ACQUISITION REPORT

Locked date: 22-Apr-2007 17:01:28


Sequence: 0091, Line name: GAP07B2064P091, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2064P091
Preplot Line Name2064
Direction17.0°
Chargeable Line Length26700.0m
SOL Time (utc)04:05:23 22-Apr-2007
EOL Time (utc)07:40:58 22-Apr-2007

Attributes
Wind Speed / Direction18.0 / S[knots]
Swell Height / Direction1.5 / SSE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.694.35[knots]
Water Depth0.02383.0[meters]
Feather Angle-1.9-2.3[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise5.645.54[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)1052 - 1081 1052 - 1081 04:01:07 - 04:05:15 
FSP Start of Line1082 1082 04:05:23 22-Apr-2007 
MSP(midnight sp)   
LSP End of Line2735 2735 07:40:58 22-Apr-2007
EOL Dummy Record(s)2736 - 2745 2736 - 2745 07:41:07 - 07:42:22 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1082-13111082 - 131104:05:23 - 04:35:33Unknown16UnknownRun-in Shotpoints
1312-27351312 - 273504:35:41 - 07:40:58Prime16Valid 

Positioning remark 
Line ok

Acquisition remark 
Shooting on Run-in.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14491052 -  19011052 -  19018503  
14501902 -  27451902 -  27458441  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54491052 -  19011052 -  19018506  
54501902 -  27451902 -  27458444  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
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)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL8141Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8220Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
15191519ALLALLIncomplete external headerAFBlock TRIGUN missing
15241524ALLALLIncomplete external headerAFBlock TRIGUN missing
15631563ALLALLIncomplete external headerAFBlock TRIGUN missing
17431743ALLALLIncomplete external headerAFBlock TRIGUN missing

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL513, 36, 52Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8292, 319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8225, 230Weak 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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
10551055ALLALLNoise RecordAFSOL Noise Record
10821082ALLALLRun-inAFFirst Run-in Shotpoint
13121312ALLALLBOLAFFirst Production shotpoint.
27352735ALLALLEOLAFLast Production shotpoint.
27372737ALLALLNoise 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: 0091, Line name: GAP07B2064P091, Seismic datatype(s): AF - Locked date: 22-Apr-2007 17:01:28
GENERATED Sunday, April 22, 2007 5:03:56 PM GMT+00:00