e Density 

(SPeD) Log 


124 


Porosity and Lithology from Compensated Neutron 

and Spectral P e Density (SPeD) Log 

ST 6-39 

Standard 


Porosity and Lithology from Compensated Neutron 

and Spectral P e Density (SPeD) Log 


126 


Porosity and Lithology from Compensated Neutron and Sonic Log 

Number 

ST 6-41 

Standard 

English 


Porosity and Lithology from Compensated Neutron and Sonic Log 


Metric 

128 


Porosity and Lithology from Sonic and Spectral P e Density (SPeD) Log 

Number 

GN 6-43 

General 

Metric 


Porosity and Lithology from Sonic and Spectral P e Density (SPeD) Log 


English 

130 


Matrix Identification Plot 

GN 6-45 

General 


Section 7 

Pulsed Neutron

Determination of Sigma Gas 


English 

134 


Determination of Sigma Gas 

GN 7-2 

General 

Metric 


Determination of Sigma Water 


136 


Neutron Capture Cross Section of Wet Gas 

GN 7-4 

General 


Correction of Sigma Gas for Condensate Content 


138 


Section 8 

Miscellaneous

Reservoir Permeability Estimate from Log Data – Morris and Biggs Equation 


140 


Reservoir Permeability Estimate from Log Data – Timur Equation 

GN 8-2 

General 


Conductivity-Derived, Water-Filled Porosity 


142 


Cement Bond Log Interpretation Chart 

GN 8-4 

General 

English 


Cement Bond Log Interpretation Chart 


Metric 

144 


Cement Strength from CBL Amplitude Log–Explanatory Note 

GN 8-6 

General 


Cement Strength from CBL Amplitude Log 

Applicability: 


Compact MSS, centralized, 3-ft (0.91-m) transmitter–receiver spacing 

Casing OD (in.) 

4 1/2 5 1/2 7 7 5/8 9 5/8 10 3/4 13 3/8 

100 

Compressive Strength (psi) 

100 1000 10,000 

0 

1 

2 

A mplitude (mV ) 

A ttenuation ( dB/f t ) 

3 

4 

5 

6 

Casing Thickness 

in. (mm) 

10 

7 

0.5 

(12.7) 

8 

9 

10 

0.4 

(10.2) 

11 

12 

0.3 

(7.6) 

13 

1.0 

14 

15 

16 

17 

18 

0.2 (5.1) 

19 

0.1 

115 

140 

178 194 

244 273 

264 

Casing OD (mm) 

20 

1 10 100 

Compressive Strength (MPa) 

CBL - 3 

146 


Formation Strength Parameter Equations Used in Well Logging Terms 

GN 8-8 

General 


Formation Strength Parameters 


148 


Formation Strength Parameters 

GN 8-10 

General 


Mineral Identification from Spectral Gamma Ray 


150 


Shale Volume from Radioactivity Index 

GN 8-12 

General 


Compact Curve Mnemonics 


152 



CM 8-13 

Compact TM 




154 



CM 8-13 

Compact TM 




156 



CM 8-13 

Compact TM 




158 



CM 8-13 

Compact TM 




160 



CM 8-13 

Compact TM 




162 



CM 8-13 

Compact TM 




164 



CM 8-13 

Compact TM 


Standard Curve Mnemonics 


Curve Mnemonic Curve Description Tool Tool Description 

DT 

Compressional Delta Time 

DTL 

Delta Time Lower 

DTQ 

Delta Time Quality 

DTU 

Delta Time Upper 

ITT 

Integrated TRL Time 

RCDP 

RH Cmpr DOL Phi 

RCLP 

RH Cmpr LS Phi 

RCSP 

RH Cmpr SS Phi 

RPUR 

BCS USER RH Porosity 

SA1 

Amplitude T1 

SA2 

Amplitude T2 

SA3 

Amplitude T3 

SA4 Amplitude T4 BCS Borehole Comp Sonic 

SPDL 

BCS Porosity (DL) 

SPHI 

BCS Porosity (LS) 

SPSS 

BCS Porosity (SS) 

TT1 

Travel Time T1 

TT2 


TT3 


TT4 


UPHS 

BCS USER Porosity 

XY 1 

XY Signature T1 

XY 2 


XY 3 


XY 4 


ABHC 

Annular Volume Tick 

ABHT 

Annular Volume Tab 

ABHV 

Annular Volume 

BHV Total Borehole Volume BHV Borehole Volume Analysis 

BHVC 

Borehole Volume Tick 

BHVT 

Borehole Volume Tabular 

DCAL 

Differential Caliper 

NOMI 

Nominal ID 

NOMO 

Nominal OD 

NOMW 

Nominal Wall 

MINR 

Min Remaining Wall 

MAXR 

Max Remaining Wall 

CAI Casing Analysis Instrument 

DIFR 

Wall Difference 

PERR 

% Remaining Wall 

MNWT 

Min Wall Thickness 

166 



ST 8-14 

Standard 


MXWT 

Max Wall Thickness 

DFWT 

Wall Thickness Differential 

PCWT 

% Wall Thickness Remaining 

APII 

API Tolerance ID 

APIW 

API Tolerance Wall 

TOLW 

12.5% Tolerance Wall 

TOLR 

87.5% Wall Remaining 

BPNO 

Nom Burst Pressure 

BPMX 

Max Burst Pressure 

BPMN Min Burst Pressure CAI Casing Analysis Instrument 

BPGU 

Gulf Burst Pressure 

CPNO 

Nom Collapse Pressure 

CPMX 

Max Collapse Pressure 

CPMN 

Min Collapse Pressure 

PIPD 

Pipe Defect 

CCLF 

Collar 

ODMN 

Minimum OD 

ODMX 

Maximum OD 

ODAV 

Average OD 

CAL3 Aux Caliper CAL Caliper 

CALI X Caliper CAL X Caliper 

CAL2 Y Caliper CAL Y Caliper 

DT 


TT3F 

Travel Time 3 ft 

TT5F 


VDL1 

Variable Density 3 ft 

VDL2 


XY1 

XY Signature 3 ft 

XY2 


CBL 

Cement Bond 

AM3F 

Amplitude 3 ft 

AM5F 


ATTN 

Attenuation 

BI 

Bond Index 

CS 

Compressive Strength 

AM3F 


ATTN 

Attenuation 

BI 

Bond Index 

CS 


CBL Single Receiver Cement Bond 

TT3F 


VDL1 






XY1 XY Signature 3 ft CBL Single Receiver Cement Bond 

CCL Collar Locator CCL Casing Collar Locator (100) 

SFB Collar Locator CCL Multiple Gun Select Fire 

SFG Collar Locator CCL Select Fire Gun 

CGN Collar Locator CCL Shooting CCL 

SWJ Collar Locator CCL Swing Jet 

DPDL 

Density Porosity (DL) 

DPHI 

Density Porosity (LS) 

DPSS 

Density Porosity (SS) 

DRHO Density Correction CDT Compensated Density 

FFDC 

Density Long Space 

NFDC 

Density Short Space 

RHOB 

Bulk Density 

AVGP 

Avg Pad 

AVGT 

Avg Thickness 

ERRB 

CTSB Errors 

MAXP 

Max Pad 

MAXT 

Max Thickness 

MINP 

Min Pad 

MINT 

Min Thickness 

PD1 Pad #1 

PD2 Pad #2 

PD3 Pad #3 

PD4 Pad #4 

PD5 Pad #5 

PD6 Pad #6 

PD7 Pad #7 CES Casing Evaluation Survey 

PD8 Pad #8 

PD9 Pad #9 

PD10 Pad #10 

PD11 Pad #11 

PD12 Pad #12 

PD13 Pad #13 

PD14 Pad #14 

PD15 Pad #15 

PD16 Pad #16 

PR1 

Raw pad #1 counts 

PR2 


PR3 


PR4 


168 



ST 8-14 

Standard 


PR5 


PR6 


PR7 


PR8 


PR9 


PR10 


PR11 Raw pad #11 counts CES Casing Evaluation Survey 

PR12 


PR13 


PR14 


PR15 


PR16 


TRTX 

Thickness Baseline 

FCNL 

Neutron LS CPS 

NCNL 

Neutron SS CPS 

NDBC 

Neutron Porosity HS Cor.(DL) 

NLBC 

Neutron Porosity HS Cor.(LS) 

NPDL 

Neutron Porosity (DL) 

NPHI 

Neutron Porosity (LS) 

NPSS 

Neutron Porosity (SS) 

CNT Compensated Neutron 

NRAT 

Ratio 

NRAW 

Raw Neutron Porosity 

NSBC 

Neutron Porosity HS Cor.(SS) 

RFCN 

Neutron Raw LS CPS 

RNCN 

Neutron Raw SS CPS 

LHRO 

Linear Porosity 

NAPI 

Neutron 

GNT 

Single Det Neutron 

CPGD 

Compress. Goodness 

CPSL 

Compress. Slowness 

DT1 Delta Time 1 




DT5 Delta Time 5 DAR Digital Acoustic Tool 



GM 

Shear Modulus 

GN1 

R1 Gain 

GN2 

R2 Gain 

GN3 

R3 Gain 





GN4 

R4 Gain 

GN5 

R5 Gain 

GN6 

R6 Gain 

GN7 

R7 Gain 

GN8 

R8 Gain 

ITTC 

Cmpr Intgr TT 

ITTS 

Shear Intrg TT 

KM 

Bulk Modulus 

MPWR 

Monopole Power 

MSGD 

Shear Goodness 

MSHS 

Shear Slowness 

MSTT 

Micro Sonic TT 

PHSE 

Phase 

PRAT 

Poisson’s Ratio 

RCDP 


RCLP 

RH Cmpr LS Phi 

RCSP 


RCUP 

RH Cmpr USR Phi 

RSDP 

RH Shear DOL Phi 

RSLP RH Shear LS Phi DAR Digital Acoustic Tool 

RSSP 

RH Shear SS Phi 

RSUP 

RH Shear USR Phi 

SRAT 

Slowness Ratio 

STGD 

Stoneley Goodness 

STSL 

Stoneley Slowness 

TEMP 

Temperature 

TM1 

R1 Delta T 

TM2 

R2 Delta T 

TM3 

R3 Delta T 

TM4 

R4 Delta T 

TM5 

R5 Delta T 

TM6 

R6 Delta T 

TM7 

R7 Delta T 

TM8 

R8 Delta T 

VOLT 

Head Voltage 

WCDP 

Wyllie Cmpr DOL Phi 

WCLP 

Wyllie Cmpr LS Phi 

WCSP 

Wyllie Cmpr SS Phi 

WCUP 

Wyllie Cmpr USR Phi 

WF1 

R1 LIS Waveform 

170 



ST 8-14 

Standard 


WF2 


WF3 


WF4 


WF5 


WF6 


WF7 


WF8 


XTR1 Extra 1 

XTR2 Extra 2 

XTR3 Extra 3 DAR Digital Acoustic Tool 

XY1 

R1 Signature 

XY2 

R2 Signature 

XY3 

R3 Signature 

XY4 

R4 Signature 

XY5 

R5 Signature 

XY6 

R6 Signature 

XY7 

R7 Signature 

XY8 

R8 Signature 

YMEM 

Young’s Modulus 

280D 

280 Hz Gen DAC 

35DC 

35 Hz Gen DAC 

35DF 

35 Hz Gen Delta Frequency 

35DP 

35 Hz Gen Delta Phase 

35GC 

35 Hz Gen Current 

35GV 

35 Hz Gen Voltage 

35IP 

35 Hz Gen Current Phase 

35VP 

35 Hz Gen Volt Phase 

CLLD 

Deep Conductivity 

CLLS 

Shallow Conductivity 

DPER LLd Phase Error DLL Dual Laterolog 

ID00 Deep Current 0 

ID90 Deep Current 90 

ILLD 

Deep Current 

ILLS 

Shallow Current 

IS00 Shallow Current 0 

IS90 Shallow Current 90 

LDRW 

Deep Resistivity Raw 

LSRW 

Shallow Resistivity Raw 

PEVT 

Pit Electrode Volt 

PHER 

LLs Phase Error 





PWRD 

Deep Power 

PWRS 

Shallow Power 

RDPI 

LLd Resistivity I 

RLLD 

Deep Resistivity 

RLLS 

Shallow Resistivity 

VD00 Deep Voltage 0 

VD90 Deep Voltage 90 DLL Dual Laterolog 

VLLD 

Deep Voltage 

VLLS 

Shallow Voltage 

VS00 Shallow Voltage 0 

VS90 Shallow Voltage 90 

DL10 Deep Resistivity X 10 

SL10 Shallow Resistivity X 10 

TEN2 Tension Compression DTD Tension Compression 

AZI1 

Pad1 Azimuth 

AZIM 

Hole Azimuth 

B 

Total H Field 

HDEV 

Hole Deviation 

PEC 

PEC 

FED Four Electrode Dipmeter 

RB 

Rotation 

TOTG 

Total G Field 

ZACC 

Z Acceleration 

GR Gamma Ray GR Gamma Ray 

A1 

T1R1 3’ Amplitude 

A2 

T1R2 3’10 Amplitude 

A3 


A4 


A5 


A6 


A7 


A8 


Attn Attenuation HBC High Resolution Borehole Sonic 

BI 

Bond Index 

CNT1 

T1R1 3’ Counter 

CNT2 

T1R2 3’10 Counter 

CNT3 


CNT4 


CNT5 


CNT6 


CNT7 


172 



ST 8-14 

Standard 


CNT8 


CS 


DT 


DTL 

Lower Delta T Uncompensated 

DTLM 

Lower Micro DT Uncompensated 

DTM 

Min Delta T 

DTQ 

Delta T Quality 

DTU 

Upper Delta T Uncompensated 

DTUM 

Upper Micro DT Uncompensated 

DTX 

Max Delta T 

GN1 

T1R1 3’ Gain 

GN2 

T1R2 3’10 Gain 

GN3 


GN4 


GN5 


GN6 


GN7 


GN8 


ITT 

Integrated TRL Time 

MDT Micro Delta T HBC High Resolution Borehole Sonic 

MDTM 

Min Micro Delta T 

MDTQ 

Micro Delta T Quality 

MDTX 

Max Micro Delta T 

MITT 

Micro ITT 

NOI1 

T1R1 3’ Noise 

NOI2 

T1R2 3’10 Noise 

NOI3 


NOI4 


NOI5 


NOI6 


NOI7 


NOI8 


RCDP 

Sonic Phi (DL-RH) 

RCLPI 

Sonic Phi (LS-RH) 

RCSP 

Sonic Phi (SS-RH) 

RCUP 

Sonic USR RH Phi 

SPDL 

Sonic Phi (DL) 

SPHI 

Sonic Phi (LS) 

SPSS 

Sonic Phi (SS) 

T1MN 

T1R1 3’ TT Min 





T1MX 

T1R1 3’ TT Max 

TEMP 

Temperature 

THR1 

T1R1 3’ Threshold 

THR2 

T1R2 3’10 Threshold 

THR3 


THR4 


THR5 


THR6 


THR7 


THR8 


TM1 

T1R1 3’ TT 

TM2 

T1R2 3’10 TT 

TM3 

T1R3 4’2 TT 

TM4 

T1R4 5’ TT 

TM5 

T2R1 5’ TT 

TM6 

T2R2 4’2 TT 

TM7 

T2R3 3’10 TT 

TM8 

T2R4 3’ TT 

TMX2 

T1R2 3’10 TT Min 

TMX2 

T1R2 3’10 TT Max 

TMX3 T1R3 4’2 TT Max HBC High Resolution Borehole Sonic 

TMX3 


TMX4 


TMX4 


TMX5 


TMX5 


TMX6 


TMX6 


TMX7 


TMX7 


TMX8 


TMX8 


UPHS 

Sonic USR Phi 

VOLT 

Head Voltage 

XY1 

T1R1 3’ XY Sig 

XY2 

T1R2 3’10 XY Sig 

XY3 


XY4 


XY5 


XY6 


174 



ST 8-14 

Standard 


XY7 


XY8 


HBC High Resolution Borehole Sonic 

DDTD Delta Compression HBC Tension Compression 

DXTM 

Z Acceleration Time 

GDV 

GDV Primary 

GI 

Guard Current 

GIQ 

PADV Quadr. 

GTOT 

Total G Field 

GX 

X Axis Accelerometer 

GY 

Y Axis Accelerometer 

GZ 

Z Axis Accelerometer 

HAZI 

Tool Azimuth 

IMG1 

Buttons 

LVDT 

LVDT Drive 

MOTI 

Motor Current 

MOTV 

Motor Voltage 

MTF 

Magnetic Tool Face 

NTEM 

Navigation Temp 

P0MN 

PAD 1 Minimum 

P0MX 

PAD 1 Maximum 

P1B7 

P1B7 Fast 

P1MN PAD 2 Minimum HMI High Resolution Micro Imager 

P1MX 

PAD 2 Maximum 

P1R 

P1R Resistivity 

P2B7 

P2B7 Fast 

P2MN 

PAD 3 Minimum 

P2MX 

PAD 3 Maximum 

P2R 


P3B7 

P3B7 Fast 

P3MN 

PAD 4 Minimum 

P3MX 

PAD 4 Maximum 

P3R 


P4B7 

P4B7 Fast 

P4MN 

PAD 5 Minimum 

P4MX 

PAD 5 Maximum 

P4R 


P5B7 

P5B7 Fast 

P5MN 

PAD 6 Minimum 

P5MX 

PAD 6 Maximum 

P5R 






P6B7 

P6B7 Fast 

P6R 


PAD1 

PAD1 Packed 

PAD2 

PAD2 Packed 

PAD3 

PAD3 Packed 

PAD4 

PAD4 Packed 

PAD5 

PAD5 Packed 

PAD6 

PAD6 Packed 

PADV 

PADV in Phase 

PP 

Pad Presser 

RAD1 Radius Pad 1 






RB 

Relative Bearing 

RHOA 

Rho Average 

SQ 

Seq Count 

UAZI Pad1 Azi No MDEC HMI High Resolution Micro Imager 

UHAZ 

Tool Azi No MDEC 

V5 

5 V Rail 

VI 

Valve Current 

VREF 

Gen DAC VRef 

VRG 

14 V Rail 

VRGN 

14 V Rail Neg 

XTR1 Extra 1 

XTR2 Extra 2 

XTR3 Extra 3 

XTR4 Extra 4 

ZAC5 

Z Acc 0.02 in. 

ZACC 

Z Acceleration Fast 

ZNOW 

Z Acceleration Now 

ZREF 

Gen DAC Zero Ref 

AZI1 

Pad1 Azimuth 

B1 

Button 1 Measurement 

B2 


B3 


B4 


B5 


176 



ST 8-14 

Standard 


B6 


B7 


B8 


B9 


B10 


B11 


B12 


B13 


B14 


B15 


B16 


B17 


B18 


B19 


B20 


B21 


B22 


B23 


B24 Button 24 Measurement HMI High Resolution Micro Imager 

B25 


BTOT 

Total Magnetic Field 

BX 

X Axis Magnetometer 

BY 

Y Axis Magnetometer 

BZ 

Z Axis Magnetometer 

C14 Diameter 1-4 



CTEM 

Cartridge Temperature 

DEVI 

Tool Deviation 

DMAX 

Max Diameter 

DMIN 

Min Diameter 

DMP1 

DM PAD1 Packed 

DMP2 


DMP3 


DMP4 


DMP5 


DMP6 


CILD 

Deep IEL Conductivity 

RILD Deep IEL Resistivity IEL Induction Electric Log 

SN 

Short Normal 





ADTH 

Actual Depth 

LS 

Line Speed 

RSTM Relative System Time LSP Line Speed 

SPMA 

Sorensen Current 

SPVT 

Sorensen Voltage 

MAXI 

Max ID 

MINI 

Min ID 

MAC 

Multi-Arm Caliper 

EDOL 

Epithermal Porosity (DO) 

EFCN 

Epithermal Far CPS 

EFRC 

Epithermal Far Raw CPS 

ELIM 

Epithermal Porosity (LS) 

ENCN 

Epithermal Near CPS 

ENRC 

Epithermal Near Raw CPS 

EPHI 

Epithermal Porosity 

ERAT 

Epithermal Ratio 

ESAN 

Epithermal Porosity (SS) 

GR Gamma Ray MAN Multi Array Neutron 

TDOL 

Thermal Porosity (DO) 

TFCN 

Thermal Far CPS 

TFRC 

Thermal Far Raw CPS 

TLIM 

Thermal Porosity (LS) 

TNCN 

Thermal Near CPS 

TNRC 

Thermal Near Raw CPS 

TPHI 

Thermal Porosity 

TRAT 

Thermal Ratio 

TSAN 

Thermal Porosity (SS) 

ADCZ 

ADC Zero 

HDV Head Voltage MCC MAN Tool Communication Cart 

TEMP 

Temperature 

CPGD 

Compress. Goodness 

CPSL 

Compress. Slowness 

DPWR 

Dipole Power 

DSHG 

Shear Goodness (D) 

DSHS 

Shear Slowness (D) 

DT1 DT1 MDA Monopole Dipole Acoustic 

DT2 

DT2 

DT3 

DT3 

DT4 

DT4 

DT5 

DT5 

DT6 

DT6 

178 



ST 8-14 

Standard 


DT7 

DT7 

GD 

Shear Modulus (D) 

GM 

Shear Modulus (M) 

GN1 

R1 Gain 

GN2 

R2 Gain 

GN3 

R3 Gain 

GN4 

R4 Gain 

GN5 

R5 Gain 

GN6 

R6 Gain 

GN7 

R7 Gain 

GN8 

R8 Gain 

GX 

Shear Modulus (X) 

ITSD 

Shear Integrated TT (D) 

ITSM 

Shear Integrated TT (M) 

ITSX 

Shear Integrated TT (X) 

ITTC 

Cmpr Integrated TT 

KD 

Bulk Modulus (D) 

KM 

Bulk Modulus (M) 

KX 

Bulk Modulus (X) 

MPWR Monopole Power MDA Monopole Dipole Acoustic 

MSGD 

Shear Goodness (M) 

MSHS 

Shear Slowness (M) 

MSTT 

Micro Sonic TT 

PHSE 

Phase 

PRTD 

Poisson’s Ratio (D) 

PRTM 

Poisson’s Ratio (M) 

PRTX 

Poisson’s Ratio (X) 

RCDP 


RCLP 

RH Cmpr LS Phi (M) 

RCSP 


RCUP 

RH Cmpr USR Phi 

RSDD 

RH Shear DOL Phi (D) 

RSDM 

RH Shear DOL Phi (M) 

RSDX 

RH Shear DOL Phi (X) 

RSLD 

RH Shear LS Phi (D) 

RSLM 

RH Shear LS Phi (M) 

RSLX 

RH Shear LS Phi (X) 

RSSD 

RH Shear SS Phi (D) 

RSSM 

RH Shear SS Phi (M) 

RSSX 

RH Shear SS Phi (X) 





RSUD 

RH Shear USR Phi (D) 

RSUM 

RH Shear USR Phi (M) 

RSUX 

RH Shear USR Phi (X) 

SRAT 

Slowness Ratio (M) 

SRTD 

Slowness Ratio (D) 

SRTX 

Slowness Ratio (X) 

STGD 

Stoneley Goodness 

STSL 

Stoneley Slowness 

TEMP 

Temperature 

TM1 

R1 Delta T 

TM2 

R2 Delta T 

TM3 

R3 Delta T 

TM4 

R4 Delta T 

TM5 

R5 Delta T 

TM6 

R6 Delta T 

TM7 

R7 Delta T 

TM8 

R8 Delta T 

VOLT 

Head Voltage 

WCDP 

Wyllie Cmpr DOL Phi 

WCLP 

Wyllie Cmpr LS Phi 

WCSP Wyllie Cmpr SS Phi MDA Monopole Dipole Acoustic 

WCUP 

Wyllie Cmpr USR Phi 

WF1 


WF2 


WF3 


WF4 


WF5 


WF6 


WF7 


WF8 


XSHG 

Shear Goodness (X) 

XSHS 

Shear Slowness (X) 

XTR1 Extra 1 

XTR2 Extra 2 

XTR3 Extra 3 

XY1 

R1 Signature 

XY2 

R2 Signature 

XY3 

R3 Signature 

XY4 

R4 Signature 

XY5 

R5 Signature 

180 



ST 8-14 

Standard 


XY6 

R6 Signature 

XY7 

R7 Signature 

XY8 

R8 Signature 

YMED 

Young’s Modulus (D) 

MDA Monopole Dipole Acoustic 

YMEM 

Young’s Modulus (M) 

YMEX 

Young’s Modulus (X) 

HDV 

Head Voltage 

MEL1 

1.5 Resistivity 

MEL2 

2 Resistivity 

MELI 

MEL-I (STD) 

MV15 

MEL-V 1.5 (STD) 

MEL 

Micro Electric Log 

MV2 

MEL-V 2 (STD) 

TEMP 

Temperature 

ZERO 

ADC Offset 

MOTX Magnetic Orientation MOT Magnetic Orientation Tool 

AVRD 

Avg Radius 

BERR 

Transmission Errors 

DEVI 

Deviation 

DIAV 

Avg Diameter 

DIMN 

Min Diameter 

DIMX 

Max Diameter 

DMNA 

Min Diameter Arm 

DMXA 

Max Diameter Arm 

ECCE 

Eccentering 

ETMP 

External Temperature 

GRAY 

Gray Map 

GSCL 

Gray Scale 

HIGH High Arm MSC Multi Sensor Caliper 

HREF 

Temperature High Ref 

ID1 

Raw Arm Data 

ID2 Arm # 2 

ID3 Arm # 3 

ID4 Arm # 4 

ID5 Arm # 5 

ID6 Arm # 6 

ID7 Arm # 7 

ID8 Arm # 8 

ID9 Arm # 9 

ID10 Arm # 10 

ID11 Arm # 11 





ID12 Arm # 12 

ID13 Arm # 13 

ID14 Arm # 14 

ID15 Arm # 15 

ID16 Arm # 16 

ID17 Arm # 17 

ID18 Arm # 18 

ID19 Arm # 19 

ID20 Arm # 20 

ID21 Arm # 21 

ID22 Arm # 22 

ID23 Arm # 23 

ID24 Arm # 24 

ID25 Arm # 25 

ID26 Arm # 26 

ID27 Arm # 27 

ID28 Arm # 28 

ID29 Arm # 29 

ID30 Arm # 30 

ID31 Arm # 31 MSC Multi Sensor Caliper 

ID32 Arm # 32 

ID33 Arm # 33 

ID34 Arm # 34 

ID35 Arm # 35 

ID36 Arm # 36 

ID37 Arm # 37 

ID38 Arm # 38 

ID39 Arm # 39 

ID40 Arm # 40 

ID41 Arm # 41 

ID42 Arm # 42 

ID43 Arm # 43 

ID44 Arm # 44 

ID45 Arm # 45 

ID46 Arm # 46 

ID47 Arm # 47 

ID48 Arm # 48 

ID49 Arm # 49 

ID50 Arm # 50 

ID51 Arm # 51 

182 



ST 8-14 

Standard 


ID52 Arm # 52 

ID53 Arm # 53 

ID54 Arm # 54 

ID55 Arm # 55 

ID56 Arm # 56 

ID57 Arm # 57 

ID58 Arm # 58 

ID59 Arm # 59 

ID60 Arm # 60 

ID61 Arm # 61 

ID62 Arm # 62 

ID63 Arm # 63 

ID64 Arm # 64 

ID65 Arm # 65 

ID66 Arm # 66 

ID67 Arm # 67 

ID68 Arm # 68 

ID69 Arm # 69 

ID70 Arm # 70 

ID71 Arm # 71 MSC Multi Sensor Caliper 

ID72 Arm # 72 

ID73 Arm # 73 

ID74 Arm # 74 

ID75 Arm # 75 

ID76 Arm # 76 

ID77 Arm # 77 

ID78 Arm # 78 

ID79 Arm # 79 

ID80 Arm # 80 

IDAV 

Avg ID 

IDMN 

Min ID 

IDMX 

Max ID 

ITMP 

Internal Temperature 

LDIA 

Largest Diameter 

LREF 

Temperature Low Ref 

MNRD 

Min Radius 

MXRD 

Max Radius 

OVAL 

Ovality 

R01 Radius 1 

R02 Radius 2 





R03 Radius 3 

R04 Radius 4 

R05 Radius 5 

R06 Radius 6 

R07 Radius 7 

R08 Radius 8 

R09 Radius 9 

R10 Radius 10 

R11 Radius 11 

R12 Radius 12 

R13 Radius 13 

R14 Radius 14 

R15 Radius 15 

R16 Radius 16 

R17 Radius 17 

R18 Radius 18 

R19 Radius 19 

R20 Radius 20 

R21 Radius 21 

R22 Radius 22 MSC Multi Sensor Caliper 

R23 Radius 23 

R24 Radius 24 

R25 Radius 25 

R26 Radius 26 

R27 Radius 27 

R28 Radius 28 

R29 Radius 29 

R30 Radius 30 

R31 Radius 31 

R32 Radius 32 

R33 Radius 33 

R34 Radius 34 

R35 Radius 35 

R36 Radius 36 

R37 Radius 37 

R38 Radius 38 

R39 Radius 39 

R40 Radius 40 

R41 Radius 41 

R42 Radius 42 

184 



ST 8-14 

Standard 


R43 Radius 43 

R44 Radius 44 

R45 Radius 45 

R46 Radius 46 

R47 Radius 47 

R48 Radius 48 

R49 Radius 49 

R50 Radius 50 

R51 Radius 51 

R52 Radius 52 

R53 Radius 53 

R54 Radius 54 

R55 Radius 55 

R56 Radius 56 

R57 Radius 57 

R58 Radius 58 

R59 Radius 59 

R60 Radius 60 

R61 Radius 61 

R62 Radius 62 MSC Multi Sensor Caliper 

R63 Radius 63 

R64 Radius 64 

R65 Radius 65 

R66 Radius 66 

R67 Radius 67 

R68 Radius 68 

R69 Radius 69 

R70 Radius 70 

R71 Radius 71 

R72 Radius 72 

R73 Radius 73 

R74 Radius 74 

R75 Radius 75 

R76 Radius 76 

R77 Radius 77 

R78 Radius 78 

R79 Radius 79 

R80 Radius 80 

RMNA 

Min Radius Arm 

RMXA 

Max Radius Arm 





V5 

Five Volts 

XTR1 Extra 1 

AVRD 

Avg Radius 

BERR 

Transmission Errors 

DEVI 

Deviation 

DIAV 

Avg Diameter 

MSC 

Multi Sensor Caliper 

DIMN 

Min Diameter 

DIMX 

Max Diameter 

DMNA 

Min Diameter Arm 

DMXA 

Max Diameter Arm 

MSFC 

MSF Conductivity 

MSFF 

MSF Resistivity Fltr 

MSFI 

MSFC-I (STD) 

MSFO 

ADC Offset 

MSFR 

MSF Resistivity 

MSFL Micro Spherically Focused Log 

MSFT 

Temperature 

MSFV 

Head Voltage 

MSFV 

MSFC-V (STD) 

MTHK Thickness MTT Magnetic Thickness 

CUT1 

High Pass 200 Hz 

CUT2 


CUT3 


CUT4 High Pass 2000 Hz NSE Noise Tool 

CUT5 


CUT6 


FLAG 

Sample 

LHRO 

Linear Porosity 

NAPI 

Neutron Counts 

NTT Single Detector Neutron 

PFI1 Sensor 1 

PFI2 Sensor 2 

PFI3 Sensor 3 PFI Production Fluid Imaging 

ROT 

Rotation 

SFLG 

Sampling 

RFCW 

Raw Flowmeter 

CWFM 

Flowmeter 

PLT Continuous Flowmeter 

MS Master Sub PLT FlexStak Master Sub 

FDNS 

Fluid Density 

RFDN 

Raw Fluid Density 

PLT 

Fluid Density 

DTMP 

Delta Temperature 

RFCW 

Raw Flowmeter 

PLT Maxim Flowmeter FB/XY/Temp 

186 



ST 8-14 

Standard 


RTMP 

Raw Temperature 

TEMP 

Temperature 

UCLX 

Uncorrected X Caliper 

UCLY Uncorrected Y Caliper PLT Maxim Flowmeter FB/XY/Temp 

CAL2 

Y Caliper 

CALI 

X Caliper 

CWFM 

Flowmeter 

Gas 

Gas 

Oil Oil PLT PL Analysis - Zonal 

WATE 

Water 

DIA Diameter PLT Production Fluid Imaging 

MS 

Master SUB 

MSBV Master SUB BUSV PLT Production Logging Telemetry 

MSHV 

Master SUB HV 

DTMP 

Delta Temperature 

RTMP Raw Temperature PLT Temperature 

TEMP 

Temperature 

SERP 

Enhanced Sigma 

PBGF 

Far Background 

PBGN 

Near Background 

PBSR 

Borehole Ratio 

RBNF 

Ratio Burst Near to Far 

RFIC 

Far Inelastic to Capture 

RNBC 

Burst Near to Capture 

ROFF 

Error in fit for Sigma Far 

ROFN 

Error in fit for Sigma Near 

SGBF 

Far Borehole Sigma 

SGBN 

Near Borehole Sigma 

SGFF Far Formation Sigma PND Pulsed Neutron Decay 

SGFN 

Near Formation Sigma 

SIGD 

Departure Sigma 

SP1 

Spectrum trace 

ACPE 

AACP Error 

AUX2 

Cartridge Temperature 

BGF 

Far Background counts 

BGN 

Near Background counts 

CTSB 

CTSB Errors 

FAR 

Far Counts 

F1 

Far Counts 

FB1 

Bin 7 of 1428 Hz Burst Far 





FB2 


FB3 


FB4 


FB5 


FB6 


FB7 


FB8 


FB9 


FB10 


FB91 


FB92 


FB93 


FB94 


FB95 


FB96 


FS1 

Bin 7 of Servo Burst Far 

FS2 


FS3 


FS4 


FS5 Bin 11 of Servo Burst Far PND Pulsed Neutron Decay 

FS6 


FS7 


FS8 


FS9 


FS10 


FS91 


FS92 


FS93 


FS94 


FS95 


FS96 


HESC High Energy Slope of Capture Spectra 

HVFB 

High Volt FB 

MLR 

Mult-Low Beam Current 

NEAR 

Near Count Rate 

N1 

Near Count Rate 

NB1 

Bin 7 of 1428 Hz Burst Near 

NB2 


NB3 


NB4 


188 



ST 8-14 

Standard 


NB5 


NB6 


NB7 


NB8 


NB9 


NB10 


NB91 

Bin 1of 1428 Hz Burst Near 

NB92 


NB93 


NB94 


NB95 


NB96 


NBPS 

Narrow Burst Pulse Shape 

NPUL # of Narrow Burst firings per half foot 

NS1 

Bin 7 of Servo Burst Near 

NS2 


NS3 


NS4 


NS5 


NS6 Bin 12 of Servo Burst Near PND Pulsed Neutron Decay 

NS7 


NS8 


NS9 


NS10 


NS91 


NS92 


NS93 


NS94 


NS95 


NS96 


PRFS 

Servo Firing Rate 

PWM 

High Volt PWM 

QUAL 

Output Quality 

RATI 

Ratio Capture 

RPC 

Replenish Current 

RPL 

Ripple Avg 

SB11 1428 Hz Spectral Ch 1 Bin 1 
























SB4Q 

Ratio of SB45 to Output Quality 

SIGF 

Sigma Far 

SIGN 

Sigma Near 

SPUL # of Servo Burst Firings per half foot PND Pulsed Neutron Decay 

SRC 

Source Current 

SS11 Servo Spectral Ch 1 Bin 1 



















190 



ST 8-14 

Standard 


SS45 Servo Spectral Ch 4 Bin 5 PND Pulsed Neutron Decay 

POD Pad Orientation Tool POT Pad Orientation Tool 

DQGP 

Delta Quartz Pressure 

QGPR 

Quartz Pressure 

QTMP Quartz Temperature QPG Quartzdyne Pressure 

RQGP 

Raw Quartz Pressure 

RTMP 

Raw Temperature 

ETFI Time From Injection RTE Tracer Ejector 

DT 


INCL 

Inclination 

RelB 


TT3F 


TT4 

Raw TT 

TT5F 


TTC 

Travel Time CAL 

TTS1 

Travel Time SEC1 

TTS2 


TTS3 


TTS4 


TTS5 


TTS6 


TTS7 


TTS8 


VAMP Variable Energy SBT Fast Formation Sector Bond 

VDL1 


VDL2 


XY1 


XY2 


AAVG 

Avg Energy 

AM3F 


AM5F 


AMAX 

Max Energy 

AMIN 

Min Energy 

AMP1 Sector #1 



Amp4 

Raw Amp 










AMPC 

Amplitude Cal 

ATTN 

Attenuation 

SBT Fast Formation Sector Bond 

BI 

Bond Index 

CS 


AAVG 

Avg Energy 

AM3F 


AM5F 


AMAX 

Max Energy 

AMIN 

Min Energy 





Amp4 

Raw Amp 





AMPC 

Amplitude Cal 

ATTN 

Attenuation 

BI Bond Index SBT Sector Bond 

CS 


DT 


INCL 

Inclination 

RelB 


TT3F 


TT4 

Raw Travel Time 

TT5F 


TTC 

Travel Time CAL 

TTS1 


TTS2 


TTS3 


TTS4 


TTS5 


TTS6 


TTS7 


TTS8 


VAMP 

Variable Energy 

192 



ST 8-14 

Standard 


VDL1 


VDL2 


XY1 


SBT 

Sector Bond 

XY2 


ACCX 

X Axis Accelerometer 

ACCY 

Y Axis Accelerometer 

ACCZ 

Z Axis Accelerometer 

ADZ 

A/D Zero 

BHVF 

Borehole Volume Flag 

BHVL 

Borehole Volume 

CAL1 Caliper 1 






CTEM 

Temperature 

DIA1 Diameter 1 



DREF 

Develco 5V Reference 

DXTM Time From Computer SED Six Electrode Dipmeter 

HAZI 

Hole Azimuth 

HDEV 

Hole Deviation 

HV 

Head Volts 

MAGX 

X Axis Magnetometer 

MAGY 

Y Axis Magnetometer 

MAGZ 

Z Axis Magnetometer 

P1AZ 

Pad 1 Azimuth 

PDH1 

Pad 1 High Gain 

PDH2 


PDH3 


PDH4 


PDH5 


PDH6 


PDL1 

Pad 1 Low Gain 

PDL2 


PDL3 


PDL4 


PDL5 






PDL6 


PDLV 

Pad Voltage 

PP 

Pad Pressure 

ROT Rotation SED Six Electrode Dipmeter 

TOTG 

Total G Field 

TOTH 

Total H Field 

ZACC 

Z Acceleration 

DC10 

Servo 10 Time On 

DC9 

Servo 9 Time Off 

DMIN 

Time Of Day - min 

DSEC 

Time Of Day - s 

DSVO 

Starting Volume 

DVOL 

Digital Pretest Volume 

ETIM 

Elapsed Time 

HOUR 

Time Of Day - Hours 

LCAL 

Log Cal (Debug) 

LZER 

Log Zero (Debug) 

MOTR 

Motor Voltage 

OSGP 

Sample Pressure x1 

PADA 

Pad Pressure Absolute 

PADP 

Pad Pressure 

QDIG Digital QPG Pressure SFT Selective Formation Tester 

QONE 

QPG Pressure x1 

QPGP 

QPG Pressure 

QPGT 

QPG Temperature 

QPRP 

QPG Pressure (Raw) 

QPRT 

QPG Temperature (Raw) 

RATE 

Pretest Rate 

RSGP 

Raw Sample Pressure 

SGP 

Sample Pressure 

SGPP 

Digital Sample Pressure 

STCC 

Pretest Rate (Debug) 

STOC 

SMPL Tank Current 

SYSP 

System Pressure 

TEMP 

Temperature 

VOL 

Volume 

GAPI 

GAPI 

GCPS 

Gross Gamma CPS 

GRS 

Stripped Gamma Ray 

SGR Spectral Gamma Ray 

KCPS 

Potassium CPS 

194 



ST 8-14 

Standard 


POTA 

Potassium 

RFAC 

SGR R factor 

TCPS 

Thorium CPS 

TH/K 

Thorium/Potassium 

TH/U 

Thorium/Uranium 

THOR 

Thorium 

U/K 

Uranium/Potassium 

U/KT 

Uranium/(Potassium + Thorium) 

UCPS 

Uranium CPS 

URAN 

Uranium 

FGAP 

Flt. GAPI 

FGCS 

Flt. Gamma CPS 

FKCS 

Flt. Potassium CPS 

FPOT 

Flt. Potassium 

FTCS 

Flt. Thorium CPS 

FTHR 

Flt. Thorium 

FUCS 

Flt. Uranium CPS 

FURA 

Flt. Uranium 

GAPI 

GAPI 

GCPS Gross Gamma CPS SGR Spectral Gamma Ray 

GRS 

Stripped Gamma Ray 

HVG 

High Voltage Control 

KCPS 

Potassium CPS 

KPK. 

Potassium Peak 

OFL1 Output Flag 1 

POTA 

Potassium 

QFL4 Quality Flag 4 

QFL5 Quality Flag 5 

RFAC 

SGR R factor 

TCPS 

Thorium CPS 

TEMP 

Temperature 

TH/K 

Thorium/Potassium 

TH/U 

Thorium/Uranium 

THOR 

Thorium 

TPK. 

Thorium Peak 

U/K 

Uranium/Potassium 

U/KT 

Uranium/(Potassium + Thorium) 

UCPS 

Uranium CPS 

UPF0 Upslope Flag 0 








UPK 

Uranium Peak 

URAN Uranium SGR Spectral Gamma Ray 

100V 

Head Voltage 

5V 

5 Volt Reference 

DAC 

DAC Output 

SP0 

SP0 

SP 

SP 

SP 

Spontaneous Potential 

DPSS 

Density Porosity (SS) 

DRHO 

Density Correction 

FSSM 

SS Fresh Smeared 

GLS 

LS Gain Index 

GSS 

SS Gain Index 

HDPH 

HRes DPHI 

LCMP 

LS Compton CPS 

LLPE 

LS Lower Pe CPS 

LRPE 

LS Res. Match P e 

LSPK 

LS Cesium Peak 

LSRS 

LS Resolution 

LSUC 

LS Barite CPS 

LTCP 

Total LS CPS 

LUPE 

LS Upper P e CPS 

NILS 

LS Noise Index 

NISS SS Noise Index SPeD Spectral Pe Density 

PEC 

P e Correction 

PEF 

Photoelectric Effect 

RHOB 

Bulk Density 

RHOS 

HRes Bulk Density 

RLS 

LS Gain 

RSS 

SS Gain 

SCMP 

SS Compton CPS 

SLPE 

SS Lower P e CPS 

SPEF 

SS P e 

SSPK 

SS Cesium Peak 

SSRS 

SS Resolution 

SSUC 

SS Barite CPS 

STCP 

Total SS CPS 

STME 

SPeD Delta Time 

SUPE 

SS Upper P e CPS 

196 



ST 8-14 

Standard 


TEMP 

Temperature 

UDDF 

Uncorrected Density Diff 

UMA 

Matrix Volumetric 

UPHI 

Density Porosity (USR) 

URHB 

Uncorrected Bulk Density 

USRB 

Uncorrected SS RhoB 

SPeD 

Spectral Pe Density 

BSSM 

SS Barite Smeared 

DDIF 

Density Difference 

DPDL 

Density Porosity (DL) 

DPHI 

Density Porosity (LS) 

DP1R 

10K Deep R 

DP1X 

10K Deep X 

DP2R 

20K Deep R 

DP2X 

20K Deep X 

DP4R 

40K Deep R 

DP4X 

40K Deep X 

DVC1 

10K Deep STI Cond. 

DVC2 


DVC4 


DVR1 

10K Deep STI 

DVR2 

20K Deep STI 

DVR4 

40K Deep STI 

HDV 

Head Voltage 

MD1R 

10K Medium R 

MD1X 10K Medium X STI Simultaneous Triple Induction 

MD2R 

20K Medium R 

MD2X 

20K Medium X 

MD4R 

40K Medium R 

MD4X 

40K Medium X 

MVC1 

10K Medium STI Cond. 

MVC2 


MVC4 


MVR1 

10K Medium STI 

MVR2 


MVR4 


RD1R 

RCAL R 

RD1X 

RCAL X 

RWA 

RWA 

SFL4 

SFL 4 FT Resolution 

SFLE 

SFL E (RAW) 





SFLI 

SFL I (RAW) 

SFLR 

SFL Resistivity 

SFLU 

SFL Raw Resistivity 

TEMP 

Temperature 

XD1R 

XCAL R 

STI Simultaneous Triple Induction 

XD1X 

XCAL X 

ZD1R 

Zero R 

ZD1X 

Zero X 

DTEN 

Delta Tension 

TENS 

Tension 

TEN 

Tension 

ACCX 

X Accelerometer 

ACCY 

Y Accelerometer 

ACCZ 

Z Accelerometer 

INCL 

Inclination 

ITMP 

Internal Temp 

MDAC 

Modem DAC 

MFRQ 

Modem Frequency 

MVCO 

Modem VCO 

WCS Wireline Communication System 

OVPC 

OV Protect Current 

PRIN 

Post Reg Input 

RELB 


WCSS 

WCS Status 

WITB 

WCS ITB Voltage 

WTLI 

Tool Current 

RWTH 

Raw Water Holdup 

WGWH Water-Gas Holdup WHU Water Holdup 

WOWH 

Water-Oil Holdup 

MBVI 

Bulk Volume Irreducible 

MFFI 

Free Fluid Index 

MPHI 

Effective Porosity 

MCBW 

Clay Bound Water 

MPHS 

Total Porosity 

MCTF 

Free Fluid Index Cutoff 

MCTC Clay Bound Water Cutoff NMRT Nuclear Magnetic Resonance Tool 

PM90 Permeability (Murtsovkin 90% Porosity) 

PM98 Permeability (Murtsovkin 98% Porosity) 

PMT 

Permeability (Timur) 

PMTC 

Permeability (Timur/Coates) 

PMK 

Permeability (T2 model) 

TM90 

T2 - 90% Porosity 

198 



ST 8-14 

Standard 


TM94 


TM98 


BP1 

Bin Porosity 2-4 ms 

BP2 


BP3 


BP4 


BP5 


BP6 


BP7 


BP8 


BP9 


BP10 


SPDP 

T2 Spectrum 

SPIP 

Cumulative Spectrum T2 

TFPP 

First Point T2 

TLPP Last Point T2 NMRT Nuclear Magnetic Resonance Tool 

TSPP 

Logarithmic Step of T2 Spectrum 

NPTP 

Number of Points of T2 Spectrum 

ALPP 

Regularization Parameter 

SPPP 

Incremental Spectrum T2 

TFPX 

First Point T2 of Incr. Spectrum 

TSPX Logarithmic Step of Incr. Spectrum 

NPTX Number of Points of Incr. Spectrum 

SPDC 

T2 Spectrum 

SPIC 

Cumulative Spectrum Clay 

SPPC 

Incremental Spectrum Clay 

TFPC 

First Point T2 of Clay Spectrum 

TLPC 

Last Point T2 of Clay Spectrum 

TSPC Logarithmic Step of Clay Spectrum 

TSPC Logarithmic Step of Clay Spectrum 

NPTC 

Number of Points Clay Spectrum 

ALPC 

Regularization Parameter (clay) 


515 Post Oak Blvd. 

Houston, Texas 77027 USA 

Tel: 713-693-4000 

weatherford.com 

Weatherford products and services are subject to the Company's standard terms and 

conditions, available on request or at weatherford.com. For more information contact an 

authorized Weatherford representative. Unless noted otherwise, trademarks and service 

marks herein are the property of Weatherford. Specifications are subject to change 

without notice. Weatherford sells its products and services in accordance with the terms 

and conditions set forth in the applicable contract between Weatherford and the client. 

© 2009 Weatherford. All rights reserved. 4886.00

Wireline Services Log Interpretation Chart Book - Weatherford ...

Create successful ePaper yourself

Delete template?

Save as template?