Patent US3339634A successfully refreshed from Google Patents.
US3339634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Initiation of combustion in a subterranean formation
Assignee: Mobil Oil AS
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Filing: 1965-03-05
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Granted: 1967-09-05
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Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Orville E Van Meter
- 👤 Theodore A Bertness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:20
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A PROCESS FOR INITIATING COMBUSTION WITHIN A SUBTERRANEAN FORMATION CONTAINING HYDROCARBON MATERIAL AND PENETRATED BY AN INPUT MEANS COMPRISING AT LEAST ONE INPUT WELL AND OUTPUT MEANS COMPRISING AT LEAST ONE OUTPUT WELL, ONE OF SAID WELLS BEING AN IGNITION WELL, COMPRISING: (A) PASSING INTO SAID FORMATION THROUGH SAID IGNITION WELL A HYDROCARBON SOLVENT IN WHICH SAID HYDROCARBON MATERIAL IS SOLUBLE AND WHICH HAS A VISCOSITY LOWER THAN THAT OF SAID HYDROCARBON MATERIAL WHEREBY SAID HYDROCARBON MATERIAL IS DISSOLVED AND ITS VISCOSITY REDUCED AND IS DISPLACED FROM THE VICINITY OF SAID WELL. (B) PASSING INTO SAID FORMATION THROUGH SAID WELL A SOLVENT WHICH HAS MUTUAL SOLUBILITY FOR HYDROCARBONS AND WATER WHEREBY SAID HYDROCARBON SOLVENT AND SAID HYDROCARBON MATERIAL ARE DISPLACED FROM THE VICINITY OF SAID WELL. (C) PASSING INTO SAID FORMATION THROUGH SAID WELL WATER WHEREBY SAID SOLVENT WHICH HAS MUTUAL SOLUBILITY FOR HYDROCARBONS AND WATER IS DISPLACED FROM THE VICINITY OF SAID WELL, AND (D) THEREAFTER INITIATING COMBUSTION WITHIN SAID FORMATION AT SAID WELL IN THE PRESENCE OF AN OXIDIZING FLUID.
Claim 2
Dependent Claim
172 words
A PROCESS FOR INITIATING COMBUSTION WITHIN A SUBTERRANEAN FORMATION CONTAINING HYDROCARBON MATERIAL AND PENETRATED BY AN INPUT MEANS COMPRISING AT LEAST ONE INPUT WELL AND OUTPUT MEANS COMPRISING AT LEAST ONE OUTPUT WELL, ONE OF SAID WELLS BEING AN IGNITION WELL, COMPRISING: (A) PASSING INTO SAID FORMATION THROUGH SAID IGNITION WELL A HYDROCARBON SOLVENT IN WHICH SAID HYDROCARBON MATERIAL IS SOLUBLE AND WHICH HAS A VISCOSITY LOWER THAN THAT OF SAID HYDROCARBON MATERIAL WHEREBY SAID HYDROCARBON MATERIAL IS DISSOLVED AND ITS VISCOSITY REDUCED AND IS DISPLACED FROM THE VICINITY OF SAID WELL. (B) PASSING INTO SAID FORMATION THROUGH SAID WELL A SOLVENT WHICH HAS MUTUAL SOLUBILITY FOR HYDROCARBONS AND WATER WHEREBY SAID HYDROCARBON SOLVENT AND SAID HYDROCARBON MATERIAL ARE DISPLACED FROM THE VICINITY OF SAID WELL. (C) PASSING INTO SAID FORMATION THROUGH SAID WELL WATER WHEREBY SAID SOLVENT WHICH HAS MUTUAL SOLUBILITY FOR HYDROCARBONS AND WATER IS DISPLACED FROM THE VICINITY OF SAID WELL, AND (D) THEREAFTER INITIATING COMBUSTION WITHIN SAID FORMATION AT SAID WELL IN THE PRESENCE OF AN OXIDIZING FLUID.
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |