ACQUISITION REPORT

Locked date: 20-Apr-2007 20:28:03


Sequence: 0080, Line name: GAP07B2208P080, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2208P080
Preplot Line Name2208
Direction17.0°
Chargeable Line Length14231.25m
SOL Time (utc)04:49:22 20-Apr-2007
EOL Time (utc)06:59:06 20-Apr-2007

Attributes
Wind Speed / Direction1.0 / VAR[knots]
Swell Height / Direction0.5 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.24.95[knots]
Water Depth1970.02370.0[meters]
Feather Angle-1.9-3.2[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise5.50.04[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)1095 - 1124 1095 - 1124 04:44:25 - 04:48:56 
FSP Start of Line1125 1125 04:49:22 20-Apr-2007 
MSP(midnight sp)   
LSP End of Line2113 2113 06:59:06 20-Apr-2007
EOL Dummy Record(s)2114 - 2123 2114 - 2123 06:59:15 - 07:00:21 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1125-13541125 - 135404:49:05 - 05:23:14Unknown16UnknownRun-in Shotpoints
1355-21131355 - 211305:23:23 - 06:59:07Prime16ValidProduction Shotpoints

Positioning remark 
Line ok
Speed fluctuations during line

Acquisition remark 
Shooting on Run-in.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14271095 -  19441095 -  19448501  
14281945 -  21231945 -  21231792  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54271095 -  19441095 -  19448504  
54281945 -  21231945 -  21231795  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL8220Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Spiking AF TracesAFSpiking AF 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
20202020ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
10991099ALLALLNoise RecordAFSOL Noise Record
11251125ALLALLRun-inAFFirst Run-in Shotpoint.
13551355ALLALLBOLAFFirst Production SP.
21132113ALLALLEOLAFLast Production Shotpoint.
21152115ALLALLNoise 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: 0080, Line name: GAP07B2208P080, Seismic datatype(s): AF - Locked date: 20-Apr-2007 20:28:03
GENERATED Friday, April 20, 2007 8:28:25 PM GMT+00:00