ACQUISITION REPORT

Locked date: 08-Apr-2007 03:03:56


Sequence: 0006, Line name: GAP07B1344P006, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1344P006
Preplot Line Name1344
Direction197.0°
Chargeable Line Length20643.75m
SOL Time (utc)14:00:28 05-Apr-2007
EOL Time (utc)16:19:30 05-Apr-2007

Attributes
Wind Speed / Direction25.0 / SSW[knots]
Swell Height / Direction2.5 / SW[meters]
Propeller Speed126[avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.724.96[knots]
Water Depth608.0186.2[meters]
Feather Angle3.55.8[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise15.550.0[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)2123 - 2094 2123 - 2094 13:56:33 - 14:00:20 
FSP Start of Line2093 2093 14:00:28 05-Apr-2007 
MSP(midnight sp)   
LSP End of Line572 572 16:19:30 05-Apr-2007
EOL Dummy Record(s)571 - 562 571 - 562 17:14:40 - 17:15:52 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
2093-09932093 - 99314:00:28 - 16:19:31Prime16Valid 
0992-0572992 - 57216:19:38 - 17:14:31Unknown16UnknownShooting in Run-out at Client's request

Positioning remark 
Line ok

Acquisition remark 
SP 2120 : SOL Noise Test Swell noise present
SP 2093 : First SP @ 14:00
SP 993 : Last SP @ 16:19
No EOL Noise Test d/t shooting in Runout
SP 992-572 shooting on run out


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
12602123 -  12742123 -  12748501  
12611273 -  5621273 -  5627122  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
52602123 -  12742123 -  12748504  
52611273 -  5621273 -  5627125  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
20452045ALLALLIncomplete external headerAFBlock TRIGUN missing
17461746ALLALLIncomplete external headerAFBlock TRIGUN missing
1745ALLALLMissing FileAFFile has not been recorded by recording system
14881488ALLALLIncomplete external headerAFBlock TRIGUN missing
13721372ALLALLIncomplete external headerAFBlock TRIGUN missing
13411341ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL170-71Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL279Spiking AF TracesAFSpiking AF trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL8118Spiking AF TracesAFSpiking AF trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL7194Dead trace(s)AFAF traces dead
ALLALL3271Spiking AF TracesAFSpiking AF trace(s)
ALLALL4271Spiking AF TracesAFSpiking AF trace(s)
ALLALL3296Noisy Trace(s)AFNoisy trace(s)
ALLALL8319Dead trace(s)AFAF traces dead

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
ALLALL6289Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8292Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces



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: 0006, Line name: GAP07B1344P006, Seismic datatype(s): AF - Locked date: 08-Apr-2007 03:03:56
GENERATED Sunday, April 8, 2007 3:05:07 AM GMT+00:00