ACQUISITION REPORT

Locked date: 12-Apr-2007 20:59:10


Sequence: 0036, Line name: GAP07B1584P036, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1584P036
Preplot Line Name1584
Direction197.0°
Chargeable Line Length16818.75m
SOL Time (utc)06:39:34 11-Apr-2007
EOL Time (utc)09:16:04 11-Apr-2007

Attributes
Wind Speed / Direction18.0 / S[knots]
Swell Height / Direction3.0 / S[meters]
Propeller Speed126[avg rpm]
Propeller Pitch60[avg %]

  SOL EOL 
Bottom Speed4.84.8[knots]
Water Depth1470.0396.0[meters]
Feather Angle6.55.4[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise16.20.0[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)1990 - 1961 1989 - 1960 06:35:51 - 06:39:27 
FSP Start of Line1960 1959 06:39:34 11-Apr-2007 
MSP(midnight sp)  00:00:00 00-???-00
LSP End of Line731 730 09:16:04 11-Apr-2007
EOL Dummy Record(s)730 - 718 729 - 717 09:17:02 - 09:19:10 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1960-10641959 - 106306:39:35 - 08:30:04Prime16ValidProduction Shots
1063-07311062 - 73008:30:12 - 09:16:51Unknown16UnknownRun-out Sp's

Positioning remark 
Line ok

Acquisition remark 

Note Sp. & File numbers are out of sync. by (1).
Intermittant random swell noise on records due to sea state. 10% of traces @ 20-30uB.
SOL Noise Record. High result d/t sea state.
No EOL Noise Record.



Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13291990 -  11411989 -  11408501  Note: Sp.& File numbers not in sync.
13301140 -  7181139 -  7174232  Note: Sp & File numbers not in sync.

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53291990 -  11411989 -  11408504  
53301140 -  7181139 -  7174235  


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
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3296-297Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Noisy 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
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
19881987ALLALLNoise RecordAFSOL Noise Record
19601959ALLALLBOLAFFirst Production SP.
10641063ALLALLEOLAFLast Production SP.
731730ALLALLRun-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: 0036, Line name: GAP07B1584P036, Seismic datatype(s): AF - Locked date: 12-Apr-2007 20:59:10
GENERATED Thursday, April 12, 2007 9:01:13 PM GMT+00:00