ACQUISITION REPORT

Locked date: 20-Apr-2007 17:46:17


Sequence: 0079, Line name: GAP07B1904P079, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1904P079
Preplot Line Name1904
Direction197.0°
Chargeable Line Length38400.0m
SOL Time (utc)22:44:40 19-Apr-2007
EOL Time (utc)03:37:14 20-Apr-2007

Attributes
Wind Speed / Direction5.0 / S[knots]
Swell Height / Direction2.0 / E[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.64.8[knots]
Water Depth2512.01055.0[meters]
Feather Angle3.7-2.4[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.00.0[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)3235 - 3206 3235 - 3206 22:40:45 - 22:44:33 
FSP Start of Line3205 3205 22:44:40 19-Apr-2007 
MSP(midnight sp)2633 2633 23:59:53 19-Apr-2007
LSP End of Line915 915 03:37:14 20-Apr-2007
EOL Dummy Record(s)914 - 913 914 - 913 03:37:32 - 03:37:40 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11583205 - 115822:44:41 - 03:05:15Prime16ValidProduction SP
1157-09151157 - 91503:05:23 - 03:37:24Unknown16UnknownRun-out Shotpoints

Positioning remark 
Line ok

Acquisition remark 
Shooting on run out
Do not process SP 968-963.



Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14223235 -  28643235 -  28643722 Copy of Copy d/t Single EOF mark
14232863 -  26692863 -  26691953  
14242668 -  18602668 -  18608091  
14251859 -  10101859 -  10108502  
14261009 -  9131009 -  913973  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54223235 -  28373235 -  28373995  
54232836 -  27102836 -  27101276 Copy from original tape d/t single eof mark
54242709 -  18602709 -  18608504  
54251859 -  10101859 -  10108505  
54261009 -  9131009 -  913976  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
968-963968-963ALLALLDNPAFDo not process d/t Navigation failure.
ALLALL321Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Noisy Trace(s)AFNoisy trace(s)
ALLALL1106Noisy Trace(s)AFNoisy trace(s)
ALLALL1107Noisy Trace(s)AFNoisy trace(s)
ALLALL8118Noisy Trace(s)AFNoisy trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL8212Noisy Trace(s)AFNoisy trace(s)
ALLALL8213Noisy Trace(s)AFNoisy trace(s)
ALLALL4222Noisy Trace(s)AFNoisy trace(s)
ALLALL4223Noisy Trace(s)AFNoisy trace(s)
ALLALL2226Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking 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
22112211ALLALLIncomplete external headerAFBlock TRIGUN missing
21312131ALLALLIncomplete external headerAFBlock TRIGUN missing
15241524ALLALLIncomplete external headerAFBlock TRIGUN missing
11871187ALLALLIncomplete external headerAFBlock TRIGUN missing
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
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
32303230ALLALLNoise RecordAFSOL Noise Record
32053205ALLALLBOLAFFirst production SP
11581158ALLALLEOLAFLast production SP
915915ALLALLRun-outAFLast Run-out Shotpoint.



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: 0079, Line name: GAP07B1904P079, Seismic datatype(s): AF - Locked date: 20-Apr-2007 17:46:17
GENERATED Friday, April 20, 2007 5:47:18 PM GMT+00:00