ACQUISITION REPORT

Locked date: 13-Apr-2007 20:50:33


Sequence: 0046, Line name: GAP07B1936P046, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1936P046
Preplot Line Name1936
Direction17.0°
Chargeable Line Length37762.5m
SOL Time (utc)04:45:02 13-Apr-2007
EOL Time (utc)08:55:55 13-Apr-2007

Attributes
Wind Speed / Direction14.0 / ENE[knots]
Swell Height / Direction2.0 / SE[meters]
Propeller Speed126[avg rpm]
Propeller Pitch70[avg %]

  SOL EOL 
Bottom Speed4.94.6[knots]
Water Depth1434.02586.0[meters]
Feather Angle5.9-2.3[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.05.31[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)   
FSP Start of Line1275  04:45:02 13-Apr-2007 
MSP(midnight sp)   
LSP End of Line3288 3288 08:55:55 13-Apr-2007
EOL Dummy Record(s)3289 - 3298 3289 - 3298  
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1275-1345unknown - 1345unknown - 04:44:54Unknown0ScratchedMissed d/t Navigation problem
1346-32881346 - 328804:45:03 - 08:55:56Prime16ValidProduction.

Positioning remark 
FGSP 1346 d/t Trinav crash
Line ok

Acquisition remark 
No Run-in Shotpoint to Line.
FGSP 1346.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13481331 -  21811331 -  21818502  
13492182 -  30312182 -  30318503  
13503032 -  32983032 -  32982671  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53481331 -  21811331 -  21818505  
53492182 -  30312182 -  30318506  
53503032 -  32983032 -  32982674  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL749Noise RecordAFNoise Record
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Noise RecordAFNoise Record
ALLALL8271Noise RecordAFNoise Record
1275-13451345ALLALLMSPAFNavigation problem
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
14841484ALLALLIncomplete external headerAFBlock TRIGUN missing
16871687ALLALLIncomplete external headerAFBlock TRIGUN missing
17851785ALLALLIncomplete external headerAFBlock TRIGUN missing
22492249ALLALLIncomplete external headerAFBlock TRIACQ missing
22502250ALLALLIncomplete external headerAFBlock TRIACQ missing
23932393ALLALLIncomplete external headerAFBlock TRIGUN missing
24442444ALLALLIncomplete external headerAFBlock TRIGUN missing
26162616ALLALLIncomplete external headerAFBlock TRIGUN missing
29982998ALLALLIncomplete external headerAFBlock TRIGUN missing

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
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
13461346ALLALLFGSPAFFGSP d/t Navigation problem
32883288ALLALLEOLAFLast Production Shotpoint.
32903290ALLALLNoise 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: 0046, Line name: GAP07B1936P046, Seismic datatype(s): AF - Locked date: 13-Apr-2007 20:50:33
GENERATED Friday, April 13, 2007 8:51:52 PM GMT+00:00