ACQUISITION REPORT

Locked date: 19-Apr-2007 04:59:02


Sequence: 0074, Line name: GAP07B2032P074, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2032P074
Preplot Line Name2032
Direction17.0°
Chargeable Line Length29456.25m
SOL Time (utc)18:24:05 18-Apr-2007
EOL Time (utc)22:18:11 18-Apr-2007

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

  SOL EOL 
Bottom Speed4.35.0[knots]
Water Depth1501.02870.0[meters]
Feather Angle10.30.5[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.07.85[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)1043 - 1072 1043 - 1072 18:19:27 - 18:23:56 
FSP Start of Line1073 1073 18:24:05 18-Apr-2007 
MSP(midnight sp)   
LSP End of Line2873 2873 22:18:11 18-Apr-2007
EOL Dummy Record(s)2874 - 2883 2874 - 2883 22:18:19 - 22:19:24 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1073-13021073 - 130218:24:06 - 18:57:26Unknown16UnknownShooting on run in
1303-28731303 - 287318:57:35 - 22:18:12Prime16ValidProduction SPs

Positioning remark 
P190 made for SP 1073-2873. Line Good

Acquisition remark 
Shooting on Run-in


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14091043 -  10491043 -  104972 Dummy shots - No valid data. No EOF mark.
14101050 -  18991050 -  18998503  
14111900 -  27491900 -  27498501  
14122750 -  28832750 -  28831342  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54091043 -  10551043 -  1055135  
54101056 -  18991056 -  18998446  
54111900 -  27491900 -  27498504  
54122750 -  28832750 -  28831345  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8292Spiking AF TracesAFSpiking AF trace(s)
10801080ALLALLGun disabledAFAll Guns disabled.
13001300ALLALLGun disabledAFAll Guns disabled.
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL321Spiking AF TracesAFSpiking AF trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy 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
ALLALL8225Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
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
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
13481348ALLALLIncomplete external headerAFBlock TRIGUN missing
14791479ALLALLIncomplete external headerAFBlock TRIGUN missing
19361936ALLALLIncomplete external headerAFBlock TRIGUN missing
24172417ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
10731073ALLALLFSPAFShooting on run in
13001300ALLALLNoise RecordAFSOL Noise Record
13031303ALLALLBOLAFFirst production SP
28732873ALLALLEOLAFLast production SP
28772877ALLALLNoise 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: 0074, Line name: GAP07B2032P074, Seismic datatype(s): AF - Locked date: 19-Apr-2007 04:59:02
GENERATED Thursday, April 19, 2007 4:59:49 AM GMT+00:00