Patent US3164207A successfully refreshed from Google Patents.
US3164207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recovering oil
Assignee: Individual
•
Filing: 1961-01-17
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Granted: 1965-01-05
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Expires: 1981-01-17
Abstract
No abstract record available.
Inventors
- 👤 Wayne H Thessen
- 👤 William J Spry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:16
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/2403
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A METHOD FOR HEATING A SUBTERRANEAN PETROLEUMBEARING STRATA HAV ING A BORE HOLE EXTENDING THERINTO COMPRISING PROVIDING A SOURCE OF HEAT INCLUDING HEAT EXCHANGE MANS IN SAID BORE HOLE, PROVIDING A BODY OF HEAT CONDUCTIVE LIQUID WITHIN SAID BORE HOLE IN CONTACT WITH SAID HEAT EXCHANGE MEANS TO HEAT THE LIQUID IN THE BORE HOLE WITH THE LIQUID ALSO BEING DISPOSED ADJACENT SAID PETROLEUM-BEARING STRATA AND IN INTIMATE CONTACT WITH AN UNINTERRUPTED PORTION OF THE BORE HOLE WALL THROUGHOUT A SUBSTANTIAL LENGTH OF THE BORE HOLE WALL ADJACENT SAID PETROLEUM-BEARING STRATA AND CONTINUOUSLY CIRCULATING SUBSTANTIALLY THE ENTIRE BODY OF LIQUID LONGITUDINALLY OF THE BORE HOLE BETWEEN THE UPPER AND LOWER LEVELS OF SAID BODY OF LIQUID SO AS TO SUBSTANTIALL YDONTINUOUSLY MOVE THE LIQUID ALONG UNINTERRUPTED BORE WALL PORTIONS THROUGHOUT A SUBSTANTIAL LENGTH OF THE BORE HOLE WALL AND IN INTIMATE CONTACT THEREWITH SO AS TO HEAT A LARGE AREA OF THE BORE HOLE WALL TO A SUBSNATIALLY UNIFORM TEMPERATURE TO EFFECTIVELY PROVIDE A LINE SOURCE OF HAT TO THE ADJACENT STRATA.
Claim 2
Independent Claim
172 words
A METHOD FOR HEATING A SUBTERRANEAN PETROLEUMBEARING STRATA HAV ING A BORE HOLE EXTENDING THERINTO COMPRISING PROVIDING A SOURCE OF HEAT INCLUDING HEAT EXCHANGE MANS IN SAID BORE HOLE, PROVIDING A BODY OF HEAT CONDUCTIVE LIQUID WITHIN SAID BORE HOLE IN CONTACT WITH SAID HEAT EXCHANGE MEANS TO HEAT THE LIQUID IN THE BORE HOLE WITH THE LIQUID ALSO BEING DISPOSED ADJACENT SAID PETROLEUM-BEARING STRATA AND IN INTIMATE CONTACT WITH AN UNINTERRUPTED PORTION OF THE BORE HOLE WALL THROUGHOUT A SUBSTANTIAL LENGTH OF THE BORE HOLE WALL ADJACENT SAID PETROLEUM-BEARING STRATA AND CONTINUOUSLY CIRCULATING SUBSTANTIALLY THE ENTIRE BODY OF LIQUID LONGITUDINALLY OF THE BORE HOLE BETWEEN THE UPPER AND LOWER LEVELS OF SAID BODY OF LIQUID SO AS TO SUBSTANTIALL YDONTINUOUSLY MOVE THE LIQUID ALONG UNINTERRUPTED BORE WALL PORTIONS THROUGHOUT A SUBSTANTIAL LENGTH OF THE BORE HOLE WALL AND IN INTIMATE CONTACT THEREWITH SO AS TO HEAT A LARGE AREA OF THE BORE HOLE WALL TO A SUBSNATIALLY UNIFORM TEMPERATURE TO EFFECTIVELY PROVIDE A LINE SOURCE OF HAT TO THE ADJACENT STRATA.
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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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |