US2749989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means of completing a well
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-10-31
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Granted: 1956-06-12
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Expires: 1971-10-31
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:14
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A METHOD OF INTRODUCING CEMENT INTO A CASED AND TUBED WELL WITHOUT ALTERING THE SETTING OF THE TUBING WITH RESPECT TO THE WELL HEAD, SAID WELL HAVING BEEN PREVIOUSLY COMPLETED SO THAT THE LOWER END OF THE TUBING WAS POSITIONED ABOVE THE BOTTOM OF THE WELL WHICH COMPRISES LOWERING A TUBULAR MEMBER OPEN AT BOTH ENDS THROUGH SAID TUBING UNTIL THE LOWER END OF SAID TUBULAR MEMBER IS POSITIONED BELOW THE LOWER END OF THE TUBING WHILE THE UPPER END OF SAID TUBULAR MEMBER IS POSITIONED WITHIN SAID TUBING; SECURING THE UPPER END OF SAID TUBULAR MEMBER IN SAID TUBING AND SEALING THE ANNULAR SPACE BETWEEN THE TUBULAR MEMBER AND THE TUBING SO THAT FLUID IS UNABLE TO FLOW PAST SAID TUBULAR MEMBER THROUGH SAID ANNULAR SPACE; INTRODUCING CEMENT SLURRY THROUGH SAID TUBING AND SAID TUBULAR MEMBER UNTIL THE DESIRED QUANTITY OF SAID SLURRY HAS BEEN INTRODUCED INTO THE WELL; WASHING OUT EXCESS CEMENT SLURRY BY CIRCULATING FLUID DOWNWARDLY THROUGH THE ANNULAR SPACE BETWEEN THE TUBING AND THE CASING AND UPWARDLY THROUGH SAID TUBULAR MEMBER AND SAID TUBING; AND WITHDRAWING SAID TUBULAR MEMBER FROM SAID TUBING.
Claim 2
Independent Claim
186 words
A METHOD OF INTRODUCING CEMENT INTO A CASED AND TUBED WELL WITHOUT ALTERING THE SETTING OF THE TUBING WITH RESPECT TO THE WELL HEAD, SAID WELL HAVING BEEN PREVIOUSLY COMPLETED SO THAT THE LOWER END OF THE TUBING WAS POSITIONED ABOVE THE BOTTOM OF THE WELL WHICH COMPRISES LOWERING A TUBULAR MEMBER OPEN AT BOTH ENDS THROUGH SAID TUBING UNTIL THE LOWER END OF SAID TUBULAR MEMBER IS POSITIONED BELOW THE LOWER END OF THE TUBING WHILE THE UPPER END OF SAID TUBULAR MEMBER IS POSITIONED WITHIN SAID TUBING; SECURING THE UPPER END OF SAID TUBULAR MEMBER IN SAID TUBING AND SEALING THE ANNULAR SPACE BETWEEN THE TUBULAR MEMBER AND THE TUBING SO THAT FLUID IS UNABLE TO FLOW PAST SAID TUBULAR MEMBER THROUGH SAID ANNULAR SPACE; INTRODUCING CEMENT SLURRY THROUGH SAID TUBING AND SAID TUBULAR MEMBER UNTIL THE DESIRED QUANTITY OF SAID SLURRY HAS BEEN INTRODUCED INTO THE WELL; WASHING OUT EXCESS CEMENT SLURRY BY CIRCULATING FLUID DOWNWARDLY THROUGH THE ANNULAR SPACE BETWEEN THE TUBING AND THE CASING AND UPWARDLY THROUGH SAID TUBULAR MEMBER AND SAID TUBING; AND WITHDRAWING SAID TUBULAR MEMBER FROM SAID TUBING.
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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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |