ACQUISITION REPORT

Locked date: 24-Apr-2007 18:40:08


Sequence: 0096, Line name: GAP07B1488A096, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1488A096
Preplot Line Name1488
Direction197.0°
Chargeable Line Length17400.0m
SOL Time (utc)04:58:45 23-Apr-2007
EOL Time (utc)06:56:59 23-Apr-2007

Attributes
Wind Speed / Direction24.0 / SE[knots]
Swell Height / Direction3.0 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.54.68[knots]
Water Depth891.00.0[meters]
Feather Angle7.20.1[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise13.614.57[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)1993 - 1964 1993 - 1964 04:54:46 - 04:58:38 
FSP Start of Line1963 1963 04:58:45 23-Apr-2007 
MSP(midnight sp)   
LSP End of Line1036 1036 06:56:59 23-Apr-2007
EOL Dummy Record(s)1035 - 1026 1035 - 1026 06:57:08 - 06:58:19 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1963-18461963 - 184604:58:46 - 05:14:25Reshoot16ValidReshoot Seq.46.
1845-10361845 - 103605:14:33 - 06:57:00Infill16ValidInfill Shotpoints.

Positioning remark 
Line ok

Acquisition remark 
Reshoot Seq. 24, Plus Infill.
Random break out on all streamers 20-30% of traces at approx 30-40uB.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14591993 -  11441993 -  11448503  
14601143 -  10261143 -  10261181  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54591993 -  11441993 -  11448506  
54601143 -  10261143 -  10261184  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
18451845ALLALLIncomplete external headerAFBlock TRIGUN missing
18351835ALLALLIncomplete external headerAFBlock TRIGUN missing
18171817ALLALLIncomplete external headerAFBlock TRIGUN missing
15841584ALLALLIncomplete external headerAFBlock TRIGUN missing
15761576ALLALLIncomplete external headerAFBlock TRIGUN missing
15571557ALLALLIncomplete external headerAFBlock TRIGUN missing
14001400ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL380, 128Spiking AF TracesAFSpiking AF trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL554, 105-106Noisy Trace(s)AFNoisy trace(s)
ALLALL8128, 267-269Spiking AF TracesAFSpiking AF trace(s)
ALLALL8141, 220Spiking AF TracesAFSpiking AF trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL259Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3271Spiking AF TracesAFSpiking AF trace(s)
ALLALL6304Spiking AF TracesAFSpiking AF trace(s)

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
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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
19901990ALLALLNoise RecordAFSOL Noise Record
19631963ALLALLBOLAFFirst Re-shoot SP.
18561856ALLALLRe-shootAFLast Re-shoot SP.
18461846ALLALLOverlapAFLast Re-shoot Overlap SP.
18451845ALLALLInfillAFFirst Infill SP.
10361036ALLALLEOLAFLast Infill SP.
10331033ALLALLNoise RecordAFEOL Noise Record



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: 0096, Line name: GAP07B1488A096, Seismic datatype(s): AF - Locked date: 24-Apr-2007 18:40:08
GENERATED Tuesday, April 24, 2007 6:40:33 PM GMT+00:00