ACQUISITION REPORT

Locked date: 15-Apr-2007 05:02:32


Sequence: 0051, Line name: GAP07B1808P051, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1808P051
Preplot Line Name1808
Direction197.0°
Chargeable Line Length38925.0m
SOL Time (utc)11:04:45 14-Apr-2007
EOL Time (utc)15:21:34 14-Apr-2007

Attributes
Wind Speed / Direction10.0 / NW[knots]
Swell Height / Direction1.5 / N[meters]
Propeller Speed130[avg rpm]
Propeller Pitch70[avg %]

  SOL EOL 
Bottom Speed4.84.7[knots]
Water Depth0.0670.0[meters]
Feather Angle-3.3-3.8[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise6.544.94[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)6765 - 3206 6765 - 3206 16:12:03 - 11:04:38 
FSP Start of Line3205 3205 11:04:45 14-Apr-2007 
MSP(midnight sp)   
LSP End of Line775 775 15:21:34 14-Apr-2007
EOL Dummy Record(s)774 - 745 774 - 745 16:07:55 - 16:11:56 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11303205 - 113011:04:46 - 15:21:35Prime16ValidProduction SP
1129-07751129 - 77515:21:43 - 16:07:47Unknown16UnknownShooting on Run-out

Positioning remark 
P190 Made for SP 3205-755. Line Good

Acquisition remark 
Shooting on Run-out.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13613235 -  23863235 -  23868501  
13622385 -  15362385 -  15368502  
13631535 -  7451535 -  7458013  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53613235 -  23863235 -  23868504  
53622385 -  15362385 -  15368505  
53631535 -  7451535 -  7458016  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
1128-11271128-1127ALLALLGuns disabledAFGuns disabled for EOL noise test
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF 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
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
27152715ALLALLIncomplete external headerAFBlock TRIGUN missing
17791779ALLALLIncomplete external headerAFBlock TRIGUN missing
17071707ALLALLIncomplete external headerAFBlock TRIGUN missing
16721672ALLALLIncomplete external headerAFBlock TRIGUN missing
16581658ALLALLIncomplete external headerAFBlock TRIGUN missing
16451645ALLALLIncomplete external headerAFBlock TRIGUN missing
16431643ALLALLIncomplete external headerAFBlock TRIGUN missing
16411641ALLALLIncomplete external headerAFBlock TRIGUN missing
13071307ALLALLIncomplete external headerAFBlock TRIGUN missing
12371237ALLALLIncomplete external headerAFBlock TRIGUN missing
12271227ALLALLIncomplete external headerAFBlock TRIGUN missing

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
32323232ALLALLNoise RecordAFSOL Noise Record.
32053205ALLALLBOLAFFirst Production SP.
11301130ALLALLPositioningAFLast Production Shot Point
11281128ALLALLNoise RecordAFEOL Noise Record
755755ALLALLLSPAFLast Run out Shot Point



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: 0051, Line name: GAP07B1808P051, Seismic datatype(s): AF - Locked date: 15-Apr-2007 05:02:32
GENERATED Sunday, April 15, 2007 5:03:18 AM GMT+00:00