ACQUISITION REPORT

Locked date: 10-Apr-2007 03:08:27


Sequence: 0021, Line name: GAP07B1168P021, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1168P021
Preplot Line Name1168
Direction17.0°
Chargeable Line Length21637.5m
SOL Time (utc)12:18:53 08-Apr-2007
EOL Time (utc)15:13:11 08-Apr-2007

Attributes
Wind Speed / Direction20.0 / NE[knots]
Swell Height / Direction1.5 / NE[meters]
Propeller Speed125[avg rpm]
Propeller Pitch65[avg %]

  SOL EOL 
Bottom Speed5.04.74[knots]
Water Depth148.0350.0[meters]
Feather Angle-3.4-5.9[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.06.25[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)788 - 829 788 - 829 12:13:11 - 12:18:17 
FSP Start of Line830 830 12:18:53 08-Apr-2007 
MSP(midnight sp)   
LSP End of Line2201 2201 15:13:11 08-Apr-2007
EOL Dummy Record(s)2202 - 2211 2202 - 2211 15:13:20 - 15:14:29 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0830-1047830 - 104712:18:25 - 12:48:35Unknown16UnknownShooting on Run-in at Client's Request
1048-22011048 - 220112:48:43 - 15:13:12Prime16ValidProduction Sp's

Positioning remark 
12:13 22:13 788 FDSP

12:18 22:18 830 SOL/First Good SP- Shooting on runin at client's request

12:48 22:48 1048 First Preplot SP
DC -12m F/A 3.4W Depth 130m


Acquisition remark 
SP. 788 : FDSP
No SOL Noise Record
SP. 830-1047 : Shooting on Run-in
SP. 1048 : FSP @ 12:48 SOL
SP. 2201 : LSP @ 15:13 EOL
SP. 2205 : EOL Noise Record


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1296788 -  1637788 -  16378501  
12971638 -  22111638 -  22115742  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5296788 -  1637788 -  16378504  
52971638 -  22111638 -  22115745  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6305Spiking AF TracesAFSpiking AF trace(s)
ALLALL3296-297Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3305Spiking AF TracesAFSpiking AF trace(s)
15491549ALLALLIncomplete external headerAFBlock TRIGUN missing
21482148ALLALLIncomplete external headerAFBlock TRIGUN missing

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
ALLALL8292Weak 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
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: 0021, Line name: GAP07B1168P021, Seismic datatype(s): AF - Locked date: 10-Apr-2007 03:08:27
GENERATED Tuesday, April 10, 2007 3:11:44 AM GMT+00:00