Patent US300068A successfully refreshed from Google Patents.
US3731270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic exploration using the common reflection point technique
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1971-04-21
•
Granted: 1973-05-01
•
Expires: 1991-04-21
Abstract
Abstract The common reflection point seismic technique wherein the locations of seismic disturbances and the locations of seismic wave detection stations are positioned on the same traverse, is utilized to produce a plurality of seismic records having events produced by reflections from common reflection points. A plurality of detection locations are located on one side of the first traverse and a plurality of transmitting locations are located on the other side of the traverse such that ray paths from a given disturbance location to a given detecting location will include a common reflection point. Seismic disturbances are initiated in sequence at the transmitting locations and detected at the detection locations. Seismic records thus produced are combined such that event records from common reflection points reinforce each other.
Inventors
- 👤 J Penhollow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:32
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
180 words
In a method of seismic prospecting wherein seismic data records having events produced by seismic waves reflected from a common reflection location are summed to additively combine said events, the improved method of obtaining said data records comprising: locating a plurality of seismic energy detecting locations along a first traverse; producing seismic disturbances at each of a plurality of locations on said traverse such that seismic energy detected at said detecting locations include reflections from common reflection locations on sub-surface reflection horizons; locating a plurality of seismic energy detecting locations along a second traverse on one side of and substantially parallel thereto, and a plurality of seismic energy transmitting locations along a third traverse on the other side of and substantially parallel thereto such that seismic wave ray paths extending from selected transmitting location to any selected detecting location on the second traverse will include one of said common reflection locations; and producing seismic disturbances in sequence at transmitting locations on said third traverse, and detecting and recording seismic waves produced thereby at said detecting locations on said second traverse.
Claim 2
Dependent Claim
180 words
In a method of seismic prospecting wherein seismic data records having events produced by seismic waves reflected from a common reflection location are summed to additively combine said events, the improved method of obtaining said data records comprising: locating a plurality of seismic energy detecting locations along a first traverse; producing seismic disturbances at each of a plurality of locations on said traverse such that seismic energy detected at said detecting locations include reflections from common reflection locations on sub-surface reflection horizons; locating a plurality of seismic energy detecting locations along a second traverse on one side of and substantially parallel thereto, and a plurality of seismic energy transmitting locations along a third traverse on the other side of and substantially parallel thereto such that seismic wave ray paths extending from selected transmitting location to any selected detecting location on the second traverse will include one of said common reflection locations; and producing seismic disturbances in sequence at transmitting locations on said third traverse, and detecting and recording seismic waves produced thereby at said detecting locations on said second traverse.
Claim 3
Dependent Claim
118 words
The method of claim 1 further including locating a plurality of seismic energy detecting locations on a fourth traverse parallel to said first, second, and third traverses, and locating a third plurality of seismic energy transmitting locations on a fifth traverse substantially parallel to said first traverse and on the opposite side thereof from said fourth traverse such that seismic wave ray paths extending from any transmitting location on said fifth traverse to any given receiving location on said fourth traverse will include one of said common reflection locations; and producing seismic disturbances in sequence at transmitting locations on said fifth traverse, and detecting and recording seismic waves produced thereby at selected detecting locations on said fourth traverse.
Claim 4
Dependent Claim
19 words
The method of claim 2 wherein said second and fourth traverses are on opposite sides of said first traverse.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein the seismic energy transmitting locations on said first traverse coincide with said seismic energy detecting locations thereon.
Claim 6
Dependent Claim
36 words
The method of claim 2 wherein vertical planes passing through ray paths extending between said second and third traverses are not coincident with vertical planes passing through ray paths extending between said fourth and fifth traverses.
Claim 7
Dependent Claim
19 words
The method of claim 5 wherein said second and fourth traverses are on opposite sides of said first traverse.
References Cited (Backward Citations)
US3431999A
Cited
US3597727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |