Patent US3718189A successfully refreshed from Google Patents.
US3718189A
Expired / Lapsed
US
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Consolidation of incompetent formations
Assignee: ExxonMobil Upstream Research Co
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Filing: 1969-07-30
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Granted: 1973-02-27
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Expires: 1989-07-30
Abstract
Abstract A METHOD FOR THE INJECTION OF TWO OR MORE REACTIVE LIQUIDS, A RESIN AND A CATALYST FOR EXAMPLE, INTO A WELL IN SEQUENCE WHEREIN AT LEAST ONE OF THE REACTIVE LIQUIDS IS SURROUNDED BY AN ANNULAR STREAM OF AN INERT, SUBSTANTIALLY IMMISCIBLE LIQUID OF LOWER VISCOSITY AS IT MOVES DOWNWARDLY IN THE WELLBORE.
Inventors
- 👤 W Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:49
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |