ACQUISITION REPORT

Locked date: 12-Apr-2007 20:59:09


Sequence: 0035, Line name: GAP07B1280P035, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1280P035
Preplot Line Name1280
Direction17.0°
Chargeable Line Length21000.0m
SOL Time (utc)01:46:29 11-Apr-2007
EOL Time (utc)04:40:27 11-Apr-2007

Attributes
Wind Speed / Direction17.0 / SE[knots]
Swell Height / Direction2.0 / SE[meters]
Propeller Speed126[avg rpm]
Propeller Pitch67[avg %]

  SOL EOL 
Bottom Speed4.54.7[knots]
Water Depth239.0447.0[meters]
Feather Angle-0.3-1.1[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise5.940.08[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)821 - 850 821 - 850 01:42:18 - 01:46:28 
FSP Start of Line851 851 01:46:29 11-Apr-2007 
MSP(midnight sp)   
LSP End of Line2200 2200 04:40:27 11-Apr-2007
EOL Dummy Record(s)2201 - 2210 2201 - 2210 04:40:35 - 04:41:44 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0851-1080851 - 108001:46:37 - 02:18:22Unknown16UnknownShooting on Run-in
1081-22001081 - 220002:18:30 - 04:40:27Prime16ValidProductions Shot

Positioning remark 
Line ok
Strong current at sol

Acquisition remark 
SP. 821 : FDSP
SP. 851 - 1080 : Shooting on Run-in
SP. 1046 : SOL Noise Record.
SP. 1081 : FSP @ 02:18 SOL
SP. 2200 : LSP @ 04:40 EOL
SP. 2202 : EOL Noise Record


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1327821 -  1670821 -  16708501  
13281671 -  22101671 -  22105402  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5327821 -  1670821 -  16708504  
53281671 -  22101671 -  22105405  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Noisy Trace(s)AFNoisy trace(s)
ALLALL8258Noisy Trace(s)AFNoisy trace(s)
ALLALL3305Spiking AF TracesAFSpiking AF trace(s)
ALLALL3309Spiking AF TracesAFSpiking AF trace(s)
10461046ALLALLDNPAFGuns disabled for noise record
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8212Noisy Trace(s)AFNoisy trace(s)
ALLALL8213Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3296Noisy Trace(s)AFNoisy trace(s)
ALLALL3297Noisy Trace(s)AFNoisy trace(s)
11701170ALLALLIncomplete external headerAFBlock TRIGUN missing

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
ALLALL8292Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
851851ALLALLRun-inAFFirst Run-in Sp.
10461046ALLALLNoise RecordAFSOL Noise Record
10811081ALLALLBOLAFFirst Production Sp.



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: 0035, Line name: GAP07B1280P035, Seismic datatype(s): AF - Locked date: 12-Apr-2007 20:59:09
GENERATED Thursday, April 12, 2007 9:00:52 PM GMT+00:00