Agreement DE-FC26-02NT15342, Seismic Evaluation of ...

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Figure 110. Graph summarizing the seismic expression of levee overbank, channels and sheet sands. In conclusion, deep-water outcrop analogues help better predict frequency and occurrence of turbidite sequences and fluids when combined with well log and seismic data and DHI’s. The combination of the geological study, which helps to identify depth intervals of interest, with the computed composite reflection coefficient, provides some potentially important insights into seismic characterization of turbidite sequences. These predictions can help to improve the interpretation of Direct Hydrocarbon Indicators. This combined understanding can help to identify commercial hydrocarbon zones that may otherwise be overlooked, help to better quantify reservoir compartments, and predict new drilling targets. Further study Some potential studies that could be improve interpretation of these deepwater facies could be the use of higher frequency seismic imaging. Also multicomponent seismic can be used to identify anisotropic media as well as help differentiate fluid saturation. Agreement DE-FC26-02NT15342, Seismic Evaluation of Hydrocarbon Saturation 134
REFERENCES Alford, R. M., Kelly, K. R., Boore, D. M., 1974, Accuracy of finite difference modeling of acoustic wave equation: Geophysics, 39, p.834-842. Aki, K. and Richards, P., 2002. Quantitative Seismology, 2 nd Ed., University Science Books, Sausolito, California. Alford, R. M., Kelly, K. R., Boore, D. M., 1974, Accuracy of finite difference modeling of acoustic wave equation: Geophysics, 39, p.834-842. Anderson, D., 2004, personal communication. Avseth, P., Flesche, H., Van Wijngaarden, A. J., 2003, AVO classification of lithology and pore fluids constrained by rock physics depth trends, in The Leading Edge, October, p.1004-1011. Baker, K. L., Batzle, M.L., Gibson, R.., 2005, Use of outcrop analogues to predict lithology influence on the seismic signature, SEG Abstract, Tulsa OK. Backus, G.E., 1962. Long-wave elastic anisotropy produced by horizontal layering, J. Geophys. Res., 67, 4427-4440. Bates, R.K., Jackson, J.A., 1984, Dictionary of geological terms, 3rd Ed., American Geological Institute, Random house Inc., N.Y., NewYork. Batzle, M, Wang, Z., 1992, Seismic Properties of petroleum fluids: Geophysics, 57, 1396-1408. Batzle, M., Gardner, M. H., 2000, Lithology and fluids: Seismic model of Brushy Canyon Formation, west Texas, in A. H. Bouma and C. G. Stone, eds., Fine-grained turbidite systems, AAPG memoir 72/SEPM Special Publication No 68, p.127-142. Batzle, M., Han, D., and Hoffman, R., 2001, Optimal hydrocarbon indicators: Presented at the 71 Ann. Internat. Mtg., Soc. Expl. Geophys., Expended Abstracts, Baud, R.D., and others, 2002, Deepwater Gulf of Mexico: America’s expanding frontier: Mineral Management Service OCS report MMS 2002-021. Beaubouef, R. T., C. Rossen, F. B. Zelt, M. D. Sullivan, D. C. Mohrig, and D. C. Jennette, 1999, Field guide for AAPG Hedberg Field Research Conference: deep-water sandstones, Brushy Canyon Formation, West Texas, April 15-20, 1999, Tulsa, Ok, AAPG, p. 99. Borer, J., 2004, personal communication. Agreement DE-FC26-02NT15342, Seismic Evaluation of Hydrocarbon Saturation 135
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June 29, 2006 Seismic Evaluation of
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Abstract: During this last quarter
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Ursa Data .........................
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Figures: Figure 1. Relationship of
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Figure 38. Schematic of geometry an
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Figure 73. The extracted wavelet an
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Executive Summary: In this joint pr
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Results and Discussion Introduction
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Inversion of Sw and porosity from s
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saturation from seismic data. Valid
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The Lagrange function (5) has a sad
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ρ ma − ρ + ( ρ w − ρ g ) ×
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With a water saturation log calcula
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Figure 11. permeability versus poro
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Figure 13. Measured dry and brine s
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Figure 15. The HP (deep) sands have
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pressure-porosity relations. The n
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Figure 19. measure dry and brine sa
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Relations between Sw, porosity, and
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Figure 21. An example realization o
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otherwise the seismic properties we
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correctly reproduce those found in
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study of field data from the Teal S
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Figure 30. Spectral decomposed pres
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(Adapted from CSM Slope and Basin C
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Figure 34. Sequence stratigraphic f
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Figure 36. Schematic depiction of c
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Figure 38. Schematic of geometry an
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Figure 40. Middle slope channel (Ad
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Figure 43. Amalgamated sandstone sh
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CHANNEL AXIS SINGLE STORY CHANNEL C
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MEDIAL LEVEE/OVERBANK 7.62 cm Figur
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L1054 L1041 • Ursa Well A4 Green=
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1.9 miles 37 ft Fizz 19 ft Oil 4.0
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esults in shifts followed by subsid
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Figure 55. Schematic of depositiona
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4 miles 1.5 s 2 s 3 s Hydrocarbon I
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In addition to comparing calculated
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Figure 61. Shear velocity trend for
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each reservoir interval modeled. Th
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Figure 65. Histograms of frequency
Page 83 and 84: the pressure trends were analyzed,
Page 85 and 86: P Impedance Model Synthetic 2 -D Mo
Page 87 and 88: Above Magenta reservoir model The A
Page 89 and 90: Figure 73. The extracted wavelet an
Page 91 and 92: saturation and 50% gas saturation.
Page 93 and 94: Figure 77. The amalgamated channel
Page 95 and 96: Figure 79. Channel complex model 2
Page 97 and 98: Figure 81. AVO stack and gathers fo
Page 99 and 100: Figure 82. Log signature includes g
Page 101 and 102: Figure 85. Extracted wavelet and mo
Page 103 and 104: Figure 87. Amalgamated sheet sand m
Page 105 and 106: Figure 89. Pseudo logs, wavelet, sy
Page 107 and 108: Figure 90. Medial basin floor chann
Page 109 and 110: Figure 92. Pseudo logs, wavelet, sy
Page 111 and 112: Figure 94. The post stack seismic e
Page 113 and 114: Figure 96. Statistically extracted
Page 115 and 116: Figure 98. The proximal levee overb
Page 117 and 118: Figure 99. The response of the prox
Page 119 and 120: Figure 101. The pseudo log, wavelet
Page 121 and 122: Figure 102. The distal levee overba
Page 123 and 124: Figure 104. The complex well log ba
Page 125 and 126: then scaled to the model data by mu
Page 127 and 128: Figure 107. The Ursa log displays g
Page 129 and 130: Figure 109. Composite reflection co
Page 131 and 132: Conclusions One of the main conclus
Page 133: Table 5 Summary of the model facies
Page 137 and 138: Gardner, M. H., Anderson, D. A., Bo
Page 139 and 140: Mahaffie, M.J., 1994, Reservoir cla
Page 141 and 142: Rothman, D.H., Grotzinger, J.P., Fl
Page 143 and 144: Vail, P., 1977, Seismic Stratigraph
Page 145 and 146: downlap (Mtchum, 1977): A base-disc
Page 147 and 148: direction and downlap onto the tran
Page 149 and 150: Agreement DE-FC26-02NT15342, Seismi
Page 159 and 160: APPENDIX E: VALUES USED FOR RESERVO
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