US3120870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid drive recovery of oil
Assignee: Phillips Petroleum Co
•
Filing: 1961-08-04
•
Granted: 1964-02-11
•
Expires: 1981-08-04
Abstract
No abstract record available.
Inventors
- 👤 Santourian Melcon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:18
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/30; E21B43/16; E21B43/164; Y; Y02; Y02P; Y02P90/00; Y02P90/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD FOR PRODUCING AN OIL-BEARING STRATUM BY FLUID DRIVE DISPLACEMENT USING A SEVEN-SPOT WELL PATTERN CONSISTING OF A CENTRAL WELL AND A RING OF SIX SURROUNDING WELLS SPACED SUBSTANTIALLY UNIFORMLY IN SAID RING WHICH COMPRISES INJECTING DRIVING FLUID INTO SAID STRATUM THRU A PAIR OF DIAMETRICALLY OPPOSITE WELLS IN SAID RING SO AS TO PRODUCE OIL THRU SAID CENTRAL WELL AND THE OTHER FOUR WELLS IN SAID RING; CONTINUING INJECTION OF SAID FLUID THRU SAID PAIR OF WELLS UNTIL SAID FLUID HAS SWEPT AT LEAST THREE FOURTHS OF THE DISTANCE TO SAID CENTAL WELL; THEREAFTER AND BEFORE PRODUCING ANY APPRECIABLE QUANTITY OF SAID FLUID THRU SAID CENTRAL WELL, TERMINATING PRODUCTION THRU SAID CENTRAL WELL AND INJECTING SAID FLUID THERETHRU WHILE CONTINUING INJECTION OF SAID FLUID THRU SAID PAIR OF WELLS; AND CONTINUING PRODUCTION OF OIL THRU SAID OTHER FOUR WELLS.
Claim 2
Independent Claim
141 words
A METHOD FOR PRODUCING AN OIL-BEARING STRATUM BY FLUID DRIVE DISPLACEMENT USING A SEVEN-SPOT WELL PATTERN CONSISTING OF A CENTRAL WELL AND A RING OF SIX SURROUNDING WELLS SPACED SUBSTANTIALLY UNIFORMLY IN SAID RING WHICH COMPRISES INJECTING DRIVING FLUID INTO SAID STRATUM THRU A PAIR OF DIAMETRICALLY OPPOSITE WELLS IN SAID RING SO AS TO PRODUCE OIL THRU SAID CENTRAL WELL AND THE OTHER FOUR WELLS IN SAID RING; CONTINUING INJECTION OF SAID FLUID THRU SAID PAIR OF WELLS UNTIL SAID FLUID HAS SWEPT AT LEAST THREE FOURTHS OF THE DISTANCE TO SAID CENTAL WELL; THEREAFTER AND BEFORE PRODUCING ANY APPRECIABLE QUANTITY OF SAID FLUID THRU SAID CENTRAL WELL, TERMINATING PRODUCTION THRU SAID CENTRAL WELL AND INJECTING SAID FLUID THERETHRU WHILE CONTINUING INJECTION OF SAID FLUID THRU SAID PAIR OF WELLS; AND CONTINUING PRODUCTION OF OIL THRU SAID OTHER FOUR WELLS.
References Cited (Backward Citations)
US2390770A
Cited
US2885002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |