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C 1 CLIENT Chevron USA Inc. !
C 2 LINE ZVSP !
C 3 DATE: 11-Oct-04 PROCESSOR: SCHLUMBERGER !
C 4 TOOL TYPE: VSI !
C 5 DATA TRACES/RECORD: 1 !
C 6 SAMPLE INTERVAL: 5501 SAMPLES/TRACE !
C 7 RECORDING FORMAT: SEGY MEASUREMENT SYSTEM: FT !
C 8 SAMPLE CODE: 32 BIT FLOATING POINT !
C 9 GAIN TYPE: !
C10 FILTERS ALIAS HZ NOTCH HZ BAND - HZ SLOPE - DB/OCT
C11 SOURCE TYPE: Itaga Airgun !
C12 SOURCE LOCATION: offset:150 ft, azi:180 deg, elev:-12 ft !
C13 SWEEP: START HZ END HZ LENGTH MS !
C14 TAPER: START LENGTH MS END LENGTH MS TYPE !
C15 SPREAD: !
C16 GEOPHONES: !
C17 PATTERN: !
C18 TRACES SORTED BY: !
C19 AMPLITUDE RECOVERY: !
C20 MAP PROJECTION ZONE ID COORDINATE UNITS !
C21 PROCESSING: !
C22 !
C23 COMPANY: Chevron USA Inc. !
C24 WELL: OCS-G 19409 001 ST00BP00 !
C25 FIELD: Alaminos Canyon 815 !
C26 !
C27 PROCESSING STEP: Waveshape Deconvolution - final upgoing wavefield !
C28 5-80 Hz waveshape !
C29 !
C30 Polarity: increase in acoustic impedance is a trough !
C31 !
C32 ************************ Default Header Byte Locations *******************!
C33 Shot No 9-12 Depth Coefficient 69-70 !
C34 Coordinate Coefficient 71-72 X Source 73-76 !
C35 Source Offset 37-40 Transit Time 107-108 Y Source 77-80 !
C36 Measured Depth 41-44 Recording Delay 109-110 X Receiver 81-84 !
C37 TVD 53-56 Number of Samples 115-116 Y Receiver 85-88 !
C38 *************** Migrated Data Default Header byte locations **************!
C39 CDP X 81-84 CDP Y 85-88 !
C40 CDP Offset 41-44 CDP Number 21-24 !
************************* Binary Heading *************************
Job Identification (Bytes 1- 4) : 0
Line Number (Bytes 5- 8) : 1
Reel Number (Bytes 9-12) : 3
Traces per record (Bytes 13-14) : 1
Aux Traces per record (Bytes 15-16) : 0
Sample Interval (uS) (Bytes 17-18) : 1000
Original Sample Interval (uS) (Bytes 19-20) : 0
Samples per data trace (Bytes 21-22) : 5501
Original Samples per data trace (Bytes 23-24) : 0
Data sample format code (Bytes 25-26) : 1
1=Floating Point 4 byte 2=Fixed Point 4 byte
3=Fixed Point 2 byte 4=Fixed Point with gain 4 byte
5=IEEE Floating Point 4 byte
CDP Fold (Bytes 27-28) : 0
Trace Sorting Code (Bytes 29-30) : 0
Vertical Sum Code (Bytes 31-32) : 0
Sweep Frequency at start (Bytes 33-34) : 0
Sweep Frequency at end (Bytes 35-36) : 0
Sweep Length (mSec) (Bytes 37-38) : 0
Sweep Type code (Bytes 39-40) : 0
Trace number of sweep channel (Bytes 41-42) : 0
Sweep Trace taper at start (Bytes 43-44) : 0
Sweep Trace taper at end (Bytes 45-46) : 0
Taper Type (Bytes 47-48) : 0
Correlated Data (1=N, 2=Y) (Bytes 49-50) : 0
Binary Gain Recovered (1=Y, 2=N) (Bytes 51-52) : 0
Amplitude Recovery Method (Bytes 53-54) : 0
Measurement System (1=m, 2=ft) (Bytes 55-56) : 2
Rec MD TVD REC X REC Y SRC X SRC Y TOFD
****** ********* ********* ********* ********* ********* ********* ******
------ 41-44 53-56 81-84 85-88 73-76 77-80 109-110
****** ********* ********* ********* ********* ********* ********* ******
1 12400.00 12308.00 0.00 0.00 0.00 -150.00 2367
2 12450.00 12358.00 0.00 0.00 0.00 -150.00 2374
3 12500.00 12408.00 0.00 0.00 0.00 -150.00 2381
4 12550.00 12458.00 0.00 0.00 0.00 -150.00 2388
5 12600.00 12508.00 0.00 0.00 0.00 -150.00 2394
6 12650.00 12558.00 0.00 0.00 0.00 -150.00 2401
7 12700.00 12608.00 0.00 0.00 0.00 -150.00 2408
8 12750.00 12658.00 0.00 0.00 0.00 -150.00 2415
9 12800.00 12708.00 0.00 0.00 0.00 -150.00 2422
10 12850.00 12758.00 0.00 0.00 0.00 -150.00 2430
11 12900.00 12808.00 0.00 0.00 0.00 -150.00 2437
12 12950.00 12858.00 0.00 0.00 0.00 -150.00 2444
13 13000.00 12908.00 0.00 0.00 0.00 -150.00 2451
14 13050.00 12958.00 0.00 0.00 0.00 -150.00 2459
15 13100.00 13008.00 0.00 0.00 0.00 -150.00 2467
16 13150.00 13058.00 0.00 0.00 0.00 -150.00 2474
17 13200.00 13108.00 0.00 0.00 0.00 -150.00 2481
18 13250.00 13158.00 0.00 0.00 0.00 -150.00 2487
19 13350.00 13258.00 0.00 0.00 0.00 -150.00 2502
20 13400.00 13308.00 0.00 0.00 0.00 -150.00 2510
21 13450.00 13358.00 0.00 0.00 0.00 -150.00 2513
22 13500.00 13408.00 0.00 0.00 0.00 -150.00 2523
23 13550.00 13458.00 0.00 0.00 0.00 -150.00 2529
24 13600.00 13508.00 0.00 0.00 0.00 -150.00 2536
25 13650.00 13558.00 0.00 0.00 0.00 -150.00 2542
26 13700.00 13608.00 0.00 0.00 0.00 -150.00 2549
27 13750.00 13658.00 0.00 0.00 0.00 -150.00 2556
28 13800.00 13708.00 0.00 0.00 0.00 -150.00 2563
29 13850.00 13758.00 0.00 0.00 0.00 -150.00 2570
30 13900.00 13808.00 0.00 0.00 0.00 -150.00 2577
31 13950.00 13858.00 0.00 0.00 0.00 -150.00 2584
32 14000.00 13908.00 0.00 0.00 0.00 -150.00 2590
33 14050.00 13958.00 0.00 0.00 0.00 -150.00 2597
34 14100.00 14008.00 0.00 0.00 0.00 -150.00 2603
35 14150.00 14058.00 0.00 0.00 0.00 -150.00 2609
36 14200.00 14108.00 0.00 0.00 0.00 -150.00 2616
37 14250.00 14158.00 0.00 0.00 0.00 -150.00 2622
38 14350.00 14258.00 0.00 0.00 0.00 -150.00 2633
39 14400.00 14308.00 0.00 0.00 0.00 -150.00 2639
40 14450.00 14358.00 0.00 0.00 0.00 -150.00 2645
41 14500.00 14408.00 0.00 0.00 0.00 -150.00 2651
42 14550.00 14458.00 0.00 0.00 0.00 -150.00 2656
43 14600.00 14508.00 0.00 0.00 0.00 -150.00 2662
44 14650.00 14558.00 0.00 0.00 0.00 -150.00 2668
45 14716.00 14624.00 0.00 0.00 0.00 -150.00 2675
46 14750.00 14658.00 0.00 0.00 0.00 -150.00 2680
47 14766.00 14674.00 0.00 0.00 0.00 -150.00 2681