ACQUISITION REPORT

Locked date: 22-Apr-2007 14:33:16


Sequence: 0088, Line name: GAP07B1744P088, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1744P088
Preplot Line Name1744
Direction197.0°
Chargeable Line Length15843.75m
SOL Time (utc)15:17:12 21-Apr-2007
EOL Time (utc)17:35:53 21-Apr-2007

Attributes
Wind Speed / Direction15.0 / S[knots]
Swell Height / Direction1.5 / S[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.924.41[knots]
Water Depth2038.3733.0[meters]
Feather Angle1.9-1.0[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise4.084.46[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)1985 - 1956 1985 - 1956 15:13:30 - 15:17:06 
FSP Start of Line1955 1955 15:17:12 21-Apr-2007 
MSP(midnight sp)  00:00:00 00-???-00
LSP End of Line841 841 17:35:53 21-Apr-2007
EOL Dummy Record(s)840 - 824 840 - 824 17:36:01 - 17:38:00 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1955-11111955 - 111115:17:13 - 17:01:33Prime16ValidProduction SP
1110-08411110 - 84117:01:40 - 17:35:53Unknown16UnknownShooting on Run-Out

Positioning remark 
P190 made for SP 1955-841. Line Ok

Acquisition remark 
Shooting on Run-out


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14431985 -  11361985 -  11368503  
14441135 -  8241135 -  8243121  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54431985 -  11361985 -  11368506  
54441135 -  8241135 -  8243124  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL8141, 220Spiking AF TracesAFSpiking AF trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL7113Spiking AF TracesAFSpiking AF trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Spiking 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
13621362ALLALLIncomplete external headerAFBlock TRIGUN missing
12501250ALLALLIncomplete external headerAFBlock TRIACQ missing
ALLALL8225, 230Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
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
19801980ALLALLNoise RecordAFSOL Noise Record
19551955ALLALLBOLAFFirst production SP
11111111ALLALLEOLAFLast Production Shot Point
11051105ALLALLNoise RecordAFEOL Noise Record
11051105ALLALLGun disabledAFALL Guns Disabled for EOL Noise Record
834834ALLALLRun-Out SPAFLast Run-Out Shot Point



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: 0088, Line name: GAP07B1744P088, Seismic datatype(s): AF - Locked date: 22-Apr-2007 14:33:16
GENERATED Sunday, April 22, 2007 5:03:49 PM GMT+00:00