ACQUISITION REPORT

Locked date: 10-Apr-2007 15:09:19


Sequence: 0025, Line name: GAP07B1200P025, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1200P025
Preplot Line Name1200
Direction17.0°
Chargeable Line Length21431.25m
SOL Time (utc)06:22:40 09-Apr-2007
EOL Time (utc)08:49:50 09-Apr-2007

Attributes
Wind Speed / Direction9.0 / N[knots]
Swell Height / Direction1.5 / ENE[meters]
Propeller Speed120[avg rpm]
Propeller Pitch60[avg %]

  SOL EOL 
Bottom Speed4.614.4[knots]
Water Depth159.6370.0[meters]
Feather Angle3.4-3.5[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise10.55.24[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)799 - 827 799 - 827 05:48:49 - 05:52:23 
FSP Start of Line828 828 06:22:40 09-Apr-2007 
MSP(midnight sp)   
LSP End of Line2200 2200 08:49:50 09-Apr-2007
EOL Dummy Record(s)2201 - 2210 2201 - 2210 08:49:59 - 08:51:13 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
0828-1057828 - 105705:52:31 - 06:22:33Prime16UnknownShooting on Run-in
1058-22001058 - 220006:22:41 - 08:49:50Prime16Valid 

Positioning remark 
5:48 15:48 798 FDSP

5:52 15:52 828 FSP/SOL Shooting on runin at client's request
6:22 16:22 1058 FPPSP
DC -11m F/A 3.4E Depth 154m

8:35 18:35 2093 LPPSP

8:49 18:49 2200 LFFSP/EOL - Shooting on runout on client's request DC 20m F/A 3.5W Depth 373m

8:51 18:51 2210 LDSP

P190 made for SP 828-2200, line Ok

Acquisition remark 
Sp. 800 .......... SOL Noise record.
Sp. 828-1057 Run-in Shotpoints.
Sp. 1058 ......... BOL/FSP. @ 06:22
Sp. 2200 ......... EOL/LSP. @ 08:49
Sp. 2202 ......... EOL Noise record.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
1304799 -  1648799 -  16488503  
13051649 -  22101649 -  22105621  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
5304799 -  1648799 -  16488506  
53051649 -  22101649 -  22105624  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy 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)
ALLALL6133Spiking AF TracesAFSpiking AF trace(s)
ALLALL6135Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL2161Noisy Trace(s)AFNoisy trace(s)
ALLALL4190Dead trace(s)AFAF traces dead
ALLALL4222Noisy Trace(s)AFNoisy trace(s)
ALLALL4223Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy 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)
10801080ALLALLIncomplete external headerAFBlock TRIGUN missing
11851185ALLALLIncomplete external headerAFBlock TRIGUN missing
13061306ALLALLIncomplete external headerAFBlock TRIACQ missing
13071307ALLALLIncomplete external headerAFBlock TRIACQ missing
14881488ALLALLIncomplete external headerAFBlock TRIGUN missing
16211621ALLALLIncomplete external headerAFBlock TRIGUN missing
17821782ALLALLIncomplete external headerAFBlock TRIGUN missing
17831783ALLALLIncomplete external headerAFBlock TRIACQ missing
20912091ALLALLIncomplete external headerAFBlock TRIGUN missing

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL71Weak 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
800800ALLALLNoise RecordAFSOL Noise Record
22022202ALLALLNoise 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: 0025, Line name: GAP07B1200P025, Seismic datatype(s): AF - Locked date: 10-Apr-2007 15:09:19
GENERATED Tuesday, April 10, 2007 3:09:55 PM GMT+00:00