Patent US2818119A successfully refreshed from Google Patents.
US2818119A
Expired / Lapsed
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Method for completing and working over wells
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-10-19
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Granted: 1957-12-31
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Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:35
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD FOR COMPLETING AND WORKING OVER A WELL WHICH HAS BEEN DRILLED THROUGH A PLURALITY OF HYDROCARBON PRODUCTIVE STRATA SEPARATED BY NON-PRODUCTIVE STRATA AND WHICH HAS A CASING CEMENTED IN THE WELL WHICH COMPRISES THE STEPS OF LOCATING A TUBING IN SAID WELL WITH ITS LOWER END ARRANGED IMMEDIATELY ABOVE THE UPPERMOST PRODUCTIVE STRATUM, PERFORATING SAID CASING AT A LEVEL ADJACENT SAID UPPERMOST PRODUCTIVE STRATUM, PRODUCING HYDROCARBONS FROM SAID UPPERMOST PRODUCTIVE STRATUM, SEALING SAID PERFORATIONS IN SAID UPPERMOST PRODUCTIVE STRATUM
Claim 2
Independent Claim
81 words
A METHOD FOR COMPLETING AND WORKING OVER A WELL WHICH HAS BEEN DRILLED THROUGH A PLURALITY OF HYDROCARBON PRODUCTIVE STRATA SEPARATED BY NON-PRODUCTIVE STRATA AND WHICH HAS A CASING CEMENTED IN THE WELL WHICH COMPRISES THE STEPS OF LOCATING A TUBING IN SAID WELL WITH ITS LOWER END ARRANGED IMMEDIATELY ABOVE THE UPPERMOST PRODUCTIVE STRATUM, PERFORATING SAID CASING AT A LEVEL ADJACENT SAID UPPERMOST PRODUCTIVE STRATUM, PRODUCING HYDROCARBONS FROM SAID UPPERMOST PRODUCTIVE STRATUM, SEALING SAID PERFORATIONS IN SAID UPPERMOST PRODUCTIVE STRATUM
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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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |