Patent US2649160A successfully refreshed from Google Patents.
US2649160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cementing casings in oil wells
Assignee: Atlantic Richfield Co
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Filing: 1952-03-15
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Granted: 1953-08-18
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Expires: 1972-03-15
Abstract
No abstract record available.
Inventors
- 👤 William K Williams
- 👤 Milton E Krogh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:45
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/42
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
178 words
THE METHOD OF FORMING A BOND BETWEEN THE WALL OF A FORMATION PENETRATED BY A BORE HOLE AND THE EXTERIOR OF A WELL CASING POSITIONED IN SAID BORE HOLE WHICH COMPRISES DRILLING THROUGH SAID FORMATION USING A DRILLING FLUID CINTAINING A FIRST REAGENT WHEREBY THERE IS DEPOSITED ON THE WALL OF SAID FORMATION A FILTER CAKE CONTAINING SAID FIRST REAGENT, POSITIONING SAID CASING IN SAID BORE HOLE IN A MANNER TO FORM AN ANNULAR SPACE BETWEEN SAID FILTER CAKE AND SAID CASING, INTRODUCING INTO SAID ANNULAR SPACE AND IN CONTACT WITH SAID FILTER CAKE A SOLUTION TO SUFFICIENT PRESSURE TO SUBJECTING SAID SOLUTION TO SUFFICIENT PRESSURE TO CAUSE A PORTION THEREOF TO PENETRATE SAID FILTER CAKE, REMOVING THE EXCESS OF SAID SOLUTION, AND INTRODUCING INTO SAID ANNULAR SPACE CEMENT CAPABLE OF BONDING TO THE EXTERIOR OF SAID CASING, SAID FIRST AND SECOND REAGENTS BEING CHEMICAL COMPOUNDS CAPABLE OF REACTING TO CONVERT SAID FILTER CAKE INTO A CEMENTITIOUS MATERIAL THERBY PROVIDING A FLUID IMPERVIOUS BOND WITH THE WALL OF SAID FORMATION AND WITH SAID CEMENT IN SAID ANNULAR SPACE.
Claim 2
Independent Claim
178 words
THE METHOD OF FORMING A BOND BETWEEN THE WALL OF A FORMATION PENETRATED BY A BORE HOLE AND THE EXTERIOR OF A WELL CASING POSITIONED IN SAID BORE HOLE WHICH COMPRISES DRILLING THROUGH SAID FORMATION USING A DRILLING FLUID CINTAINING A FIRST REAGENT WHEREBY THERE IS DEPOSITED ON THE WALL OF SAID FORMATION A FILTER CAKE CONTAINING SAID FIRST REAGENT, POSITIONING SAID CASING IN SAID BORE HOLE IN A MANNER TO FORM AN ANNULAR SPACE BETWEEN SAID FILTER CAKE AND SAID CASING, INTRODUCING INTO SAID ANNULAR SPACE AND IN CONTACT WITH SAID FILTER CAKE A SOLUTION TO SUFFICIENT PRESSURE TO SUBJECTING SAID SOLUTION TO SUFFICIENT PRESSURE TO CAUSE A PORTION THEREOF TO PENETRATE SAID FILTER CAKE, REMOVING THE EXCESS OF SAID SOLUTION, AND INTRODUCING INTO SAID ANNULAR SPACE CEMENT CAPABLE OF BONDING TO THE EXTERIOR OF SAID CASING, SAID FIRST AND SECOND REAGENTS BEING CHEMICAL COMPOUNDS CAPABLE OF REACTING TO CONVERT SAID FILTER CAKE INTO A CEMENTITIOUS MATERIAL THERBY PROVIDING A FLUID IMPERVIOUS BOND WITH THE WALL OF SAID FORMATION AND WITH SAID CEMENT IN SAID ANNULAR SPACE.
Claim 3
Dependent Claim
23 words
THE METHOD ACCORDING TO CLAIM 1 IN WHICH SAID FIRST AND SECOND REAGENTS ARE CHEMICAL COMPOUNDS WHICH REACT TO FORM A SOREL CEMENT.
References Cited (Backward Citations)
US2156220A
Cited
US2609881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |