ACQUISITION REPORT

Locked date: 12-Apr-2007 20:59:34


Sequence: 0041, Line name: GAP07B1600P041, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1600P041
Preplot Line Name1600
Direction197.0°
Chargeable Line Length16725.0m
SOL Time (utc)01:13:10 12-Apr-2007
EOL Time (utc)03:58:13 12-Apr-2007

Attributes
Wind Speed / Direction8.0 / WSW[knots]
Swell Height / Direction1.0 / SE[meters]
Propeller Speed126[avg rpm]
Propeller Pitch65[avg %]

  SOL EOL 
Bottom Speed5.04.5[knots]
Water Depth1520.0370.0[meters]
Feather Angle6.71.3[deg]
Sources Volume s1,s2 ..3147, 28973147, 2897[cu inch]
Background Noise6.520.0[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)4271 - 1961 4271 - 1961 03:59:16 - 01:13:04 
FSP Start of Line1960 1960 01:13:10 12-Apr-2007 
MSP(midnight sp)   
LSP End of Line700 700 03:58:13 12-Apr-2007
EOL Dummy Record(s)699 - 696 699 - 696 03:58:33 - 03:59:02 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1960-10691960 - 106901:13:11 - 03:05:14Prime16ValidProduction Shots
1068-07001068 - 70003:05:22 - 03:58:24Unknown16UnknownShooting on Run-out Sp's

Positioning remark 
Line ok

Acquisition remark 
Shooting on Run-out Sp's.
No EOL Noise record.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13361990 -  11411990 -  11418501  
13371140 -  7001140 -  7004562  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53361990 -  11411990 -  11418504  
53371140 -  7001140 -  7004565  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL698Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8258Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3296Noisy Trace(s)AFNoisy trace(s)
ALLALL3297Noisy Trace(s)AFNoisy trace(s)
ALLALL3305Noisy Trace(s)AFNoisy trace(s)
ALLALL8319Dead trace(s)AFAF traces dead
13541354ALLALLIncomplete external headerAFBlock TRIGUN missing
11211121ALLALLIncomplete external headerAFBlock TRIGUN missing
ALLALL8211-212Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL6226Noisy Trace(s)AFNoisy trace(s)
ALLALL4230Spiking 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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
19851985ALLALLNoise RecordAFSOL Noise Record
19601960ALLALLBOLAFFirst Production SP
10691069ALLALLEOLAFLast Production Sp.
700700ALLALLRun-out Sp.AFLast Run-out Sp.



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: 0041, Line name: GAP07B1600P041, Seismic datatype(s): AF - Locked date: 12-Apr-2007 20:59:34
GENERATED Thursday, April 12, 2007 9:00:54 PM GMT+00:00