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

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seismic synthetic signature that has a complex Ursa log background in Figure 100. The only difference occurs in the brine saturated model. There are two amplitude anaomalies that appear to be associated with channel compartments. The AVO response of each interval can be seen in Figure 101. In this figure, pseudo wells at 300 m for the respective fluid cases are shown, the wavelet convolved trace and the extracted synthetic trace are shown, and also the Zoeppritz modeled AVO gathers are shown. The brine and oil cases have slight increases in amplitude with offset. The 10% and 50% gas models show decrease in offset. These will later be compared to the original Ursa data AVO response. Agreement DE-FC26-02NT15342, Seismic Evaluation of Hydrocarbon Saturation 116
Figure 99. The response of the proximal levee overbank model shows reservoir top in green, pseudo well log 300 m. Shows brine, oil, 10% and 50% gas saturated reservoir respectively. Subtle response occurs at the channel features but the levee is essentially invisible until fluids are present. Agreement DE-FC26-02NT15342, Seismic Evaluation of Hydrocarbon Saturation 117
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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
Page 65 and 66: L1054 L1041 • Ursa Well A4 Green=
Page 67 and 68: 1.9 miles 37 ft Fizz 19 ft Oil 4.0
Page 69 and 70: esults in shifts followed by subsid
Page 71 and 72: Figure 55. Schematic of depositiona
Page 73 and 74: 4 miles 1.5 s 2 s 3 s Hydrocarbon I
Page 75 and 76: In addition to comparing calculated
Page 77 and 78: Figure 61. Shear velocity trend for
Page 79 and 80: each reservoir interval modeled. Th
Page 81 and 82: 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: Figure 98. The proximal levee overb
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 and 134: Table 5 Summary of the model facies
Page 135 and 136: REFERENCES Alford, R. M., Kelly, K.
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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