ACQUISITION REPORT

Locked date: 18-Apr-2007 18:00:20


Sequence: 0063, Line name: GAP07B1840P063, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1840P063
Preplot Line Name1840
Direction197.0°
Chargeable Line Length38756.25m
SOL Time (utc)08:11:00 16-Apr-2007
EOL Time (utc)12:29:07 16-Apr-2007

Attributes
Wind Speed / Direction10.0 / SSE[knots]
Swell Height / Direction1.5 / SSE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.924.4[knots]
Water Depth2466.0996.0[meters]
Feather Angle21.27.2[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise9.115.97[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 3234 - 3205 08:07:15 - 08:10:53 
FSP Start of Line3205 3204 08:11:00 16-Apr-2007 
MSP(midnight sp)   
LSP End of Line1139 1138 12:29:07 16-Apr-2007
EOL Dummy Record(s)1138 - 1129 1137 - 1128 12:29:16 - 12:30:25 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
3205-11393204 - 113808:11:01 - 12:29:08Prime16ValidProduction Shotpoints

Positioning remark 
Large DC at SOL d/t helo ops
Line ok

Acquisition remark 
Low Freq. Noise at start shooting d/t cables bend.

No Run-out Sp's.





Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13813235 -  28773234 -  28763592  SP & File Number out of sync. copy of copy d/t EOF mark.
13822876 -  20222875 -  20218553  SP & File Number out of sync.
13832021 -  11672020 -  11668551  SP & File Number out of sync.
13841166 -  11291165 -  1128382  SP & File Number out of sync.

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53813235 -  28723234 -  28713645  SP & File Number out of sync.
53822871 -  20222870 -  20218506  SP & File Number out of sync.
53832021 -  11722020 -  11718504  SP & File Number out of spec.
53841171 -  11291170 -  1128435  Sp & File Number out of spec.


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
31943193ALLALLIncomplete external headerAFBlock TRIGUN missing
30273026ALLALLIncomplete external headerAFBlock TRIGUN missing
28752874ALLALLMissing FileAFFile has not been recorded by recording system
28392838ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 2.1
24682467ALLALLIncomplete external headerAFBlock TRIGUN missing
22542253ALLALLIncomplete external headerAFBlock TRIGUN missing
19821981ALLALLIncomplete external headerAFBlock TRIGUN missing
19761975ALLALLIncomplete external headerAFBlock TRIGUN missing
16471646ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 2.1
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL4190Spiking AF TracesAFSpiking AF trace(s)
ALLALL4230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL279Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
31473146ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 2.0
31333132ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
31153114ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.8
31013100ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.7
30673066ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
30493048ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
30193018ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 2.0
30173016ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.3
29012900ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
28952894ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.7
28692868ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
28632862ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.7
28572856ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.7
28452844ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.8
28332832ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.5
28272826ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.3
25312530ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.3
22892288ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
22692268ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.7
22612260ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
22412240ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.5
22372236ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.8
19831982ALLALLGun timing errorAFTD Gun 3-2 error (ms) : -1.6
18851884ALLALLGun timing errorAFTD Gun 3-2 error (ms) : -1.5
18431842ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
17271726ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
16991698ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.3
16911690ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.3
16791678ALLALLGun timing errorAFTD Gun 3-2 error (ms) : -1.6
16651664ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
16611660ALLALLGun timing errorAFTD Gun 3-2 error (ms) : -1.3
16571656ALLALLGun timing errorAFTD Gun 3-2 error (ms) : -1.3
16531652ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
16411640ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.7
16331632ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
16051604ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.9
15991598ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.4
15931592ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.5
15871586ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.6
15431542ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.8
12981297ALLALLIncomplete external headerAFBlock TRIGUN missing
12491248ALLALLGun timing errorAFTD Gun 3-2 error (ms) : 1.8
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
ALLALL7194Weak 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
32303229ALLALLNoise RecordAFSOL Noise Record
32053204ALLALLBOLAFFirst Production SP
30113010ALLALLFGSPAFFirst Good Shotpoint d/t Vessel over Steering.
11391138ALLALLEOLAFLast Recorded 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: 0063, Line name: GAP07B1840P063, Seismic datatype(s): AF - Locked date: 18-Apr-2007 18:00:20
GENERATED Wednesday, April 18, 2007 6:01:17 PM GMT+00:00