ACQUISITION REPORT

Locked date: 23-Apr-2007 17:22:52


Sequence: 0093, Line name: GAP07B1168J093, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1168J093
Preplot Line Name1168
Direction17.0°
Chargeable Line Length15037.5m
SOL Time (utc)15:10:19 22-Apr-2007
EOL Time (utc)16:57:21 22-Apr-2007

Attributes
Wind Speed / Direction22.0 / SSE[knots]
Swell Height / Direction2.5 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.814.0[knots]
Water Depth5.24361.0[meters]
Feather Angle6.7-7.1[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise6.098.63[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)1370 - 1399 1370 - 1399 15:06:31 - 15:10:13 
FSP Start of Line1400 1400 15:10:19 22-Apr-2007 
MSP(midnight sp)   
LSP End of Line2201 2201 16:57:21 22-Apr-2007
EOL Dummy Record(s)2202 - 2211 2202 - 2211 16:57:30 - 16:58:51 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1400-22011400 - 220115:10:20 - 16:57:22Infill16Valid 

Positioning remark 
P190 made for SP 1400-2201. Line is good

Acquisition remark 
Random intermittent breakout d/t sea state.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14531370 -  22111370 -  22118421  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54531370 -  22111370 -  22118425  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL1106-107Noisy 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)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL4230Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy 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
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
ALLALL8292Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
15061506ALLALLIncomplete external headerAFBlock TRIGUN missing
17221722ALLALLIncomplete external headerAFBlock TRIGUN missing
21152115ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
13751375ALLALLNoise RecordAFSOL Noise Record
14001400ALLALLSOLAFFirst Production Shot Point
22012201ALLALLEOLAFLast Production Shot Point
22062206ALLALLNoise 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: 0093, Line name: GAP07B1168J093, Seismic datatype(s): AF - Locked date: 23-Apr-2007 17:22:52
GENERATED Monday, April 23, 2007 5:23:11 PM GMT+00:00