ACQUISITION REPORT

Locked date: 12-Apr-2007 20:59:33


Sequence: 0038, Line name: GAP07B1440A038, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1440A038
Preplot Line Name1440
Direction197.0°
Chargeable Line Length4668.75m
SOL Time (utc)16:04:28 11-Apr-2007
EOL Time (utc)16:37:34 11-Apr-2007

Attributes
Wind Speed / Direction8.0 / NE[knots]
Swell Height / Direction1.5 / NE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.64.68[knots]
Water Depth935.01589.0[meters]
Feather Angle-6.40.0[deg]
Sources Volume s1,s2 ..3147, 28973147, 2897[cu inch]
Background Noise6.796.62[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)2122 - 2093 2122 - 2093 16:00:19 - 16:04:20 
FSP Start of Line2092 2092 16:04:28 11-Apr-2007 
MSP(midnight sp)   
LSP End of Line1844 1844 16:37:34 11-Apr-2007
EOL Dummy Record(s)1843 - 1834 1843 - 1834 16:37:42 - 16:38:52 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
2092-18442092 - 184416:04:29 - 16:37:34Reshoot16ValidProduction Shots

Positioning remark 
P190 made for SP 2092-1844 (Reshoot of seq018)
Line Ok

Acquisition remark 
Guns volume at SOL: S1-3147 cu.ins, S2-2897 cu.ins.
Guns 4-4, 4-4 are disabled from SOL - EOL d/t air leak causing gun to M/F


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13332122 -  18342122 -  18342891  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53332122 -  18342122 -  18342894  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL6130-131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135-136Spiking AF TracesAFSpiking AF trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL2161Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
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
ALLALL6159Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL4190Weak 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
ALLALL8292Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
21202120ALLALLNoise RecordAFSOL Noise Record
2092-18432092-1843ALLALLGun disabledAFTD Gun 4-3. Source volume at shot 2092 : 2897 cu.in.
2092-18432092-1843ALLALLGun disabledAFTD Gun 4-4. Source volume at shot 2092 : 2897 cu.in.
20922092ALLALLPositioningAFFirst Production Shot Point
18531853ALLALLPositioningAFFirst Overlap Shot Point
18441844ALLALLPositioningAFLast Production Shot Point
18401840ALLALLNoise 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: 0038, Line name: GAP07B1440A038, Seismic datatype(s): AF - Locked date: 12-Apr-2007 20:59:33
GENERATED Thursday, April 12, 2007 9:00:34 PM GMT+00:00