ACQUISITION REPORT

Locked date: 20-Apr-2007 04:51:02


Sequence: 0075, Line name: GAP07B1888P075, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1888P075
Preplot Line Name1888
Direction197.0°
Chargeable Line Length38475.0m
SOL Time (utc)01:12:03 19-Apr-2007
EOL Time (utc)05:25:03 19-Apr-2007

Attributes
Wind Speed / Direction8.0 / ENE[knots]
Swell Height / Direction2.0 / NE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.69.99[knots]
Water Depth2497.0986.0[meters]
Feather Angle5.4-2.3[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.06.06[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 01:08:21 - 01:11:57 
FSP Start of Line3205 3205 01:12:03 19-Apr-2007 
MSP(midnight sp)   
LSP End of Line1154 1154 05:25:03 19-Apr-2007
EOL Dummy Record(s)1153 - 1144 1153 - 1144 05:25:11 - 05:26:17 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11543205 - 115401:12:04 - 05:25:04Prime16ValidProduction SP

Positioning remark 
Line ok
No shooting on turn d/t gun work
P1 shows receiver depths missing for certain sp's throughout line

Acquisition remark 
No Run-out SP


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14133235 -  23863235 -  23868503  
14142385 -  15362385 -  15368501  
14151535 -  11441535 -  11443922  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54133235 -  23863235 -  23868506  
54142385 -  15362385 -  15368504  
54151535 -  11441535 -  11443925  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL1106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL874Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL3128Noisy Trace(s)AFNoisy trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8258Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)
ALLALL8292Spiking AF TracesAFSpiking AF trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
31553155ALLALLIncomplete external headerAFBlock TRIGUN missing
30403040ALLALL0 m receivers depth in P190AFX,Y Position is correct
27922792ALLALLIncomplete external headerAFBlock TRIGUN missing
27122712ALLALL0 m receivers depth in P190AFX,Y Position is correct
27012701ALLALLIncomplete external headerAFBlock TRIGUN missing
26862686ALLALLIncomplete external headerAFBlock TRIGUN missing
26842684ALLALLIncomplete external headerAFBlock TRIGUN missing
26562656ALLALL0 m receivers depth in P190AFX,Y Position is correct
25352535ALLALL0 m receivers depth in P190AFX,Y Position is correct
24862486ALLALL0 m receivers depth in P190AFX,Y Position is correct
22082208ALLALL0 m receivers depth in P190AFX,Y Position is correct
21002100ALLALL0 m receivers depth in P190AFX,Y Position is correct
20092009ALLALL0 m receivers depth in P190AFX,Y Position is correct
19931993ALLALLIncomplete external headerAFBlock TRIGUN missing
19891989ALLALLIncomplete external headerAFBlock TRIGUN missing
19841984ALLALLIncomplete external headerAFBlock TRIGUN missing
19591959ALLALL0 m receivers depth in P190AFX,Y Position is correct
19201920ALLALLIncomplete external headerAFBlock TRIGUN missing
17001700ALLALL0 m receivers depth in P190AFX,Y Position is correct
16461646ALLALLIncomplete external headerAFBlock TRIGUN missing
15351535ALLALLIncomplete external headerAFBlock TRIGUN missing
14661466ALLALLIncomplete external headerAFBlock TRIGUN missing
12391239ALLALLIncomplete external headerAFBlock TRIGUN missing
11911191ALLALLIncomplete external headerAFBlock TRIGUN missing
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
ALLALL4225Weak 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

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
32303230ALLALLNoise RecordAFSOL Noise Record
32053205ALLALLBOLAFFirst production SP
11541154ALLALLEOLAFLast Production SP
11511151ALLALLNoise 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: 0075, Line name: GAP07B1888P075, Seismic datatype(s): AF - Locked date: 20-Apr-2007 04:51:02
GENERATED Friday, April 20, 2007 4:51:49 AM GMT+00:00