ACQUISITION REPORT

Locked date: 22-Apr-2007 17:01:29


Sequence: 0090, Line name: GAP07B1760P090, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1760P090
Preplot Line Name1760
Direction197.0°
Chargeable Line Length15731.25m
SOL Time (utc)00:41:55 22-Apr-2007
EOL Time (utc)03:17:21 22-Apr-2007

Attributes
Wind Speed / Direction20.0 / SSE[knots]
Swell Height / Direction0.5 / SSE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.794.3[knots]
Water Depth2014.50.0[meters]
Feather Angle1.91.1[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise5.840.0[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)4243 - 1955 4242 - 1954 03:19:23 - 00:40:56 
FSP Start of Line1954 1953 00:41:55 22-Apr-2007 
MSP(midnight sp)   
LSP End of Line725 724 03:17:21 22-Apr-2007
EOL Dummy Record(s)724 - 715 723 - 714 03:17:40 - 03:19:08 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1954-11161953 - 111500:41:04 - 02:25:37Prime16ValidProduction Shotpoints
1115-07251114 - 72402:25:45 - 03:17:31Unknown16UnknownRun-out Shotpoints

Positioning remark 
Line ok

Acquisition remark 
Shooting on run out
No EOL Noise record.



Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14471984 -  11351983 -  11348501  SP & File number out of sync.
14481134 -  7251133 -  7244202  SP & File number out of sync.

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54471984 -  11351983 -  11348504  SP & File number out of sync.
54481134 -  7251133 -  7244205  SP & File number out of sync.


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
11771176ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL170, 106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL8141Spiking AF TracesAFSpiking AF trace(s)
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL8220Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL6259Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
13811380ALLALLIncomplete external headerAFBlock TRIGUN missing
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
ALLALL8225Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8230Weak 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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
19801979ALLALLNoise RecordAFSOL Noise Record
19541953ALLALLEOLAFFirst Production Shot Point
11161115ALLALLEOLAFLast Production Shotpoint
725724ALLALLRun-outAFLast Run-out Shotpoint



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: 0090, Line name: GAP07B1760P090, Seismic datatype(s): AF - Locked date: 22-Apr-2007 17:01:29
GENERATED Sunday, April 22, 2007 5:03:47 PM GMT+00:00