ACQUISITION REPORT

Locked date: 10-Apr-2007 03:08:22


Sequence: 0009, Line name: GAP07B1072P009, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1072P009
Preplot Line Name1072
Direction17.0°
Chargeable Line Length22162.5m
SOL Time (utc)04:22:53 06-Apr-2007
EOL Time (utc)06:57:54 06-Apr-2007

Attributes
Wind Speed / Direction16.0 / SE[knots]
Swell Height / Direction2.5 / SSE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.934.2[knots]
Water Depth101.0307.0[meters]
Feather Angle-0.8-3.8[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise10.299.7[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)760 - 789 760 - 789 03:50:03 - 03:53:51 
FSP Start of Line790 790 04:22:53 06-Apr-2007 
MSP(midnight sp)   
LSP End of Line2201 2201 06:57:54 06-Apr-2007
EOL Dummy Record(s)2202 - 2211 2202 - 2211 06:58:04 - 06:59:19 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0790-1019790 - 101903:53:59 - 04:22:47Unknown16UnknownShooting Run-in Sp's at Client's request
1020-22011020 - 220104:22:54 - 06:57:55Prime16ValidProduction Sp's.

Positioning remark 
3:50 13:50 760 FDSP

3:53 13:53 790 SOL/First SP- Shooting on runin at client's request

4:22 14:22 1020 First Preplot SP DC 30m F/A 0.8W Depth 135m

6:43 16:43 2094 Last Preplot SP

6:57 16:57 2201 EOL/Last SP
DC 30m F/A 3.8W Depth 309m

6:59 16:59 2211 LDSP


Acquisition remark 
Sp. 760 @ 13:46 Shooting Run-in Sp's.
Sp. 763 ................ BOL Noise Record. Bend in cables.
Sp. 1020 @ 04:22 BOL
Sp. 2201 @ 06:57 EOL
Sp. 2203 ................ EOL Noise Record.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1267760 -  1609760 -  16098501  
12681610 -  16671610 -  1667582  
12691673 -  22111673 -  22115391  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5267760 -  1609760 -  16098504  
52681610 -  16671610 -  1667585  
52691673 -  22111673 -  22115394  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL330Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Noisy Trace(s)AFNoisy trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4222Noisy Trace(s)AFNoisy trace(s)
ALLALL4223Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3297Noisy Trace(s)AFNoisy trace(s)
ALLALL6133Noisy Trace(s)AFNoisy trace(s)
ALLALL8319Noisy Trace(s)AFNoisy trace(s)
11331133ALLALLIncomplete external headerAFBlock TRIGUN missing
13361336ALLALLIncomplete external headerAFBlock TRIGUN missing
16211621ALLALLIncomplete external headerAFBlock TRIGUN missing
1668-1672ALLALLMissing FilesAFFiles not recorded by recording system. RC Reset
16741674ALLALLIncomplete external headerAFBlock TRIGUN missing
17471747ALLALLIncomplete external headerAFBlock TRIGUN missing
20162016ALLALLIncomplete external headerAFBlock TRIGUN missing
21242124ALLALLIncomplete 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
ALLALL6159Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL4190Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL7194Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
763763ALLALLNoise RecordAFSOL Noise Record. Bend in cables
22032203ALLALLNoise 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: 0009, Line name: GAP07B1072P009, Seismic datatype(s): AF - Locked date: 10-Apr-2007 03:08:22
GENERATED Tuesday, April 10, 2007 3:11:03 AM GMT+00:00