GB2004648A – Field fan filter for seismic signals
– Google Patents
GB2004648A – Field fan filter for seismic signals
– Google Patents
Field fan filter for seismic signals
Info
Publication number
GB2004648A
GB2004648A
GB7836024A
GB7836024A
GB2004648A
GB 2004648 A
GB2004648 A
GB 2004648A
GB 7836024 A
GB7836024 A
GB 7836024A
GB 7836024 A
GB7836024 A
GB 7836024A
GB 2004648 A
GB2004648 A
GB 2004648A
Authority
GB
United Kingdom
Prior art keywords
pairs
summing
clock
charge
taking
Prior art date
1977-09-21
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7836024A
Other versions
GB2004648B
(en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Standard Oil Co
Original Assignee
Standard Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1977-09-21
Filing date
1978-09-07
Publication date
1979-04-04
1978-09-07
Application filed by Standard Oil Co
filed
Critical
Standard Oil Co
1979-04-04
Publication of GB2004648A
publication
Critical
patent/GB2004648A/en
1982-09-22
Application granted
granted
Critical
1982-09-22
Publication of GB2004648B
publication
Critical
patent/GB2004648B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
G01V1/364—Seismic filtering
G—PHYSICS
G01—MEASURING; TESTING
G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
Abstract
Apparatus for fan filtering seismic data in the field comprising inputs for receiving signals from each seismometer 1-12 in a group, summing amplifiers 13-18 for summing the received signals by pairs, charge-coupled device delay lines 19-24 for providing two different delays to each of the summed pairs, amplifiers 25-30 for taking the difference of each of the two delayed signals from each summed pair, and means for weighting and summing the outputs of all pairs. The time delays of each of the charge-coupled device delay lines are proportional to and controlled by a single clock, which can be time- variable. The clock may be held at a single frequency during the taking of a given record, but in the preferred embodiment the clock is varied during recording to provide a narrower pass band of apparent velocities for deeper reflections than for the shallow reflections.
GB7836024A
1977-09-21
1978-09-07
Field fan filter
Expired
GB2004648B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US83510077A
1977-09-21
1977-09-21
Publications (2)
Publication Number
Publication Date
GB2004648A
true
GB2004648A
(en)
1979-04-04
GB2004648B
GB2004648B
(en)
1982-09-22
Family
ID=25268577
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7836024A
Expired
GB2004648B
(en)
1977-09-21
1978-09-07
Field fan filter
Country Status (4)
Country
Link
CA
(1)
CA1128189A
(en)
DE
(1)
DE2841125A1
(en)
FR
(1)
FR2404234A1
(en)
GB
(1)
GB2004648B
(en)
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2489530A1
(en)
*
1980-09-02
1982-03-05
Mobil Oil Corp
SEISMIC EXPLORATION DEVICE USING PRESSURE AND SPEED DETECTORS
US4935903A
(en)
*
1989-05-30
1990-06-19
Halliburton Geophysical Services, Inc.
Reinforcement of surface seismic wavefields
US4937793A
(en)
*
1989-05-30
1990-06-26
Halliburton Geophysical Services, Inc.
Processing method for marine seismic surveying utilizing dual streamers
US4979150A
(en)
*
1989-08-25
1990-12-18
Halliburton Geophysical Services, Inc.
System for attenuation of water-column reverberations
US5621699A
(en)
*
1995-07-07
1997-04-15
Pgs Ocean Bottom Seismic, Inc.
Apparatus and method of calibrating vertical particle velocity detector and pressure detector in a sea-floor cable with in-situ passive monitoring
US5754492A
(en)
*
1996-02-12
1998-05-19
Pgs Tensor, Inc.
Method of reverberation removal from seismic data and removal of dual sensor coupling errors
US5774416A
(en)
*
1995-04-07
1998-06-30
Pgs, Tensor, Inc.
Method and device for attenuating water column reverberations using co-located hydrophones and geophones in ocean bottom seismic processing
EP2751599A4
(en)
*
2011-11-18
2016-06-29
Geco Technology Bv
Coherent noise attenuation
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3274541A
(en)
*
1963-02-15
1966-09-20
Texas Instruments Inc
Seismic velocity filtering
US3576522A
(en)
*
1966-08-01
1971-04-27
Continental Oil Co
Method and apparatus for analog velocity filtering
CA970461A
(en)
*
1971-07-29
1975-07-01
Atlantic Richfield Company
Velocity selective array
US3877056A
(en)
*
1973-01-02
1975-04-08
Texas Instruments Inc
Charge transfer device signal processing system
US4035628A
(en)
*
1975-10-24
1977-07-12
Westinghouse Electric Corporation
Analog transversal filtering and correlation with progressive summation of analog signals
1978
1978-06-30
CA
CA306,674A
patent/CA1128189A/en
not_active
Expired
1978-08-21
FR
FR7824281A
patent/FR2404234A1/en
active
Pending
1978-09-07
GB
GB7836024A
patent/GB2004648B/en
not_active
Expired
1978-09-21
DE
DE19782841125
patent/DE2841125A1/en
not_active
Withdrawn
Cited By (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2489530A1
(en)
*
1980-09-02
1982-03-05
Mobil Oil Corp
SEISMIC EXPLORATION DEVICE USING PRESSURE AND SPEED DETECTORS
US4486865A
(en)
*
1980-09-02
1984-12-04
Mobil Oil Corporation
Pressure and velocity detectors for seismic exploration
US4935903A
(en)
*
1989-05-30
1990-06-19
Halliburton Geophysical Services, Inc.
Reinforcement of surface seismic wavefields
US4937793A
(en)
*
1989-05-30
1990-06-26
Halliburton Geophysical Services, Inc.
Processing method for marine seismic surveying utilizing dual streamers
US4979150A
(en)
*
1989-08-25
1990-12-18
Halliburton Geophysical Services, Inc.
System for attenuation of water-column reverberations
US5774416A
(en)
*
1995-04-07
1998-06-30
Pgs, Tensor, Inc.
Method and device for attenuating water column reverberations using co-located hydrophones and geophones in ocean bottom seismic processing
US5621699A
(en)
*
1995-07-07
1997-04-15
Pgs Ocean Bottom Seismic, Inc.
Apparatus and method of calibrating vertical particle velocity detector and pressure detector in a sea-floor cable with in-situ passive monitoring
US5754492A
(en)
*
1996-02-12
1998-05-19
Pgs Tensor, Inc.
Method of reverberation removal from seismic data and removal of dual sensor coupling errors
EP2751599A4
(en)
*
2011-11-18
2016-06-29
Geco Technology Bv
Coherent noise attenuation
US9575196B2
(en)
2011-11-18
2017-02-21
Westerngeco L.L.C.
Coherent noise attenuation
Also Published As
Publication number
Publication date
GB2004648B
(en)
1982-09-22
DE2841125A1
(en)
1979-03-29
CA1128189A
(en)
1982-07-20
FR2404234A1
(en)
1979-04-20
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Legal Events
Date
Code
Title
Description
1986-05-08
PCNP
Patent ceased through non-payment of renewal fee
