ACQUISITION REPORT

Locked date: 08-Apr-2007 03:03:56


Sequence: 0007, Line name: GAP07B1056P007, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1056P007
Preplot Line Name1056
Direction17.0°
Chargeable Line Length22256.25m
SOL Time (utc)18:51:36 05-Apr-2007
EOL Time (utc)21:33:19 05-Apr-2007

Attributes
Wind Speed / Direction16.0 / SW[knots]
Swell Height / Direction3.0 / SSW[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.854.7[knots]
Water Depth155.0299.0[meters]
Feather Angle-1.60.0[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise13.678.46[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)755 - 784 755 - 784 18:19:15 - 18:22:52 
FSP Start of Line785 785 18:51:36 05-Apr-2007 
MSP(midnight sp)   
LSP End of Line2201 2201 21:33:19 05-Apr-2007
EOL Dummy Record(s)2202 - 2211 2202 - 2211 21:33:27 - 21:34:37 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0785-1014785 - 101418:22:59 - 18:51:29Unknown16UnknownShooting on Run-in at Client's request
1015-12031015 - 120318:51:37 - 19:15:09Prime16Valid 
1961-22011961 - 220121:01:30 - 21:33:20Prime16Valid 

Positioning remark 
SP 1204-1960 DNP d/t gun air leak
Line ok

Acquisition remark 
SP 785 - 1014 shooting on run in.
BOL noise test bend in cable
BOL SP 1015 @ 18:51
SP 1204: LGSP d/t Gun 3-3 Autofire @ 19:15
SP 1205 -1959: DNP d/t picking up string 3
SP 1960 next good SP @ 21:01
EOL SP 2201 @ 21:33



Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1262755 -  777755 -  777233 No valid data
1263778 -  1607778 -  16078301  
12641608 -  22111608 -  22116042  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5262755 -  757755 -  75736 No valid data, bad media
5263758 -  1607758 -  16078504  
52641608 -  22111608 -  22116045  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL279Spiking AF TracesAFSpiking AF trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Noisy Trace(s)AFNoisy trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL7194Dead trace(s)AFAF traces dead
ALLALL3271Spiking AF TracesAFSpiking AF trace(s)
ALLALL3271Noisy Trace(s)AFNoisy trace(s)
ALLALL3296Noisy Trace(s)AFNoisy trace(s)
11951195ALLALLAutofireAFGUN 3-3 autofire
1205-19591205-1959ALLALLAutofireAF1204 Last Good Shot Point before Gun 3-3 Autofire

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL513, 36, 52Weak 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
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: 0007, Line name: GAP07B1056P007, Seismic datatype(s): AF - Locked date: 08-Apr-2007 03:03:56
GENERATED Sunday, April 8, 2007 3:06:05 AM GMT+00:00