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

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Vinton (a) Jennings 40 Vinton Dome (b) Figure 20. (a) Large regional down-to-basin fault connecting Vinton and Jennings domes (AAPG, 1972) (b). Structure map <strong>of</strong> the Anahuac showing detailed structural relationships <strong>of</strong> salt domes in the Vinton Dome study area (Paine, 1966).
Gyroidina scalata Outer shelf Gyroidina soldanii Sphaeroidina Sandy lower Hackberry Figure 21. Spontaneous potential log showing shale-dominated facies in upper Hackberry overlying sandier lower Hackberry (OPEX). 41
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 and 36: Figure 14. Stratigraphic column of
Page 37 and 38: Top Hackberry Sand Hackberry Base N
Page 39: Figure 18. Structure map contoured
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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