ACQUISITION REPORT

Locked date: 17-Apr-2007 18:55:11


Sequence: 0066, Line name: GAP07B2000P066, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2000P066
Preplot Line Name2000
Direction17.0°
Chargeable Line Length32212.5m
SOL Time (utc)23:02:35 16-Apr-2007
EOL Time (utc)03:44:28 17-Apr-2007

Attributes
Wind Speed / Direction7.0 / N[knots]
Swell Height / Direction2.0 / E[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.24.5[knots]
Water Depth1577.02468.0[meters]
Feather Angle-5.6-0.2[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise7.965.84[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)1034 - 1063 1034 - 1063 22:58:02 - 23:02:17 
FSP Start of Line1064 1064 23:02:35 16-Apr-2007 
MSP(midnight sp)1459 1459 23:59:52 16-Apr-2007
LSP End of Line3011 3011 03:44:28 17-Apr-2007
EOL Dummy Record(s)3012 - 3021 3012 - 3021 03:44:37 - 03:45:50 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1064-12931064 - 129323:02:26 - 23:36:28Unknown16UnknownRun-in Sp's
1294-30111294 - 301123:36:36 - 03:44:29Prime16ValidProduction Sp's

Positioning remark 
S007 compass leakage trace edit 57..320 sp's 1780-2070
SP 1270-1271 Noise strip
Line ok

Acquisition remark 
Shooting on Run-in


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1389976 -  1882976 -  18828503 DNP File 976. First good file 1034 to 1882.
13901883 -  27321883 -  27328501  
13912733 -  30212733 -  30212892  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5389976 -  1882976 -  18828506 DNP File 976. First good file 1034 to 1882.
53901883 -  27321883 -  27328504  
53912733 -  30212733 -  30212895  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Noisy Trace(s)AFNoisy trace(s)
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3271Spiking AF TracesAFSpiking AF trace(s)
976ALLALLDNPAFDNP Sp 976. Sp from previous Seq. Dummy file.
1270-12711270-1271ALLALLALL Guns disabledAFALL Guns Disabled for SOL Noise Record
22522252ALLALLIncomplete external headerAFBlock TRIGUN missing
22732273ALLALLIncomplete external headerAFBlock TRIGUN missing
23832383ALLALLIncomplete external headerAFBlock TRIGUN missing
24772477ALLALLIncomplete external headerAFBlock TRIGUN missing
27542754ALLALLIncomplete external headerAFBlock TRIGUN missing
28232823ALLALLIncomplete 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
ALLALL7194Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL6289Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
13051305ALLALLIncomplete external headerAFBlock TRIGUN missing
14011401ALLALLIncomplete external headerAFBlock TRIGUN missing
18301830ALLALLIncomplete external headerAFBlock TRIGUN missing
20502050ALLALLIncomplete external headerAFBlock TRIGUN missing
20562056ALLALLIncomplete external headerAFBlock TRIGUN missing
21732173ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
10641064ALLALLRun-In Shot PointAFFirst Run-In Shot Point
12701270ALLALLNoise RecordAFSOL Noise Record
12941294ALLALLSOLAFFirst Production Shot Point
30113011ALLALLEOLAFLast Production SP.
30143014ALLALLNoise 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: 0066, Line name: GAP07B2000P066, Seismic datatype(s): AF - Locked date: 17-Apr-2007 18:55:11
GENERATED Tuesday, April 17, 2007 6:55:55 PM GMT+00:00