ACQUISITION REPORT

Locked date: 14-Apr-2007 17:12:55


Sequence: 0049, Line name: GAP07B1632P049, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B1632P049
Preplot Line Name1632
Direction197.0°
Chargeable Line Length16518.75m
SOL Time (utc)23:43:12 13-Apr-2007
EOL Time (utc)01:36:43 14-Apr-2007

Attributes
Wind Speed / Direction10.0 / N[knots]
Swell Height / Direction1.0 / NE[meters]
Propeller Speed126[avg rpm]
Propeller Pitch70[avg %]

  SOL EOL 
Bottom Speed5.04.1[knots]
Water Depth1656.0510.0[meters]
Feather Angle1.3-3.6[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise0.00.0[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)1988 - 1959 1986 - 1957 23:39:39 - 23:43:06 
FSP Start of Line1958 1956 23:43:12 13-Apr-2007 
MSP(midnight sp)1818 1816 23:59:55 13-Apr-2007
LSP End of Line1078 1076 01:36:43 14-Apr-2007
EOL Dummy Record(s)1077 - 1067 1075 - 1065 01:36:53 - 01:38:21 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1958-10781956 - 107623:43:13 - 01:36:44Prime16Valid 

Positioning remark 
SP 1580-1855 Seatrack Link 3 died
Not shooting on turn d/t vessel alongside

Acquisition remark 
No BOL noise. File number is 2 behind SP number.
No shooting on run out, supply boat is along side.


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
13561988 -  11391986 -  11378503  
13571138 -  10671136 -  1065721  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
53561988 -  11391986 -  11378506  
53571138 -  10671136 -  1065724  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
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)
ALLALL8268Noisy Trace(s)AFNoisy trace(s)
ALLALL8271Noisy Trace(s)AFNoisy trace(s)

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
13471345ALLALLIncomplete external headerAFBlock TRIGUN missing
11951193ALLALLIncomplete 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
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
19581956ALLALLBOLAFFirst production SP
10781076ALLALLEOLAFLast production SP
10731071ALLALLNoise 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: 0049, Line name: GAP07B1632P049, Seismic datatype(s): AF - Locked date: 14-Apr-2007 17:12:55
GENERATED Saturday, April 14, 2007 5:13:44 PM GMT+00:00