Patent US3084744A successfully refreshed from Google Patents.
US3084744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miscible flooding method of secondary recovery
Assignee: ConocoPhillips Co
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Filing: 1959-09-18
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Granted: 1963-04-09
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Expires: 1979-09-18
Abstract
No abstract record available.
Inventors
- 👤 John N Dew
- 👤 Philip W Reed
- 👤 William L Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:02
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
206 words
A METHOD OF RECOVERING HYDROCARBONS FROM A SUBTERRANEAN FORMATION CONTAINING A PREDOMINANTLY ASPHALTIC CRUDE OIL AND BEING TRANSVERSED BY A PLURALITY OF WELLS COMPRISING THE FOLLOWING STEPS: (A) INJECTING A FIRST LIQUID THROUGH AT LEAST ONE OF SAID WELLS INTO SAID FORMATION TO DISPLACE SAID CRUDE FROM THE FORMATION ABOUT SAID WELL, SAID FIRST LIQUID BEING NONAQUEOUS AND NONASPHALT PRECIPITATING; (B) TERMINATING THE INJECTION OF SAID FIRST LIQUID UPON FORMING A DEPOSIT OF SAID FIRST LIQUID ABOUT SAID WELL; (C) INJECTING A SECOND LIQUID THROUGH SAID WELL INTO SAID FORMATION DISPLACING SAID FIRST LIQUID AND CRUDE OIL OUTWARDLY FROM SAID WELL IN SUCH A MANNER THAT SAID FIRST LIQUID IS MIXED WITH THE CRUDE OIL AND SAID SECOND LIQUID THEREBY ELIMINATING SAID FIRST LIQUID AS A DISTINCT DEPOSIT IN THE FORMATION AT A LOCATION INTERMEDIATE OF THE REMAINING WELLS, SAID SECOND LIQUID BEING NONAQUEOUS AND ASPHALT PRECIPITATING; (D) INJECTING FURTHER AMOUNTS OF SAID SECOND LIQUID WHEREBY ASPHALT IS PRECIPITATED WITHIN SAID FORMATION ALTERING THE PERMEABILITY AND INCREASING UNIFORMITY OF DISPLACEMENT OF SAID HYDROCARBONS IN THE FORMATION; (E) DISPLACING SAID HYDROCARBONS FROM THE FORMATION BY THE CONTINUED INJECTION OF SAID SECOND LIQUID; AND (F) RECOVERING SAID HYDROCARBONS FROM SAID FORMATION THROUGH THE REMAINING WELLS TO THE SURFACE.
Claim 2
Independent Claim
206 words
A METHOD OF RECOVERING HYDROCARBONS FROM A SUBTERRANEAN FORMATION CONTAINING A PREDOMINANTLY ASPHALTIC CRUDE OIL AND BEING TRANSVERSED BY A PLURALITY OF WELLS COMPRISING THE FOLLOWING STEPS: (A) INJECTING A FIRST LIQUID THROUGH AT LEAST ONE OF SAID WELLS INTO SAID FORMATION TO DISPLACE SAID CRUDE FROM THE FORMATION ABOUT SAID WELL, SAID FIRST LIQUID BEING NONAQUEOUS AND NONASPHALT PRECIPITATING; (B) TERMINATING THE INJECTION OF SAID FIRST LIQUID UPON FORMING A DEPOSIT OF SAID FIRST LIQUID ABOUT SAID WELL; (C) INJECTING A SECOND LIQUID THROUGH SAID WELL INTO SAID FORMATION DISPLACING SAID FIRST LIQUID AND CRUDE OIL OUTWARDLY FROM SAID WELL IN SUCH A MANNER THAT SAID FIRST LIQUID IS MIXED WITH THE CRUDE OIL AND SAID SECOND LIQUID THEREBY ELIMINATING SAID FIRST LIQUID AS A DISTINCT DEPOSIT IN THE FORMATION AT A LOCATION INTERMEDIATE OF THE REMAINING WELLS, SAID SECOND LIQUID BEING NONAQUEOUS AND ASPHALT PRECIPITATING; (D) INJECTING FURTHER AMOUNTS OF SAID SECOND LIQUID WHEREBY ASPHALT IS PRECIPITATED WITHIN SAID FORMATION ALTERING THE PERMEABILITY AND INCREASING UNIFORMITY OF DISPLACEMENT OF SAID HYDROCARBONS IN THE FORMATION; (E) DISPLACING SAID HYDROCARBONS FROM THE FORMATION BY THE CONTINUED INJECTION OF SAID SECOND LIQUID; AND (F) RECOVERING SAID HYDROCARBONS FROM SAID FORMATION THROUGH THE REMAINING WELLS TO THE SURFACE.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |