ACQUISITION REPORT

Locked date: 24-Apr-2007 19:39:56


Sequence: 0100, Line name: GAP07B2032J100, Seismic datatype(s): AF


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

Sequence
Line NameGAP07B2032J100
Preplot Line Name2032
Direction17.0°
Chargeable Line Length29456.25m
SOL Time (utc)01:49:05 24-Apr-2007
EOL Time (utc)03:30:28 24-Apr-2007

Attributes
Wind Speed / Direction13.0 / SE[knots]
Swell Height / Direction3.0 / SE[meters]
Propeller Speed [avg rpm]
Propeller Pitch [avg %]

  SOL EOL 
Bottom Speed4.934.76[knots]
Water Depth1503.82254.0[meters]
Feather Angle3.49.7[deg]
Sources Volume s1,s2 ..3147, 31473147, 3147[cu inch]
Background Noise7.888.13[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)1273 - 1302 1273 - 1302 01:45:54 - 01:49:28 
FSP Start of Line1303 1303 01:49:05 24-Apr-2007 
MSP(midnight sp)   
LSP End of Line2110 2110 03:30:28 24-Apr-2007
EOL Dummy Record(s)2111 - 2123 2111 - 2123 03:30:37 - 03:32:22 
EOL Noise Record(s)   

Line-segments 
SPs Files Times [utc] Type No. CMPs Status Remark
1303-21101303 - 211001:49:36 - 03:30:29Infill16ValidProduction Shots

Positioning remark 
Line ok

Acquisition remark 
Infill Line
Cable and Source depths unstable d/t sea state.
Random swell noise on records. @ 20% approx. 25 uB. average


Tape-List
 
Stream AF 
Reel Shots Files No. shots Deck Missing Shots Remark
14681273 -  21221273 -  21228502  

Stream AF_copy 
Reel Shots Files No. shots Deck Missing Shots Remark
54681273 -  21221273 -  21228505  


Annotations
 
NTBP 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL4190, 230Spiking AF TracesAFSpiking AF trace(s)
ALLALL8267-269, 271Noisy Trace(s)AFNoisy trace(s)
ALLALL171, 106-107Noisy Trace(s)AFNoisy trace(s)
ALLALL321, 154Spiking AF TracesAFSpiking AF trace(s)
ALLALL4222-223Noisy Trace(s)AFNoisy trace(s)
ALLALL8212-213Noisy Trace(s)AFNoisy trace(s)
ALLALL228Noisy Trace(s)AFNoisy trace(s)
ALLALL749Noisy Trace(s)AFNoisy trace(s)
ALLALL698Spiking AF TracesAFSpiking AF trace(s)
ALLALL8141Spiking AF TracesAFSpiking AF trace(s)
ALLALL6159Dead trace(s)AFAF traces dead
ALLALL5234Spiking AF TracesAFSpiking AF trace(s)
17581758ALLALLIncomplete external headerAFBlock TRIGUN missing
17691769ALLALLIncomplete external headerAFBlock TRIGUN missing
1770ALLALLMissing FileAFFile has not been recorded by recording system
17891789ALLALLIncomplete external headerAFBlock TRIGUN missing

Warnings 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
ALLALL513, 36, 52Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8292, 319Weak Trace(s)AFTrace amplitude visibly lower than adjacent traces
ALLALL8225, 230Weak 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
13111311ALLALLSource depth out of specAFTD Source-depth for gun position 5-6 below 8.0 meter (value is: 8.0)
13311331ALLALLSource depth out of specAFTD Source-depth for gun position 4-2 below 8.0 meter (value is: 8.0)
13571357ALLALLSource depth out of specAFTD Source-depth for gun position 4-2 below 8.0 meter (value is: 8.1)
13611361ALLALLSource depth out of specAFTD Source-depth for gun position 3-6 below 8.0 meter (value is: 8.2)
13891389ALLALLSource depth out of specAFTD Source-depth for gun position 6-4 below 8.0 meter (value is: 8.0)
13921392ALLALLSource depth out of specAFTD Source-depth for gun position 6-4 below 8.0 meter (value is: 8.0)
1415-14161415-1416ALLALLSource depth out of specAFTD Source-depth for gun position 4-2 below 8.0 meter (value is: 8.0)
14281428ALLALLSource depth out of specAFTD Source-depth for gun position 4-2 below 8.0 meter (value is: 8.0)
16441644ALLALLSource depth out of specAFTD Source-depth for gun position 1-2 below 8.0 meter (value is: 8.0)
16471647ALLALLSource depth out of specAFTD Source-depth for gun position 1-5 above 6.0 meter (value is: 5.8)
16491649ALLALLSource depth out of specAFTD Source-depth for gun position 4-6 below 8.0 meter (value is: 8.0)
16651665ALLALLSource depth out of specAFTD Source-depth for gun position 1-6 below 8.0 meter (value is: 8.0)
17021702ALLALLSource depth out of specAFTD Source-depth for gun position 6-6 below 8.0 meter (value is: 8.1)
18051805ALLALLSource depth out of specAFTD Source-depth for gun position 6-6 below 8.0 meter (value is: 8.0)
18341834ALLALLSource depth out of specAFTD Source-depth for gun position 5-5 below 8.0 meter (value is: 8.0)
18341834ALLALLSource depth out of specAFTD Source-depth for gun position 5-6 below 8.0 meter (value is: 8.1)
18691869ALLALLSource depth out of specAFTD Source-depth for gun position 1-2 below 8.0 meter (value is: 8.0)
18691869ALLALLSource depth out of specAFTD Source-depth for gun position 6-6 below 8.0 meter (value is: 8.1)
18821882ALLALLSource depth out of specAFTD Source-depth for gun position 3-3 above 6.0 meter (value is: 6.0)
18821882ALLALLSource depth out of specAFTD Source-depth for gun position 3-4 above 6.0 meter (value is: 6.0)
19561956ALLALLSource depth out of specAFTD Source-depth for gun position 6-6 below 8.0 meter (value is: 8.0)
19751975ALLALLSource depth out of specAFTD Source-depth for gun position 6-6 below 8.0 meter (value is: 8.0)
19801980ALLALLSource depth out of specAFTD Source-depth for gun position 4-5 below 8.0 meter (value is: 8.0)
19801980ALLALLSource depth out of specAFTD Source-depth for gun position 4-6 below 8.0 meter (value is: 8.0)
20072007ALLALLSource depth out of specAFTD Source-depth for gun position 1-3 above 6.0 meter (value is: 6.0)
20072007ALLALLSource depth out of specAFTD Source-depth for gun position 1-4 above 6.0 meter (value is: 6.0)
20072007ALLALLSource depth out of specAFTD Source-depth for gun position 1-5 above 6.0 meter (value is: 6.0)
20802080ALLALLSource depth out of specAFTD Source-depth for gun position 3-6 below 8.0 meter (value is: 8.1)
21012101ALLALLSource depth out of specAFTD Source-depth for gun position 4-6 below 8.0 meter (value is: 8.2)

Comments 
Shot(s) File(s) Streamer No(s) Trace(s) Type Seismic datatype Remark
12761276ALLALLNoise RecordAFSOL Noise Record
13031303ALLALLBOLAFFirst Infill Shotpoint.
21102110ALLALLEOLAFLast Infill Shotpoint.
21122112ALLALLNoise 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: 0100, Line name: GAP07B2032J100, Seismic datatype(s): AF - Locked date: 24-Apr-2007 19:39:56
GENERATED Tuesday, April 24, 2007 7:44:15 PM GMT+00:00