ACQUISITION REPORT

Locked date: 24-Apr-2007 18:40:07


Sequence: 0099, Line name: GAP07B1280J099, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1280J099
Preplot Line Name1280
Direction17.0°
Chargeable Line Length21000.0m
SOL Time (utc)17:50:58 23-Apr-2007
EOL Time (utc)20:30:04 23-Apr-2007

Attributes
Wind Speed / Direction15.0 / SE[knots]
Swell Height / Direction3.0 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.1463.0[knots]
Water Depth235.04.35[meters]
Feather Angle0.0-2.8[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.06.88[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)1051 - 1080 1051 - 1080 17:46:36 - 17:50:50 
FSP Start of Line1081 1081 17:50:58 23-Apr-2007 
MSP(midnight sp)   
LSP End of Line2200 2200 20:30:04 23-Apr-2007
EOL Dummy Record(s)2201 - 2210 2201 - 2210 20:30:13 - 20:31:29 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1081-22001081 - 220017:50:59 - 20:30:05Infill16ValidProduction SP

Positioning remark 
Line ok

Acquisition remark 
All cables set to 8.3m, cable depths unstable and constant breakout present.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14661051 -  19001051 -  19008503  
14671901 -  22101901 -  22103101  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54661051 -  19001051 -  19008506  
54671901 -  22101901 -  22103104  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8141, 220Spiking AF TracesAFSpiking AF trace(s)
ALLALL8267-268, 271Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL322Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL259Spiking AF TracesAFSpiking AF trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
137813781132-133Noisy Trace(s)AFNoisy trace(s)
215221527115Noisy 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
ALLALL8225, 230Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319, 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
16341634ALLALLIncomplete external headerAFBlock TRIGUN missing
18361836ALLALLIncomplete external headerAFBlock TRIGUN missing
20112011ALLALLIncomplete external headerAFBlock TRIGUN missing
21792179ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
1050ALLALLNoise RecordAFSOL Noise Record
10811081ALLALLBOLAFFirst production SP
22002200ALLALLEOLAFLast production SP
22052205ALLALLNoise 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: 0099, Line name: GAP07B1280J099, Seismic datatype(s): AF - Locked date: 24-Apr-2007 18:40:07
GENERATED Tuesday, April 24, 2007 6:40:42 PM GMT+00:00