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GB1380886A - Static corrections for seismic traces by cross-correlation method - Google Patents

Static corrections for seismic traces by cross-correlation method

Info

Publication number
GB1380886A
GB1380886A GB1806173A GB1806173A GB1380886A GB 1380886 A GB1380886 A GB 1380886A GB 1806173 A GB1806173 A GB 1806173A GB 1806173 A GB1806173 A GB 1806173A GB 1380886 A GB1380886 A GB 1380886A
Authority
GB
United Kingdom
Prior art keywords
components
time
equations
corrections
reflection
Prior art date
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.)
Expired
Application number
GB1806173A
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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Chevron Research 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.)
Filing date
Publication date
Application filed by Chevron Research and Technology Co, Chevron Research Co filed Critical Chevron Research and Technology Co
Priority to GB1806173A priority Critical patent/GB1380886A/en
Publication of GB1380886A publication Critical patent/GB1380886A/en
Expired legal-status Critical Current

Links

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. for interpretation or for event detection
    • G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
    • G01V1/362—Effecting static or dynamic corrections; Stacking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/50—Corrections or adjustments related to wave propagation
    • G01V2210/52—Move-out correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/50—Corrections or adjustments related to wave propagation
    • G01V2210/53—Statics correction, e.g. weathering layer or transformation to a datum

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1380886 Seismic signal processing CHEVRON RESEARCH CO 13 April 1973 18061/73 Heading H4D To determine seismic reflection trace static corrections, comprising individual source-todatum plane and geophone-to-datum plane corrections, (a) the traces are cross-correlated in pairs to measure their mutual time-lags, (b) each time-lag is considered as the sum of time components to establish a set of simultaneous linear equations in which the unknowns are source-todatum time components, geophone-to-datum time components, subsurface structural reflection time components, residual normal moveout components and possible error components, there being one equation per time-lag and more equations than unknowns, and (c) solving the set of equations by minimizing the sum of the squares of the amounts by which the individual equations are not satisfied by their common solution. In the Fig. 8 embodiment constraints are put on the time components before setting up the simultaneous equations. Thus the source-todatum and geophone-to-datum components are defined in terms of their field-estimated values, and data reduction is effected for the subsurface reflection time and residual normal moveout components by interpolating between reference unknown reflection and moveout components associated with, e.g. every tenth trace. This data reduction is possible since these reflection and moveout components vary smoothly from trace to trace. The traces paired for the crosscorrelation are selected from ones associated with (a) common sources but different geophones, (b) common geophones but different sources, (c) common offset distances and/or (d) common depth points. The equations involving the correlation time-lags are reduced to a non- redundant set of "normal equations" which are solved to determine the static corrections. The corrections may be applied to the original traces and the whole procedure iterated to refine the corrections.
GB1806173A 1973-04-13 1973-04-13 Static corrections for seismic traces by cross-correlation method Expired GB1380886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1806173A GB1380886A (en) 1973-04-13 1973-04-13 Static corrections for seismic traces by cross-correlation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1806173A GB1380886A (en) 1973-04-13 1973-04-13 Static corrections for seismic traces by cross-correlation method

Publications (1)

Publication Number Publication Date
GB1380886A true GB1380886A (en) 1975-01-15

Family

ID=10105971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1806173A Expired GB1380886A (en) 1973-04-13 1973-04-13 Static corrections for seismic traces by cross-correlation method

Country Status (1)

Country Link
GB (1) GB1380886A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169406A (en) * 1984-12-24 1986-07-09 Exxon Production Research Co Low velocity layer time corrections in seismic data processing
CN111352157A (en) * 2018-12-20 2020-06-30 中国石油天然气集团有限公司 Shear wave static correction method and system
CN111965701A (en) * 2019-05-20 2020-11-20 中国石油天然气集团有限公司 Near-surface structure inversion method and system
CN112255687A (en) * 2020-10-26 2021-01-22 中煤科工集团西安研究院有限公司 Seismic source function reconstruction method and device of seismic shearer during mining of stope face

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169406A (en) * 1984-12-24 1986-07-09 Exxon Production Research Co Low velocity layer time corrections in seismic data processing
CN111352157A (en) * 2018-12-20 2020-06-30 中国石油天然气集团有限公司 Shear wave static correction method and system
CN111352157B (en) * 2018-12-20 2022-08-30 中国石油天然气集团有限公司 Shear wave static correction method and system
CN111965701A (en) * 2019-05-20 2020-11-20 中国石油天然气集团有限公司 Near-surface structure inversion method and system
CN111965701B (en) * 2019-05-20 2023-09-26 中国石油天然气集团有限公司 Near-surface structure inversion method and system
CN112255687A (en) * 2020-10-26 2021-01-22 中煤科工集团西安研究院有限公司 Seismic source function reconstruction method and device of seismic shearer during mining of stope face
CN112255687B (en) * 2020-10-26 2024-01-19 中煤科工集团西安研究院有限公司 Method and device for reconstructing seismic source function of stope face along with mining earthquake coal mining machine

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930412