ACQUISITION REPORT

Locked date: 21-Apr-2007 05:40:24


Sequence: 0083, Line name: GAP07B1664J083, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1664J083
Preplot Line Name1664
Direction197.0°
Chargeable Line Length16312.5m
SOL Time (utc)18:15:31 20-Apr-2007
EOL Time (utc)20:04:32 20-Apr-2007

Attributes
Wind Speed / Direction8.0 / E[knots]
Swell Height / Direction1.5 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.80.0[knots]
Water Depth1794.0547.0[meters]
Feather Angle3.1-9.31[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise4.215.31[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)1987 - 1958 1987 - 1958 18:11:44 - 18:15:24 
FSP Start of Line1957 1957 18:15:31 20-Apr-2007 
MSP(midnight sp)   
LSP End of Line1088 1088 20:04:32 20-Apr-2007
EOL Dummy Record(s)1087 - 1078 1087 - 1078 20:04:41 - 20:05:51 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1957-10881957 - 108818:15:32 - 20:04:33Infill16Valid 

Positioning remark 
P190 made for SP 1957-1088. Line good

Acquisition remark 
 


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14321987 -  11381987 -  11388501  
14331137 -  10781137 -  1078602  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54321987 -  11381987 -  11388504  
54331137 -  10781137 -  1078605  


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)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Spiking AF TracesAFSpiking AF trace(s)
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8220Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8224-225Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL1274-275Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
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
19411941ALLALLIncomplete external headerAFBlock TRIGUN missing
15051505ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL8230-231Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
19851985ALLALLNoise RecordAFSOL Noise Record
19571957ALLALLSOLAFFirst Production Shot Point
10881088ALLALLEOLAFLast Production Shot Point
10851085ALLALLNoise 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: 0083, Line name: GAP07B1664J083, Seismic datatype(s): AF - Locked date: 21-Apr-2007 05:40:24
GENERATED Saturday, April 21, 2007 5:40:56 AM GMT+00:00