ACQUISITION REPORT

Locked date: 10-Apr-2007 03:08:26


Sequence: 0019, Line name: GAP07B1152P019, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1152P019
Preplot Line Name1152
Direction17.0°
Chargeable Line Length21712.5m
SOL Time (utc)03:08:55 08-Apr-2007
EOL Time (utc)06:13:29 08-Apr-2007

Attributes
Wind Speed / Direction8.0 / NNE[knots]
Swell Height / Direction1.5 / E[meters]
Propeller Speed126[avg rpm]
Propeller Pitch65[avg %]

  SOL EOL 
Bottom Speed4.474.7[knots]
Water Depth0.0355.0[meters]
Feather Angle5.7-4.8[deg]
Sources Volume s1,s2 ..3147, 31473157, 3147[cu inch]
Background Noise6.196.3[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)784 - 813 784 - 813 03:04:41 - 03:08:33 
FSP Start of Line814 814 03:08:55 08-Apr-2007 
MSP(midnight sp)   
LSP End of Line2201 2201 06:13:29 08-Apr-2007
EOL Dummy Record(s)2202 - 2211 2202 - 2211 06:13:38 - 06:14:46 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0814-1043814 - 104303:08:41 - 03:39:47Unknown16UnknownShooting on runin on Clients request
1044-22011044 - 220103:39:56 - 06:13:30Prime16ValidBOL-EOL

Positioning remark 
3:04 13:04 784 FDSP

3:08 13:08 814 SOL/First SP- Shooting on runin at client's request
3:39 13:39 1044 First Preplot SP
DC -5m F/A 5.7E Depth 127m

6:00 16:00 2094 Last Preplot SP

6:13 16:13 2201 EOL/Last SP
DC 25m F/A 4.8W Depth 336m

6:14 16:14 2211 LDSP


Acquisition remark 
SP. 814 : FDSP
SP. 815-1043 : Shooting on Run-in
SP. 1044 : FSP @ 03:39 SOL
SP. 2201 : LSP @ 06:13 EOL
SP. 2203 : EOL Noise Record


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1289784 -  1633784 -  16338503  
12901634 -  22111634 -  22115781  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5289784 -  1633784 -  16338506  
52901634 -  22111634 -  22115784  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL3296-297Noisy Trace(s)AFNoisy trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL8118Noisy Trace(s)AFNoisy trace(s)
ALLALL6128Spiking AF TracesAFSpiking AF trace(s)
ALLALL6130Spiking AF TracesAFSpiking AF trace(s)
ALLALL6131Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL3305Spiking AF TracesAFSpiking AF trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL6133Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL3309Noisy Trace(s)AFNoisy trace(s)
12941294ALLALLIncomplete external headerAFBlock TRIGUN missing
13981398ALLALLIncomplete external headerAFBlock TRIGUN missing
15181518ALLALLIncomplete external headerAFBlock TRIGUN missing
17401740ALLALLIncomplete external headerAFBlock TRIGUN missing
17421742ALLALLIncomplete external headerAFBlock TRIGUN missing
17461746ALLALLIncomplete external headerAFBlock TRIGUN missing
18071807ALLALLIncomplete external headerAFBlock TRIGUN missing
20072007ALLALLIncomplete external headerAFBlock TRIGUN missing

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8319Weak 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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
22032203ALLALLNoise 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: 0019, Line name: GAP07B1152P019, Seismic datatype(s): AF - Locked date: 10-Apr-2007 03:08:26
GENERATED Tuesday, April 10, 2007 3:11:24 AM GMT+00:00