ACQUISITION REPORT

Locked date: 08-Apr-2007 03:03:57


Sequence: 0010, Line name: GAP07B1376P010, Seismic datatype(s): AF


<maintitle>ACQUISITION REPORT </maintitle>
Survey
ClientApache
Client Reference Id 
Areaelver
VesselWestern Trident
Job Number9606
Survey Type3D Marine Streamer

Sequence
Line NameGAP07B1376P010
Preplot Line Name1376
Direction197.0°
Chargeable Line Length20437.5m
SOL Time (utc)09:12:55 06-Apr-2007
EOL Time (utc)11:33:57 06-Apr-2007

Attributes
Wind Speed / Direction15.0 / SSW[knots]
Swell Height / Direction3.0 / SW[meters]
Propeller Speed126[avg rpm]
Propeller Pitch70[avg %]

  SOL EOL 
Bottom Speed4.84.8[knots]
Water Depth61.093.0[meters]
Feather Angle1.70.0[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise0.120.0[µBar avg rms]
Lowcut Filter Cutoff/Slope2 / 122 / 12[Hz] / [dB/oct]


Production
 
  Shotpoint File Time [utc]
SOL Noise Record(s)   
SOL Dummy Record(s)2122 - 2093 2122 - 2093 09:09:13 - 09:12:48 
FSP Start of Line2092 2092 09:12:55 06-Apr-2007 
MSP(midnight sp)   
LSP End of Line508 508 11:33:57 06-Apr-2007
EOL Dummy Record(s)507 - 499 507 - 499 12:39:19 - 12:40:17 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
2092-10032092 - 100309:12:56 - 11:33:58Prime16ValidProduction
1002-05241002 - 52411:34:06 - 12:36:49Unknown16UnknownShooting on Run-out at Client's request
0523-0508523 - 50812:36:59 - 12:39:12Unknown16UnknownDo not process

Positioning remark 
9:09 19:09 2122 FDSP

9:12 19:12 2092 SOL/First Preplot SP
DC 3m F/A 1.7W Depth 645m

11:19 21:19 1110 Last Preplot SP

11:33 21:33 1003 Last runout SP for preplot line
DC 0m F/A 2.8W Depth 237m

11:35 21:35 993 First turn SP - shooting in turn at client's request
12:36 22:36 524 EOL/LSP

12:38 22:38 514 LDSP


Acquisition remark 
Sp. 2120 ................ BOL Noise Record.
Sp. 2092 @ 09:12 BOL
Sp. 1003 @ 11:33EOL
Sp. 1002 - 524 Shooting on Run-out
Sp. 523 - 508 Do not process
No EOL Noise Record.



Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
12702122 -  12732122 -  12738502  
12711272 -  5041272 -  5047693  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
52702122 -  12732122 -  12738505  
52711272 -  5041272 -  5047696  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Dead trace(s)AFAF traces dead
20872087ALLALLIncomplete external headerAFBlock TRIGUN missing
17621762ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL3160-161Noisy Trace(s)AFNoisy trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL513Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL536Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL552Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL279Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL7194Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL6289Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8292Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL3305Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL3309Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces



List of used abbreviations
SOL/EOLStart/End of line.
FSP/LSPFirst/Last shotpoint of the line.
FCSP/LCSPFirst/Last chargeable shotpoint
MSPMidnight (last) shotpoint of the day
FGSP/LGSPFirst/Last Good Shotpoint
FOSP/LOSPFirst/Last Overlap Shotpoint
FSP/LSP R/OFirst/Last Shotpoint Runout
DEC_FILT/SS_FILTFiltered Decimated Single Sensor/Filtered Single Sensor. ALL in the context of Seismic Datatype means both DEC_FILT and SS_FILT
AFArray Formed
DegDegrees: e[0,360]
revRevolutions
utcUniversal Time Coordinate
SPsShotpoints
CMPsCommon midpoints
NTBPNot to be processed
SISeismic interference
No.Number / Number Of

TIM - ACQUISITION REPORT - Sequence: 0010, Line name: GAP07B1376P010, Seismic datatype(s): AF - Locked date: 08-Apr-2007 03:03:57
GENERATED Sunday, April 8, 2007 3:06:03 AM GMT+00:00