ACQUISITION REPORT

Locked date: 20-Apr-2007 00:41:48


Sequence: 0076, Line name: GAP07B2176A076, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2176A076
Preplot Line Name2176
Direction17.0°
Chargeable Line Length17025.0m
SOL Time (utc)07:06:17 19-Apr-2007
EOL Time (utc)09:39:02 19-Apr-2007

Attributes
Wind Speed / Direction9.0 / SE[knots]
Swell Height / Direction1.0 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.34.9[knots]
Water Depth1758.02414.0[meters]
Feather Angle2.50.1[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise7.10.07[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)1085 - 1114 1085 - 1114 07:02:07 - 07:06:26 
FSP Start of Line1115 1115 07:06:17 19-Apr-2007 
MSP(midnight sp)   
LSP End of Line2252 2252 09:39:02 19-Apr-2007
EOL Dummy Record(s)2253 - 2262 2253 - 2262 09:39:11 - 09:40:17 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1115-13441115 - 134407:06:35 - 07:40:09Unknown16UnknownShooting on Run-in
1345-22521345 - 225207:40:18 - 09:39:03Prime16ValidProduction Shotpoints

Positioning remark 
Line ok

Acquisition remark 
Shooting on Run-in.
Re-shoot on Seq. 068.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14161085 -  19341085 -  19348501  
14171935 -  22621935 -  22623282  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54161085 -  19341085 -  19348504  
54171935 -  22621935 -  22623285  


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)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8258Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL8292Spiking AF TracesAFSpiking AF trace(s)
143514352264Spiking AF TracesAFSpiking AF 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
ALLALL279Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL7194Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8225Weak 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
19691969ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
10901090ALLALLNoise RecordAFSOL Noise Record
11151115ALLALLRun-inAFFirst Run-in Shotpoint
13451345ALLALLBOLAFFirst Production Shotpoint
14111411ALLALLGun not firedAFTD Gun 2-5. Source volume : 2992 cu.in.
22522252ALLALLEOLAFLast Production Shotpoint
22552255ALLALLNoise 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: 0076, Line name: GAP07B2176A076, Seismic datatype(s): AF - Locked date: 20-Apr-2007 00:41:48
GENERATED Friday, April 20, 2007 4:51:37 AM GMT+00:00