Patent US2749990A successfully refreshed from Google Patents.
US2749990A
Expired / Lapsed
US
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Kick-off for gas-lift wells
Assignee: Phillips Petroleum Co
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Filing: 1951-10-23
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Granted: 1956-06-12
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Expires: 1971-10-23
Abstract
No abstract record available.
Inventors
- 👤 Paul G Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:51
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/122; E21B43/25; E21B43/26; E21B43/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD FOR STARTING A NATURAL GAS-LIFT FLOW OF OIL AND GAS IN A PRODUCTION CONDUIT DISPOSED IN A DEAD GASLIFT OIL WELL COMPRISING INTRODUCING A KICKOFF BOMB OF COMBUSTIBLE MATERIAL INTO SAID PRODUCTION CONDUIT AND POSITIONING SAID BOMB AT A POINT WITHIN SAID CONDUIT ADJACENT AND BELOW THE POINT OF ENTRY OF OIL AND NATURAL GAS INTO SAID CONDUIT, INITIATING COMBUSTION OF SAID COMBUSTIBLE MATERIAL IN SAID BOMB BY SUBMERGING SAID BOMB WITHIN THE OIL IN SAID CONDUIT WHEREBY COMBUSTION GAS IS EVOLVED WHOLLY WITHIN SAID CONDUIT AND SAID COMBUSTION GAS COMMINGLES WITH SAID OIL AND GAS THEREIN, FLOWING THE COMMINGLED OIL AND GAS UP SAID CONDUIT AND REMOVING THE FLOWING OIL AND GAS FROM THE UPPER END PORTION OF SAID CONDUIT.
Claim 2
Independent Claim
123 words
A METHOD FOR STARTING A NATURAL GAS-LIFT FLOW OF OIL AND GAS IN A PRODUCTION CONDUIT DISPOSED IN A DEAD GASLIFT OIL WELL COMPRISING INTRODUCING A KICKOFF BOMB OF COMBUSTIBLE MATERIAL INTO SAID PRODUCTION CONDUIT AND POSITIONING SAID BOMB AT A POINT WITHIN SAID CONDUIT ADJACENT AND BELOW THE POINT OF ENTRY OF OIL AND NATURAL GAS INTO SAID CONDUIT, INITIATING COMBUSTION OF SAID COMBUSTIBLE MATERIAL IN SAID BOMB BY SUBMERGING SAID BOMB WITHIN THE OIL IN SAID CONDUIT WHEREBY COMBUSTION GAS IS EVOLVED WHOLLY WITHIN SAID CONDUIT AND SAID COMBUSTION GAS COMMINGLES WITH SAID OIL AND GAS THEREIN, FLOWING THE COMMINGLED OIL AND GAS UP SAID CONDUIT AND REMOVING THE FLOWING OIL AND GAS FROM THE UPPER END PORTION OF SAID CONDUIT.
References Cited (Backward Citations)
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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 |