Main Pass EMerge 1
Gulf of Mexico 3D
2
1
16
15
3
4
5
13
14
Breton 20
18
Sound
17
6
8
S63
27
26
25
24
23
22
39
38
37
S60
28
29
30
31
32
33
34
40
41
42
43
44
6
91
90
89
88
87
86
161
160
159
158
157
156
92
93
94
95
96
97
162
163
164
165
166
167
5
12
11
10
9
8
21
22
23
24
7
247
17
Main
Pass
102
101
100
99
98
180
179
178
177
176
175
Main Pass East
32
31
30
29
28
27
26
25
20
19
104
105
106
107
108
109
181
182
183
184
185
186
33
34
35
36
37
38
39
40
27
28
115
114
113
112
111
110
205
204
203
202
201
200
48
47
46
45
44
43
42
41
30
29
116
117
118
119
120
121
206
207
208
209
210
211
49
50
51
52
53
54
55
56
37
38
127
126
125
124
123
122
236
235
234
233
232
231
48
47
46
45
44
43
42
41
40
39
128
129
130
131
132
133
237
238
239
240
241
242
54
55
56
57
58
59
60
139
138
137
136
135
134
271
270
269
268
267
266
66
65
64
63
62
61
140
141
142
143
144
145
272
273
274
275
276
277
85
83
67
82 81
13
53
7
S59
24
12
23
14
68
69
80
16
Southwest
15
Pass
19
20
70
71
72
73 147 146 300 299 298 297 296 295 294 293 292 291 290 289 288 287 286
1
75
74
148
149
301
302
303
304
305
306
2
76
77
151
150
312
311
310
309
308
815
5
79
78
152
153
313
314
315
316
858
6
59
66
65
64
63
62
900
901
902
17
60
67
68
69
942
943
944
945
18
61
70
986
987
988
985
KIRCHHOFF PRESTACK TIME MIGRATION
946
773
774
775
816
817
818
819
859
860
861
862
863
903
904
905
906
907
947
948
949
950
951
307
Viosca Knoll
Multiclient Services
For more details call:
713 689 1000
www.multiclient.westerngeco.com
Main Pass EMerge 1
Acquisition Parameters
Acquisition Parameters
Processing Flow
Main Pass I
Main Pass 298
Merged Data Processing
Energy Source
Airguns
Energy Source
Airguns
Navigation merge / geometry QC
Recording Method
In-line swath
Recording Method
Streamer
Instrument de-phasing
Spread Geometry
2 lines x 120 receivers per line
Spread Geometry
2 lines x 120 receivers per line
Noise attenuation
Receiver Line Spacing
1320 ft
Receiver Line Spacing
100 m
Amplitude recovery / trace editing
Source Line Spacing
330 ft
Source Line Spacing
100 m
Refraction statics
Record Length
8s
Record Length
8s
Surface consistent deconvolution
Sample Rate
2 ms
Sample Rate
2 ms
Surface consistent amplitude recovery (SCAC)
Maximum Offset
13,200 ft
Maximum Offset
11,000 ft
Offset dependent residual amplitude compensation (RAC)
Fold
60
Fold
60
Residual statics
Cell Size
165 x 55 ft
Cell Size
12.5 x 25 m
Velocity analysis (one mile per grid)
Survey Completed
1993
Survey Completed
1990
Prestack Kirchhoff time migration for velocity lines
Velocity analysis (0.5 mile grid)
Main Pass II
Main Pass 299
Prestack Kirchhoff time migration
(turning wave, 60 fold, 25 x 20 m o/p bins)
Energy Source
Airguns
Energy Source
Airguns
Recording Method
In-line swath
Recording Method
Streamer
Spread Geometry
2 lines x 208 receivers per line
Spread Geometry
1 line x 120 receivers per line
Receiver Line Spacing
1320 ft
Receiver Line Spacing
25 m
Source Line Spacing
330 ft
Source Line Spacing
25 m
Record Length
8s
Record Length
7s
Sample Rate
2 ms
Sample Rate
2 ms
Reprocessing for Merged Data
Maximum Offset
10,450 ft
Maximum Offset
11,000 ft
Additional iteration of phase correction
Fold
60
Fold
60
Residual statics
Cell Size
165 x 49.212 ft
Cell Size
12.5 x 25 m
Survey Completed
1994
Survey Completed
1986
Prestack Kirchhoff time migration
(turning wave, 60 fold, 25 x 20 m o/p bins)
Main Pass III
Velocity analysis
Stack (full and 3 angle ranges)
Noise attenuation / filtering / scaling
Processing completed March 2004
Stack (full and 3 angle ranges)
Noise attenuation / filtering / scaling
Main Pass 313
Energy Source
Airguns
Energy Source
Airguns
Recording Method
In-line swath
Recording Method
Streamer
Spread Geometry
2 lines x 320 receivers per line
Spread Geometry
1 line x 96 receivers per line
Receiver Line Spacing
1320 ft
Receiver Line Spacing
50 m
Source Line Spacing
330 ft
Source Line Spacing
50 m
Record Length
8s
Record Length
7s
Sample Rate
2 ms
Sample Rate
2 ms
Maximum Offset
13,325 ft
Maximum Offset
10,581 ft
Fold
40
Fold
48
Cell Size
82.02 x 82.02 ft
Cell Size
16.65 x 25 m
Survey Completed
1994
Survey Completed
1986
Processing completed January 2005
Mud III
Energy Source
Airguns
Recording Method
Streamer
Spread Geometry
2 lines x 180 receivers per line
Receiver Line Spacing
160 m
Source Line Spacing
160 m
Record Length
8s
Maximum Offset
15,000 ft
Fold
90
Cell Size
131.2 x 82 ft
Survey Completed
1996
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