ACQUISITION REPORT

Locked date: 19-Apr-2007 03:48:28


Sequence: 0072, Line name: GAP07B2192P072, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2192P072
Preplot Line Name2192
Direction17.0°
Chargeable Line Length15618.75m
SOL Time (utc)10:51:46 18-Apr-2007
EOL Time (utc)12:42:24 18-Apr-2007

Attributes
Wind Speed / Direction10.0 / SW[knots]
Swell Height / Direction1.5 / NE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.534.69[knots]
Water Depth1794.02372.0[meters]
Feather Angle-1.7-2.0[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise10.426.26[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)1090 - 1119 1090 - 1119 10:15:17 - 10:19:39 
FSP Start of Line1120 1120 10:51:46 18-Apr-2007 
MSP(midnight sp)   
LSP End of Line2182 2182 12:42:24 18-Apr-2007
EOL Dummy Record(s)2183 - 2192 2183 - 2192 12:42:33 - 12:43:43 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1120-13491120 - 134910:19:48 - 10:51:38Unknown16UnknownShooting on Run-in.
1350-21821350 - 218210:51:47 - 12:42:25Prime16ValidProduction Shotpoint.

Positioning remark 
P190 Made for SP 1120-2182. Line Good

Acquisition remark 
Shooting on Run-in.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14051090 -  19391090 -  19398501  
14061940 -  21921940 -  21922532  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54051090 -  19391090 -  19398504  
54061940 -  21921940 -  21922535  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL885Spiking AF TracesAFSpiking AF trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)

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
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
13751375ALLALLIncomplete external headerAFBlock TRIGUN missing
13951395ALLALLIncomplete external headerAFBlock TRIGUN missing
17981798ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
10951095ALLALLNoise RecordAFSOL Noise Record.
11201120ALLALLRun-inAFFirst Run-in Shotpoint.
13501350ALLALLBOLAFFirst Production Shotpoint.
21822182ALLALLEOLAFLast Production Shotpoint.
21852185ALLALLNoise 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: 0072, Line name: GAP07B2192P072, Seismic datatype(s): AF - Locked date: 19-Apr-2007 03:48:28
GENERATED Thursday, April 19, 2007 3:48:50 AM GMT+00:00