ACQUISITION REPORT

Locked date: 08-Apr-2007 03:33:29


Sequence: 0001, Line name: GAP07B1008P001, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1008P001
Preplot Line Name1008
Direction17.0°
Chargeable Line Length22425.0m
SOL Time (utc)13:39:20 04-Apr-2007
EOL Time (utc)16:46:49 04-Apr-2007

Attributes
Wind Speed / Direction8.0 / SW[knots]
Swell Height / Direction0.5 / SW[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed3.54.77[knots]
Water Depth178.0328.3[meters]
Feather Angle0.00.0[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise0.05.26[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)   
FSP Start of Line875  13:39:20 04-Apr-2007 
MSP(midnight sp)   
LSP End of Line2202 2202 16:46:49 04-Apr-2007
EOL Dummy Record(s)2203 - 2213 2203 - 2213  
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0875-1052unknown - 1052unknown - 14:09:05Prime16ScratchedDummy SP
1053-22021053 - 220214:09:15 - 16:42:36Prime16ValidFGSP

Positioning remark 
P190 Generated for SP 1053-2202
BOL 1001-1052 lost d/t Nav
FGSP 1053 @ 14:09



Acquisition remark 
No BOL noise test
BOL 1001-1052 lost d/t Nav
FGSP 1053 @ 14:09
LSP 2202 @ 16:42
EOL noise test - 2205


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1250891 -  1776891 -  17768501  
12511777 -  22131777 -  22134372  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5250891 -  1776891 -  17768504  
52511777 -  22131777 -  22134375  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL3296-297Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL513Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL536Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL2224Noisy Trace(s)AFNoisy trace(s)
ALLALL3309Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Dead trace(s)AFAF traces dead
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL552Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8292Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
999-1008ALLALLMissing shot timeAFMissing shot time due to lost aimpoint
999-1008ALLALLMissing FilesAFFiles not recorded by recording system
10381038ALLALLIncomplete external headerAFBlock TRIGUN missing
10631063ALLALLIncomplete external headerAFBlock TRIGUN missing
12111211ALLALLIncomplete external headerAFBlock TRIGUN missing
12741274ALLALLIncomplete external headerAFBlock TRIGUN missing
19781978ALLALLIncomplete external headerAFBlock TRIGUN missing

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL279Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL71Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL6289Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
995ALLALLNoise RecordAFSOL Noise Record Lost
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: 0001, Line name: GAP07B1008P001, Seismic datatype(s): AF - Locked date: 08-Apr-2007 03:33:29
GENERATED Sunday, April 8, 2007 3:33:51 AM GMT+00:00