ACQUISITION REPORT

Locked date: 22-Apr-2007 21:49:56


Sequence: 0092, Line name: GAP07B1584J092, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1584J092
Preplot Line Name1584
Direction197.0°
Chargeable Line Length16818.75m
SOL Time (utc)10:52:39 22-Apr-2007
EOL Time (utc)12:47:03 22-Apr-2007

Attributes
Wind Speed / Direction25.0 / S[knots]
Swell Height / Direction2.0 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.744.39[knots]
Water Depth1469.00.0[meters]
Feather Angle1.8-1.5[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise11.979.67[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)1990 - 1961 1990 - 1961 10:48:52 - 10:52:32 
FSP Start of Line1960 1960 10:52:39 22-Apr-2007 
MSP(midnight sp)   
LSP End of Line1064 1064 12:47:03 22-Apr-2007
EOL Dummy Record(s)1063 - 1054 1063 - 1054 12:47:12 - 12:48:26 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1960-10641960 - 106410:52:40 - 12:47:04Infill16ValidInfill Shotpoints

Positioning remark 
Noisy line d/t wx
Line ok

Acquisition remark 
Infill line
Random Breakout on Records d/t Sea State.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14511990 -  11411990 -  11418502  
14521140 -  10541140 -  1054873  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54511990 -  11411990 -  11418505  
54521140 -  10541140 -  1054876  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
149614961245-246Spiking AF TracesAFSpiking AF trace(s)
13611361835-36, 104Spiking AF TracesAFSpiking AF trace(s)
10911091492Spiking AF TracesAFSpiking AF trace(s)
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL5105Noisy Trace(s)AFNoisy trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL8141Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8220Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3271Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
14371437ALLALLIncomplete external headerAFBlock TRIGUN missing
12331233ALLALLIncomplete external headerAFBlock TRIACQ missing
12321232ALLALLIncomplete external headerAFBlock TRIACQ missing
ALLALL513, 36, 52Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8225, 230, 292Weak 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
19871987ALLALLNoise RecordAFSOL Noise Record
19641964ALLALLEOLAFLast Infill Shotpoint
19601960ALLALLBOLAFFirst Infill Shotpoint.
10601060ALLALLNoise 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: 0092, Line name: GAP07B1584J092, Seismic datatype(s): AF - Locked date: 22-Apr-2007 21:49:56
GENERATED Sunday, April 22, 2007 9:50:11 PM GMT+00:00