ACQUISITION REPORT

Locked date: 19-Apr-2007 00:17:20


Sequence: 0071, Line name: GAP07B1872P071, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1872P071
Preplot Line Name1872
Direction197.0°
Chargeable Line Length38568.75m
SOL Time (utc)04:26:40 18-Apr-2007
EOL Time (utc)09:30:55 18-Apr-2007

Attributes
Wind Speed / Direction21.0 / SW[knots]
Swell Height / Direction2.5 / NE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.94.5[knots]
Water Depth2448.0986.0[meters]
Feather Angle1.5-0.6[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise5.610.0[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)6672 - 3206 6672 - 3206 09:32:32 - 04:26:34 
FSP Start of Line3205 3205 04:26:40 18-Apr-2007 
MSP(midnight sp)   
LSP End of Line797 797 09:30:55 18-Apr-2007
EOL Dummy Record(s)796 - 787 796 - 787 09:31:06 - 09:32:25 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11493205 - 114904:26:41 - 08:41:56Prime16ValidProduction Shotpoint
1148-07971148 - 79708:42:04 - 09:30:57Unknown16UnknownShooting on Run-out.

Positioning remark 
Line ok

Acquisition remark 
No EOL Noise record


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14023235 -  23863235 -  23868501  
14032385 -  15362385 -  15368502  
14041535 -  7971535 -  7977543  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54023235 -  23863235 -  23868504  
54032385 -  15362385 -  15368505  
54041535 -  7971535 -  7977546  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
30053005ALLALLIncomplete external headerAFBlock TRIGUN missing
28312831ALLALLIncomplete external headerAFBlock TRIGUN missing
25262526ALLALLIncomplete external headerAFBlock TRIGUN missing
16171617ALLALLIncomplete external headerAFBlock TRIGUN missing
11611161ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL5272Spiking 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
ALLALL8292, 319Weak 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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
32303230ALLALLNoise RecordAFSOL Noise Record
32053205ALLALLBOLAFFirst Production Shot Point
11491149ALLALLEOLAFLast Production SP.
797797ALLALLRun-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: 0071, Line name: GAP07B1872P071, Seismic datatype(s): AF - Locked date: 19-Apr-2007 00:17:20
GENERATED Thursday, April 19, 2007 12:17:44 AM GMT+00:00