ACQUISITION REPORT

Locked date: 18-Apr-2007 23:46:16


Sequence: 0020, Line name: GAP07B1456P020, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1456P020
Preplot Line Name1456
Direction197.0°
Chargeable Line Length20006.25m
SOL Time (utc)08:17:07 08-Apr-2007
EOL Time (utc)10:32:47 08-Apr-2007

Attributes
Wind Speed / Direction9.0 / NNW[knots]
Swell Height / Direction1.0 / SSE[meters]
Propeller Speed126[avg rpm]
Propeller Pitch60[avg %]

  SOL EOL 
Bottom Speed4.64.5[knots]
Water Depth905.0342.0[meters]
Feather Angle-4.8-1.1[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise0.00.0[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)2122 - 2093 2122 - 2093 08:13:17 - 08:17:01 
FSP Start of Line2092 2092 08:17:07 08-Apr-2007 
MSP(midnight sp)  00:00:00 00-???-00
LSP End of Line670 670 10:32:47 08-Apr-2007
EOL Dummy Record(s)669 - 656 669 - 656 11:20:08 - 11:22:12 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
2092-10262092 - 102608:17:08 - 10:32:48Prime16Valid 
1025-06701025 - 67010:32:55 - 11:19:58Unknown0UnknownShooting on runout at Clients request

Positioning remark 
Line ok

Acquisition remark 
SP. 2122 : FDSP
SP. 2120 : SOL Noise Record
SP. 2092 : FSP @ 08:17 SOL
SP. 1026 : LSP @ 10:32 EOL
SP. 1025-670 : Shooting on Run-out
No EOL Noise Record d/t shooting on turning



Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
12912122 -  21112122 -  2111122 Device timed out
12922110 -  12612110 -  12618503  
12931260 -  12601260 -  126011 copy of copy d/t single EOF mark
12941259 -  12161259 -  1216442  
12951215 -  6561215 -  6565603  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
52912122 -  21002122 -  2100235  
52922099 -  12612099 -  12618396  
52931260 -  12121260 -  1212494  
52941211 -  11421211 -  1142705  
52951141 -  6561141 -  6564866  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
20202020ALLALLIncomplete external headerAFBlock TRIGUN missing
18271827ALLALLIncomplete external headerAFBlock TRIGUN missing
13901390ALLALLIncomplete external headerAFBlock TRIGUN missing
1257-12581257-1258ALLALLMissing FilesAFFiles not recorded by recording system
1213-12101213-1210ALLALLMissing FilesAFFiles not recorded by recording system
1211-12141211-1214ALLALLMissing FilesAFFiles not recorded by recording system
1210-12121210-1212ALLALLMissing FilesAFFiles not recorded by recording system
12091209ALLALLMissing FileAFFile has not been recorded by recording system
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL3296-297Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL8212Noisy Trace(s)AFNoisy trace(s)
ALLALL8213Noisy Trace(s)AFNoisy trace(s)
ALLALL3305Spiking AF TracesAFSpiking AF trace(s)
ALLALL3309Spiking AF TracesAFSpiking AF trace(s)

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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
21202120ALLALLNoise RecordAFSOL 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: 0020, Line name: GAP07B1456P020, Seismic datatype(s): AF - Locked date: 18-Apr-2007 23:46:16
GENERATED Wednesday, April 18, 2007 11:46:39 PM GMT+00:00