ACQUISITION REPORT

Locked date: 22-Apr-2007 14:33:15


Sequence: 0087, Line name: GAP07B2224P087, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2224P087
Preplot Line Name2224
Direction17.0°
Chargeable Line Length12843.75m
SOL Time (utc)10:50:40 21-Apr-2007
EOL Time (utc)12:44:35 21-Apr-2007

Attributes
Wind Speed / Direction10.0 / SE[knots]
Swell Height / Direction1.0 / S[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.94.84[knots]
Water Depth1763.02364.0[meters]
Feather Angle4.30.6[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise12.794.33[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)1100 - 1129 1100 - 1129 10:46:51 - 10:50:33 
FSP Start of Line1130 1130 10:50:40 21-Apr-2007 
MSP(midnight sp)   
LSP End of Line2044 2044 12:44:35 21-Apr-2007
EOL Dummy Record(s)2045 - 2054 2045 - 2054 12:44:43 - 12:45:51 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1130-13591130 - 135910:50:40 - 11:19:26Unknown16UnknownFirst Run-in Shotpoint.
1360-20441360 - 204411:19:33 - 12:44:36Prime16ValidProduction Shotpoint.

Positioning remark 
P190 made for SP 1130-2044. Line is good

Acquisition remark 
Shooting on Run-in


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14411100 -  19491100 -  19498501  
14421950 -  20541950 -  20541052  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54411100 -  19491100 -  19498504  
54421950 -  20541950 -  20541055  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL8141, 258, 220Spiking AF TracesAFSpiking AF trace(s)
ALLALL7234-235Spiking AF TracesAFSpiking AF trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6117Spiking AF TracesAFSpiking AF trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
1365-13661365-1366ALLALLGun disabledAFNo gun data.

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
ALLALL8225, 230, 298Weak 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
15511551ALLALLIncomplete external headerAFBlock TRIGUN missing
19331933ALLALLIncomplete external headerAFBlock TRIGUN missing
19871987ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
11021102ALLALLNoise RecordAFSOL Noise Record
11301130ALLALLRun-inAFFirst Run-in Shotpoint.
13601360ALLALLBOLAFFirst Production Shotpoint.
20442044ALLALLEOLAFLast Production Shotpoint.
20472047ALLALLNoise 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: 0087, Line name: GAP07B2224P087, Seismic datatype(s): AF - Locked date: 22-Apr-2007 14:33:15
GENERATED Sunday, April 22, 2007 5:03:22 PM GMT+00:00