US2808886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective plugging of gas-injection oil wells in oil field gas-drive projects
Assignee: Individual
•
Filing: 1953-07-08
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Granted: 1957-10-08
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Expires: 1973-07-08
Abstract
No abstract record available.
Inventors
- 👤 Paul T Bail
- 👤 Bruce F Grant
- 👤 Klosky Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:08
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/5045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN THE RECOVERY OF OIL FROM UNDERGROUND OIL-BEARING FORMATIONS BY GAS INJECTION DRIVE, THE IMPROVEMENT WHICH COMPRISES VAPORIZING IN A STREAM OF MOISTURE-CONTAINING GAS, THE TETRACHLORIDE OF AN ELEMENT OF THE GROUP CONSISTING OF SILICON, TITANIUM, AND TIN, ADMIXING SAID TETRACHLORIDE IN THE VAPOR STATE WITH SAID MOISTURE CONTAINING GAS, THEREBY CAUSING SAID TETRACHLORIDE TO REACT WITH THE MOISTURE IN SAID GAS WITH THE RESULTANT FORMATION OF A SMOKE COMPRISING FINELY DIVIDED SOLID PARTICLES, FORCING THE RESULTANT SMOKE INTO THE SURROUNDING FORMATION, WHEREBY THE MORE PERMEABLE PORTIONS OF SAID FORMATION ARE AT LEAST PARTIALLY PLUGGED AND THE INJECTION RATE OF GAS INTO THE SAID FORMATION IS SUBSTANTIALLY LOWERED, AND RECOVERING OIL FROM SAID OIL-BEARING FORMATION BY SAID GAS INJECTION DRIVE.
Claim 2
Dependent Claim
120 words
IN THE RECOVERY OF OIL FROM UNDERGROUND OIL-BEARING FORMATIONS BY GAS INJECTION DRIVE, THE IMPROVEMENT WHICH COMPRISES VAPORIZING IN A STREAM OF MOISTURE-CONTAINING GAS, THE TETRACHLORIDE OF AN ELEMENT OF THE GROUP CONSISTING OF SILICON, TITANIUM, AND TIN, ADMIXING SAID TETRACHLORIDE IN THE VAPOR STATE WITH SAID MOISTURE CONTAINING GAS, THEREBY CAUSING SAID TETRACHLORIDE TO REACT WITH THE MOISTURE IN SAID GAS WITH THE RESULTANT FORMATION OF A SMOKE COMPRISING FINELY DIVIDED SOLID PARTICLES, FORCING THE RESULTANT SMOKE INTO THE SURROUNDING FORMATION, WHEREBY THE MORE PERMEABLE PORTIONS OF SAID FORMATION ARE AT LEAST PARTIALLY PLUGGED AND THE INJECTION RATE OF GAS INTO THE SAID FORMATION IS SUBSTANTIALLY LOWERED, AND RECOVERING OIL FROM SAID OIL-BEARING FORMATION BY SAID GAS INJECTION DRIVE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |