Patent US3286768A successfully refreshed from Google Patents.
US3286768A
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Recovery of petroleum from a subterranean reservor
Assignee: Mobil Oil AS
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Filing: 1963-09-16
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Granted: 1966-11-22
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 John P Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:42
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PROCESS FOR THE PRODUCING OF PETROLEUM FROM A FORMATION PENETRATED BY AN INJECTION WELL AND A PRODUCTION MEANS INCLUDING AT LEAST ONE PRODUCTION WELL BY INJECTION OF A DISPLACING LIQUID INTO SAID FORMATION THROUGH SAID INJCTION WELL AND DISPLACEMENT OF SAID PETROLEUM BY SAID DISPLACING LIQUID IN THE DIRECTION OF SAID PRODUCTION WELL, THE IMPROVEMENT COMPRISING INJECTING SAID DISPLACING LIQUID INTO SAID FORMATION FROM SAID INJECTION WELL ONLY IN A DIRECTION IN WHICH FLOW ON THE DISPLACING LIQUID WOULD NORMALLY BE THE SLOWEST FROM SAID INJECTION WELL TO SAID PRODUCTION WELL.
Claim 2
Dependent Claim
93 words
IN A PROCESS FOR THE PRODUCING OF PETROLEUM FROM A FORMATION PENETRATED BY AN INJECTION WELL AND A PRODUCTION MEANS INCLUDING AT LEAST ONE PRODUCTION WELL BY INJECTION OF A DISPLACING LIQUID INTO SAID FORMATION THROUGH SAID INJCTION WELL AND DISPLACEMENT OF SAID PETROLEUM BY SAID DISPLACING LIQUID IN THE DIRECTION OF SAID PRODUCTION WELL, THE IMPROVEMENT COMPRISING INJECTING SAID DISPLACING LIQUID INTO SAID FORMATION FROM SAID INJECTION WELL ONLY IN A DIRECTION IN WHICH FLOW ON THE DISPLACING LIQUID WOULD NORMALLY BE THE SLOWEST FROM SAID INJECTION WELL TO SAID PRODUCTION WELL.
References Cited (Backward Citations)
US2107007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |