ACQUISITION REPORT

Locked date: 13-Apr-2007 20:50:33


Sequence: 0043, Line name: GAP07B1776P043, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1776P043
Preplot Line Name1776
Direction197.0°
Chargeable Line Length39093.75m
SOL Time (utc)12:28:56 12-Apr-2007
EOL Time (utc)16:51:04 12-Apr-2007

Attributes
Wind Speed / Direction8.0 / SE[knots]
Swell Height / Direction0.5 / NE[meters]
Propeller Speed125[avg rpm]
Propeller Pitch65[avg %]

  SOL EOL 
Bottom Speed4.84.7[knots]
Water Depth2402.0772.0[meters]
Feather Angle-3.00.9[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise5.896.05[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)3235 - 3206 3235 - 3206 12:25:08 - 12:28:49 
FSP Start of Line3205 3205 12:28:56 12-Apr-2007 
MSP(midnight sp)   
LSP End of Line1121 1121 16:51:04 12-Apr-2007
EOL Dummy Record(s)1120 - 1111 1120 - 1111 16:51:13 - 16:52:23 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11213205 - 112112:28:57 - 16:51:05Prime16Valid 

Positioning remark 
Line ok


Acquisition remark 
Strong multiples d/t geology.
High noise on NFH gun string 5 position 6. No autofires or drop in air pressure evident.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13413235 -  23863235 -  23868501  
13422385 -  15362385 -  15368502  
13431535 -  11111535 -  11114253  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53413235 -  23863235 -  23868504  
53422385 -  15362385 -  15368505  
53431535 -  11111535 -  11114256  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL8258Noisy Trace(s)AFNoisy trace(s)
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698SpikingAFNoisy trace(s)
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL3296Noisy Trace(s)AFNoisy trace(s)
ALLALL3297Noisy Trace(s)AFNoisy trace(s)
ALLALL3305Spiking AF TracesAFSpiking AF trace(s)
ALLALL3309Spiking 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
ALLALL6289Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
30923092ALLALLIncomplete external headerAFBlock TRIGUN missing
28342834ALLALLIncomplete external headerAFBlock TRIGUN missing
25642564ALLALLIncomplete external headerAFBlock TRIGUN missing
23842384ALLALLIncomplete external headerAFBlock TRIGUN missing
23362336ALLALLIncomplete external headerAFBlock TRIGUN missing
22792279ALLALLIncomplete external headerAFBlock TRIGUN missing
21892189ALLALLIncomplete external headerAFBlock TRIGUN missing
20382038ALLALLIncomplete external headerAFBlock TRIGUN missing
18131813ALLALLIncomplete external headerAFBlock TRIGUN missing
13651365ALLALLIncomplete external headerAFBlock TRIGUN missing
11541154ALLALLIncomplete 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.
11211121ALLALLEOLAFLast Production Shot Point
11191119ALLALLNoise 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: 0043, Line name: GAP07B1776P043, Seismic datatype(s): AF - Locked date: 13-Apr-2007 20:50:33
GENERATED Friday, April 13, 2007 8:51:54 PM GMT+00:00