ACQUISITION REPORT

Locked date: 17-Apr-2007 14:50:26


Sequence: 0053, Line name: GAP07B1648P053, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1648P053
Preplot Line Name1648
Direction197.0°
Chargeable Line Length16425.0m
SOL Time (utc)22:36:45 14-Apr-2007
EOL Time (utc)00:26:08 15-Apr-2007

Attributes
Wind Speed / Direction14.0 / N[knots]
Swell Height / Direction1.0 / VAR[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.6094.6[knots]
Water Depth1728.0516.0[meters]
Feather Angle3.91.4[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise4.05.02[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)1988 - 1959 1988 - 1959 22:32:49 - 22:36:39 
FSP Start of Line1958 1958 22:36:45 14-Apr-2007 
MSP(midnight sp)1289 1289 23:59:57 14-Apr-2007
LSP End of Line1083 1083 00:26:08 15-Apr-2007
EOL Dummy Record(s)1082 - 1073 1082 - 1073 00:26:17 - 00:27:28 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1958-10831958 - 108322:36:46 - 00:26:09Prime16ValidProduction SPs

Positioning remark 
SP's 1958-1957 DNP'd d/t problem reading 1st 2sp's on P1
SP 1087-1085 noise strip
Line ok

Acquisition remark 

Sp. 1400-1150 : Wing wash on streamer 7 & 8.
SP 1958, 1957 ntbp d/t P190 issue problem




Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13661988 -  11391988 -  11398503  
13671138 -  10731138 -  1073661  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53661988 -  11391988 -  11398506  
53671138 -  10731138 -  1073664  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy 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
19851985ALLALLNoise RecordAFSOL Noise Record
19581958ALLALLBOLAFFirst Production Shot Point
10831083ALLALLEOLAFLast Production Shot Point
10821082ALLALLNoise 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: 0053, Line name: GAP07B1648P053, Seismic datatype(s): AF - Locked date: 17-Apr-2007 14:50:26
GENERATED Tuesday, April 17, 2007 2:50:46 PM GMT+00:00