US5001677A
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US
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Methods for processing and displaying seismic data
Assignee: Shell Offshore Inc
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Filing: 1989-10-16
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Granted: 1991-03-19
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Expires: 2009-10-16
Abstract
Abstract The present invention provides methods for processing and displaying seismic data to emphasize potential hydrocarbon bearing strata. The methods treat measured attributes from the seismic data as components of a vector, estimate a background vector which represents uninteresting geologic behavior, and then form at least one new attribute which quantifies departures from this uninteresting behavior. The new attributes(s) and other attributes are then appropriately displayed.
Inventors
- 👤 A. Ronald Masters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:19
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/30; G01V1/34; G01V2210/00; G01V2210/60; G01V2210/63; G01V2210/632
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
82 words
A method for interpreting seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining more than one attribute which contains information about elastic properties and densities of the subsurface from said seismic records, determining the behavior of said more than one attribute which characterizes non-reservoir formations for a portion of said seismic records, and forming at least one new attribute which quantifies departures of the behavior of said more than one attribute which characterizes non-reservoir formations.
Claim 2
Independent Claim
82 words
A method for interpreting seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining more than one attribute which contains information about elastic properties and densities of the subsurface from said seismic records, determining the behavior of said more than one attribute which characterizes non-reservoir formations for a portion of said seismic records, and forming at least one new attribute which quantifies departures of the behavior of said more than one attribute which characterizes non-reservoir formations.
Claim 3
Dependent Claim
15 words
A method as claimed in claim 1, further comprising: displaying said attributes and said behavior.
Claim 4
Independent Claim
68 words
A method for interpreting seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining attributes which contain information about densities and shear and compressional wave velocities from said seismic records, determining the relationships among said determined attributes that characterize non-reservoir formations for a portion of said seismic records, compensating said determined attributes to remove said determined relationships, and displaying said compensated attributes.
Claim 5
Independent Claim
68 words
A method for interpreting seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining attributes which contain information about densities and shear and compressional wave velocities from said seismic records, determining the relationships among said determined attributes that characterize non-reservoir formations for a portion of said seismic records, compensating said determined attributes to remove said determined relationships, and displaying said compensated attributes.
Claim 6
Dependent Claim
24 words
A method as claimed in claim 3, wherein said determining said relationships for non-reservoir formations step, comprises, determining said relationships from said seismic records.
Claim 7
Dependent Claim
26 words
A method as claimed in claim 3, wherein said determining said relationships for non-reservoir formations step, comprises, determining said relationships from known or estimated geologic information.
Claim 8
Dependent Claim
21 words
A method as claimed in claim 3, wherein said determining said attributes step, comprises, determining pseudo-shear and normal incident amplitude attributes.
Claim 9
Dependent Claim
28 words
A method as claimed in claim 3, wherein said compensating said determined attributes step, comprises, forming a new attribute which quantifies departures of said attributes from said relationships.
Claim 10
Independent Claim
84 words
A method for processing and displaying compressional seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining more than one attribute representative of signal amplitudes and their variations with offset from said seismic records, determining the behavior of said more than one attribute which characterizes non-reservoir formations for a portion of said seismic records, compensating said determined more than one attribute for said behavior which characterizes non-reservoir formations, and displaying relative differences between said attribute and said behavior.
Claim 11
Independent Claim
84 words
A method for processing and displaying compressional seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining more than one attribute representative of signal amplitudes and their variations with offset from said seismic records, determining the behavior of said more than one attribute which characterizes non-reservoir formations for a portion of said seismic records, compensating said determined more than one attribute for said behavior which characterizes non-reservoir formations, and displaying relative differences between said attribute and said behavior.
Claim 12
Independent Claim
53 words
A method for processing seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining optimized velocities and optimized attributes characterizing the variation of with offset, determining at least one background vector, determining attributes representative of at least one background normal vector, and displaying at least said attributes.
Claim 13
Independent Claim
53 words
A method for processing seismic data, comprising: generating seismic records with a multiplicity of known source and receiver locations, determining optimized velocities and optimized attributes characterizing the variation of with offset, determining at least one background vector, determining attributes representative of at least one background normal vector, and displaying at least said attributes.
Claim 14
Dependent Claim
22 words
A method as claimed in claim 9, further comprising: selecting events on said displays, and measuring the amplitudes of said selected events.
Claim 15
Dependent Claim
26 words
A method as claimed in claim 9, wherein said displaying at least said attributes, comprises: displaying sections of background normal attributes and said determined optimized attributes.
Claim 16
Dependent Claim
33 words
A method as claimed in claim 9, wherein said displaying at least said attributes, comprises: displaying at least one of said background normal attributes and at least one of said determined optimized attributes.
Claim 17
Dependent Claim
33 words
A method as claimed in claim 12, wherein said displaying at least one of said background normal attributes and at least one of said determined optimized attributes comprises a cross-plot of such attributes.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-18 | 1994-09-17 | 1995-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-18 | 1998-09-17 | 1999-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-18 | 2002-09-17 | 2003-03-19 | $7700.00 | Window Closed / Lapsed |