A Deterministic Evaluation of eismic Fidelity using Velocity Modeling ...

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Figure 15. Sequence stratigraphy of upper Gulf of Mexico sediments with paleontologic markers through the Cenozoic ( Tipsword et al., 1966). 36
Top Hackberry Sand Hackberry Base Nodosaria blanpiedi (sand stringer) Textularia seligi Vicksberg Lower Frio Figure 16. Spontaneous potential log of Oligocene section from the Seig well in the Vinton Dome survey showing the transgrssive phase from the Vicksburg through the lower Frio and the channel sands of the Hackberry (OPEX). 37
Page 1 and 2: Chapter 1 Introduction 1.1 Summary
Page 3 and 4: 1.2.1 Geology Vinton Dome is a pier
Page 5 and 6: layer in land data that in extreme
Page 7 and 8: logs as being an effective approach
Page 9 and 10: Chapter 2 Geology of Vinton Dome 2.
Page 11 and 12: The Gulf of Mexico Basin contains U
Page 13 and 14: developed from repetitive episodes
Page 15 and 16: of the upper Frio. Overlying the lo
Page 17 and 18: structures form by the differential
Page 19 and 20: Dividing the Gulf of Mexico Basin i
Page 21 and 22: 2.6 Geologic Modeling Historically,
Page 23 and 24: 2.6.1 Vinton Geology Analysis of se
Page 25 and 26: surface and a number of small subma
Page 27 and 28: established the Mississippi delta a
Page 29 and 30: Figure 2. Outline of the extents of
Page 31 and 32: Figure 6. Salt sediment contacts us
Page 33 and 34: Figure 10. Fault pattern representa
Page 35: Figure 14. Stratigraphic column of
Page 39 and 40: Figure 18. Structure map contoured
Page 41 and 42: Gyroidina scalata Outer shelf Gyroi
Page 43 and 44: Upper Frio Sands A Sand base B Sand
Page 45 and 46: Top Anahuac Middle Shelf Heterosteg
Page 47 and 48: Miocene sands Figure 27. Spontaneou
Page 49 and 50: Vinton Dome Figure 30. Late Miocene
Page 51 and 52: 3.1 Introduction Chapter 3 Processi
Page 53 and 54: 3.3 Processing My primary objective
Page 55 and 56: 38-42). For QC I would brute stack
Page 57 and 58: Another significant issue was to id
Page 59 and 60: Table 2 Final processing flow Input
Page 61 and 62: Number of stacked traces 12.5km 12.
Page 63 and 64: TWT seconds a 12.5km TWT seconds b
Page 65 and 66: TWT seconds 12.5km Figure 38. Brute
Page 71 and 72: Chapter 4 Velocity Modeling and Pre
Page 73 and 74: quality motivated a reassessment of
Page 75 and 76: The layer-based approach is much mo
Page 77 and 78: of seismically derived velocities.
Page 79 and 80: To test differences between seismic
Page 81 and 82: ased data, indicating higher fideli
Page 83 and 84: 4.5 Conclusions and Discussion I co
Page 85 and 86: By using sonic logs the velocities
Page 87 and 88:
Figure 50. Velocity cube of the sed
Page 89 and 90:
Velocity in ft/sec Figure 52. Prest
Page 91 and 92:
Depth in kilo-feet a. b. Figure 56.
Page 93 and 94:
Figure 59. Graphic user interface s
Page 95 and 96:
Truncation of sediment onto salt a
Page 97 and 98:
s 1 s 1 S e C 0 1 O W 34 M M 0 C a
Page 99 and 100:
Prestack time migrated velocity mod
Page 101 and 102:
Salt on PSTM Prestack time migrated
Page 103 and 104:
Time in seconds Bright spot 12.5km
Page 105 and 106:
PSTM prestack time well-based migra
Page 107 and 108:
attributes also provided me with an
Page 109 and 110:
types of coherence. The first type
Page 111 and 112:
comparisons, those at the same dept
Page 113 and 114:
Identifying reduced fidelity in the
Page 115 and 116:
Faults Channel Figure 72. PSTM cohe
Page 117 and 118:
Depth slice of coherence cube from
Page 119 and 120:
Compartmentalized faults 5895 feet
Page 121 and 122:
Well-based PSDM - faults traced fro
Page 123 and 124:
Channel Radial faults 3985 feet a C
Page 125 and 126:
Well-based PSDM Prestack time migra
Page 127 and 128:
Well-based PSDM Faults imaged with
Page 129 and 130:
structure and they must complement
Page 131 and 132:
Imaged poorly was a fault identifie
Page 133 and 134:
interpretation of the high angle gr
Page 135 and 136:
Inline 1391 well-based PSDM Inline
Page 137 and 138:
Figure 83. Interpretation showing t
Page 139 and 140:
Channel nnen a Channel b Figure 85.
Page 141 and 142:
yet there are several issues regard
Page 143 and 144:
7.2.3 Attributes I used attributes
Page 145 and 146:
seismic data provided a more detail
Page 147 and 148:
educed the noise in the field data
Page 149 and 150:
PSDM data to evaluate velocity mode
Page 151 and 152:
10, Society of Exploration Geophysi
Page 153 and 154:
Marfurt, K. J., Kirlin, R. L., Farm
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