ACQUISITION REPORT

Locked date: 24-Apr-2007 04:28:43


Sequence: 0098, Line name: GAP07B1536A098, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1536A098
Preplot Line Name1536
Direction197.0°
Chargeable Line Length17118.75m
SOL Time (utc)13:32:40 23-Apr-2007
EOL Time (utc)15:32:06 23-Apr-2007

Attributes
Wind Speed / Direction24.0 / SE[knots]
Swell Height / Direction3.0 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.254.93[knots]
Water Depth1223.0455.3[meters]
Feather Angle4.41.9[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise15.4810.53[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)1992 - 1963 1992 - 1963 13:28:19 - 13:32:32 
FSP Start of Line1962 1962 13:32:40 23-Apr-2007 
MSP(midnight sp)   
LSP End of Line1050 1050 15:32:06 23-Apr-2007
EOL Dummy Record(s)1049 - 1040 1049 - 1040 15:32:14 - 15:33:22 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1962-16891962 - 168913:32:41 - 14:09:46Reshoot16ValidProduction Shots
1688-16791688 - 167914:09:54 - 14:11:06Unknown16ValidOver Lap Shot Points
1678-10501678 - 105014:11:14 - 15:32:07Infill16ValidProduction Shots

Positioning remark 
P190 made for SP 1962-1050. Line Ok

Acquisition remark 
Reshoot of seq. 30. Plus Infill.
Random breakout on Streamers @ 30%. Approx. 50uB average.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14641992 -  11371992 -  11378561  
14651136 -  10401136 -  1040972  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54641992 -  11431992 -  11438504  
54651142 -  10401142 -  10401035  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8267-269Spiking AF TracesAFSpiking AF trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL554, 105-106Noisy Trace(s)AFNoisy trace(s)
ALLALL8128, 141, 220Spiking AF TracesAFSpiking AF trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL259Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3271Spiking AF TracesAFSpiking AF trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
16781678ALLALLIncomplete external headerAFBlock TRIGUN missing
15761576ALLALLIncomplete external headerAFBlock TRIGUN missing
15301530ALLALLIncomplete external headerAFBlock TRIGUN missing
13731373ALLALLIncomplete external headerAFBlock TRIGUN missing
13171317ALLALLIncomplete external headerAFBlock TRIGUN missing
12011201ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL8225, 230Weak 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
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
19621962ALLALLSOLAFFirst Reshoot SP
16891689ALLALLReshootAFLast Reshoot SP
16791679ALLALLReshootAFLast Reshoot Overlap SP
16781678ALLALLInfillAFFirst Infill SP
10501050ALLALLEOLAFLast Infill SP
10451045ALLALLNoise 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: 0098, Line name: GAP07B1536A098, Seismic datatype(s): AF - Locked date: 24-Apr-2007 04:28:43
GENERATED Tuesday, April 24, 2007 4:29:09 AM GMT+00:00