US3385361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion drive well stimulation
Assignee: Gulf Research and Development Co
•
Filing: 1966-12-19
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Granted: 1968-05-28
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Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 Paul L Terwilliger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:15
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/30; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A METHOD OF INCREASING PRODUCTION FROM A SUBTERRANEAN RESERVOIR STIMULATED BY INSITU TECHNIQUES WHEREIN COMBUSTION SUPPORTING GAS IS INJECTED INTO THE RESERVOIR THROUGH A CENTRALLY LOCATED GAS INJECTION WELL SURROUNDED BY A PLURALITY OF WELLS COMPRISING: INJECTING INTO A WELL ADJACENT THE GAS INJECTION WELL, A LIQUID WHICH IS SOLUBLE IN OIL AND HAS A LOWER VISCOSITY THAN THE RESERVOIR FLUIDS; CONTINUING INJECTION OF THE LOW VISCOSITY LIQUID TO DISPLACE THE LIQUID THROUGH THE FORMATION TO AN ADJACENT PRODUCING WELL AND FORM A FLOWING SINK FLOWING FROM THE LIQUID INJECTION WELL INTO THE PRODUCING WELL; AND PRODUCING THE INJECTED LIQUIDS AND THE RESERVOIR FLUIDS WHICH ENTER THE PRODUCING WELL.
References Cited (Backward Citations)
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Cited
US3165154A
Cited
US3253652A
Cited
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Cited
US3332480A
Cited
US3316962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |