Patent US3867713A successfully refreshed from Google Patents.
US3867713A
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Multifold seismic exploration over purposefully crooked traverses
Assignee: Texas Instruments Inc
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Filing: 1973-06-22
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Granted: 1975-02-18
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Expires: 1993-06-22
Abstract
Abstract In seismic exploration, seismic impulses are generated successively at locations uniformly spaced along traverse segments which regularly cross a median line. The segments are of length equal to an integral multiple of the spacing between the locations. Seismic waves resulting from each impulse are detected at a set of the locations which bears the same traverse relationship to its shot point where the impulse giving rise to the detected waves is generated as every other set bears to its shot point. Preferably, the detected signals are stacked on a common depth point basis to portray regularly patterned multifold areal subsurface structure.
Inventors
- 👤 Edward R Tegland
- 👤 Howard L Viger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:09
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/20; G01V1/02; G01V1/104; G01V1/13
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
In seismic exploration where seismic impulses are generated successively, one impulse at each of a plurality of locations spaced along purposefully crooked traverse and where seismic waves resulting from each said impulse are detected along said traverse, the method which comprises: stacking all the detected signals which have a common depth point to produce stacked traces portraying multifold areal subsurface structural conditions.
Claim 2
Dependent Claim
62 words
In seismic exploration where seismic impulses are generated successively, one impulse at each of a plurality of locations spaced along purposefully crooked traverse and where seismic waves resulting from each said impulse are detected along said traverse, the method which comprises: stacking all the detected signals which have a common depth point to produce stacked traces portraying multifold areal subsurface structural conditions.
Claim 3
Dependent Claim
21 words
The method of claim 1 in which selected stacked traces are summed to increase the areal significance of the resultant trace.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said stacked traces are multifolded in differing degrees.
Claim 5
Independent Claim
104 words
A method of gathering seismic signals which comprises: a. generating seismic impulses successively, one impulse at each of a plurality of source locations uniformly spaced along traverse segments which regularly cross a median line wherein said segments are of length equal to an integral multiple of the spacing between said locations, b. detecting seismic waves resulting from each said impulse at locations along said traverse which have common depth point relationships to the points of generation of the impulse giving rise to the detected waves, and c. stacking the detected signals on a common depth point basis to portray multifold areal subsurface structural conditions.
Claim 6
Independent Claim
104 words
A method of gathering seismic signals which comprises: a. generating seismic impulses successively, one impulse at each of a plurality of source locations uniformly spaced along traverse segments which regularly cross a median line wherein said segments are of length equal to an integral multiple of the spacing between said locations, b. detecting seismic waves resulting from each said impulse at locations along said traverse which have common depth point relationships to the points of generation of the impulse giving rise to the detected waves, and c. stacking the detected signals on a common depth point basis to portray multifold areal subsurface structural conditions.
Claim 7
Dependent Claim
33 words
The method of claim 4 in which said source locations are uniformly spaced along a sawtooth traverse having straight segments of lengths equal to an integral multiple of the spacing between said locations.
Claim 8
Dependent Claim
51 words
The method of claim 4 in which seismic waves resulting from each said impulse are detected at locations along said traverse which have common depth point relationships among the locations and in which the detected signals are stacked on a common depth point basis to portray multifold areal subsurface structural conditions.
Claim 9
Independent Claim
119 words
The method of common depth point seismic exploration which comprises: a. generating seismic impulses successively, one impulse at each of a plurality of locations uniformly spaced along a traverse of composed of segments which regularly cross a median line wherein said segments are of length equal to an integral multiple of the spacing between said locations, b. detecting seismic waves resulting from each said impulse at a non-linear set of locations along said traverse, the group of spacings along said traverse between any impulse location and the corresponding set of detector locations being invariant as a function of impulse location, and c. stacking the detected signals on a common depth point basis to portray multifold areal subsurface structural conditions.
Claim 10
Independent Claim
119 words
The method of common depth point seismic exploration which comprises: a. generating seismic impulses successively, one impulse at each of a plurality of locations uniformly spaced along a traverse of composed of segments which regularly cross a median line wherein said segments are of length equal to an integral multiple of the spacing between said locations, b. detecting seismic waves resulting from each said impulse at a non-linear set of locations along said traverse, the group of spacings along said traverse between any impulse location and the corresponding set of detector locations being invariant as a function of impulse location, and c. stacking the detected signals on a common depth point basis to portray multifold areal subsurface structural conditions.
Claim 11
Independent Claim
96 words
A method of common depth point seismic exploration which comprises: a. generating seismic impulses successively, one impulse at each of a plurality of locations uniformly spaced along traverse segments which regularly cross a median line wherein said segments are of length equal to an integral multiple of the spacing between said locations, b. detecting seismic waves resulting from each said impulse at sets of detecting locations arrayed along parallel lines spaced on opposite sides of said median, and c. stacking the detected signals on a common depth point basis to portray multifold areal subsurface structural conditions.
Claim 12
Independent Claim
96 words
A method of common depth point seismic exploration which comprises: a. generating seismic impulses successively, one impulse at each of a plurality of locations uniformly spaced along traverse segments which regularly cross a median line wherein said segments are of length equal to an integral multiple of the spacing between said locations, b. detecting seismic waves resulting from each said impulse at sets of detecting locations arrayed along parallel lines spaced on opposite sides of said median, and c. stacking the detected signals on a common depth point basis to portray multifold areal subsurface structural conditions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |