ACQUISITION REPORT

Locked date: 14-Apr-2007 17:12:54


Sequence: 0047, Line name: GAP07B1792P047, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1792P047
Preplot Line Name1792
Direction197.0°
Chargeable Line Length39018.75m
SOL Time (utc)11:37:44 13-Apr-2007
EOL Time (utc)16:51:05 13-Apr-2007

Attributes
Wind Speed / Direction23.0 / E[knots]
Swell Height / Direction2.0 / SE[meters]
Propeller Speed120[avg rpm]
Propeller Pitch60[avg %]

  SOL EOL 
Bottom Speed4.94.98[knots]
Water Depth2412.0813.0[meters]
Feather Angle0.0-2.8[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise6.517.07[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)3235 - 3206 3235 - 3206 11:34:03 - 11:37:38 
FSP Start of Line3205 3205 11:37:44 13-Apr-2007 
MSP(midnight sp)   
LSP End of Line695 695 16:51:05 13-Apr-2007
EOL Dummy Record(s)694 - 685 694 - 685 16:51:20 - 16:54:09 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11253205 - 112511:37:45 - 15:53:12Prime16ValidProduction Shots
1120-06951120 - 69515:53:49 - 16:51:06Unknown16UnknownShooting on Run-out d/t Client's Request

Positioning remark 
P190 Made for SP 3205-695. Line good

Acquisition remark 
Shooting on run out


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13513235 -  23863235 -  23868502  
13522385 -  15362385 -  15368503  
13531535 -  6861535 -  6868501  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53513235 -  23863235 -  23868505  
53522385 -  15362385 -  15368506  
53531535 -  6861535 -  6868504  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
1124-11211124-1121ALLALLGun disabledAFNTBP. Guns disabled for noise records.
ALLALL120-21Spiking AF TracesAFSpiking AF trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
29582958ALLALLIncomplete external headerAFBlock TRIGUN missing
29132913ALLALLIncomplete external headerAFBlock TRIGUN missing
27912791ALLALLIncomplete external headerAFBlock TRIGUN missing
22462246ALLALLIncomplete external headerAFBlock TRIGUN missing
21272127ALLALLIncomplete external headerAFBlock TRIGUN missing
20432043ALLALLIncomplete external headerAFBlock TRIGUN missing
17221722ALLALLIncomplete external headerAFBlock TRIGUN missing
14171417ALLALLIncomplete external headerAFBlock TRIGUN missing
14091409ALLALLIncomplete external headerAFBlock TRIGUN missing
13441344ALLALLIncomplete external headerAFBlock TRIGUN missing
11291129ALLALLIncomplete external headerAFBlock TRIGUN missing
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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
32303230ALLALLNoise RecordAFSOL Noise Record.
32053205ALLALLBOLAFFirst Production Shotpoint.
11251125ALLALLEOLAFLast Production Shot Point
11231123ALLALLNoise RecordAFEOL Noise Record
695695ALLALLLSPAFLSP shooting on run out



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: 0047, Line name: GAP07B1792P047, Seismic datatype(s): AF - Locked date: 14-Apr-2007 17:12:54
GENERATED Saturday, April 14, 2007 5:14:20 PM GMT+00:00