US3219110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling incompetent formations
Assignee: ConocoPhillips Co
•
Filing: 1964-02-17
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Granted: 1965-11-23
•
Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 William L Martin
- 👤 John D Alexander
- 👤 John N Dew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/56; C09K8/57; C09K8/572
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD OF CONTROLLING INCOMPONENT FORMATIONS IN WELLS HAVING A HIGH BOTTOM HOLE TEMPERATURE WITH A HIGHLY PERMEABLE AND POROUS REFRACTORY CEMENT COMPRISING: (A) CLEANING THE FORMATION TO REMOVE THEREFROM HYDROCARBON PLUGGING MATERIALS BY IN SITU COMBUSTION, (B) FORMING A CAVITY IN THE WELL BORE AREA BY REMOVING THEREFROM THAT PORTION OF THE FORMATION WHICH HAS BEEN CLEANED, (C) POSITIONING IN SAID CAVITY AN AQUEOUS SLURRY OF SAND AND A HIGHLY REFRACTIVE CEMENT SELECTED FROM THE CLASS CONSISTING OF: (I) ALUMINOUS CEMENT, AND (II) ALKALI METAL SOLUBLE SILICATE CEMENT, (D) BLOWING THE SO-POSITIONED SLURRY WITH A GAS TO INCREASE THE PERMEABILITY THEREOF, (E) AFTER THE CEMENT HAS SET, COMPLETING THE WELL TO ALLOW PRODUCTION THROUGH THE CEMENT PLUG.
Claim 2
Independent Claim
118 words
A METHOD OF CONTROLLING INCOMPONENT FORMATIONS IN WELLS HAVING A HIGH BOTTOM HOLE TEMPERATURE WITH A HIGHLY PERMEABLE AND POROUS REFRACTORY CEMENT COMPRISING: (A) CLEANING THE FORMATION TO REMOVE THEREFROM HYDROCARBON PLUGGING MATERIALS BY IN SITU COMBUSTION, (B) FORMING A CAVITY IN THE WELL BORE AREA BY REMOVING THEREFROM THAT PORTION OF THE FORMATION WHICH HAS BEEN CLEANED, (C) POSITIONING IN SAID CAVITY AN AQUEOUS SLURRY OF SAND AND A HIGHLY REFRACTIVE CEMENT SELECTED FROM THE CLASS CONSISTING OF: (I) ALUMINOUS CEMENT, AND (II) ALKALI METAL SOLUBLE SILICATE CEMENT, (D) BLOWING THE SO-POSITIONED SLURRY WITH A GAS TO INCREASE THE PERMEABILITY THEREOF, (E) AFTER THE CEMENT HAS SET, COMPLETING THE WELL TO ALLOW PRODUCTION THROUGH THE CEMENT PLUG.
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |