Patent US2906340A successfully refreshed from Google Patents.
US2906340A
Expired / Lapsed
US
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Method of treating a petroleum producing formation
Assignee: Texaco Inc
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Filing: 1956-04-05
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Granted: 1959-09-29
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Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Herzog Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:17
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR TREATING AN UNDERGROUNG PETROLEUM PRODUCING FORMATION PENETRATED BY A WELL BORE WHICH COMPRISES INTRODUCING VIA SAID WELL BORE INTO A PETROLEUM PRODUCING FORMATION A LIQUID PETROLEUM OIL WHICH UPON THERMAL CRACKING TENDS TO DEPOSIT A SOLID COMBUSTIBLE CARBONACCEOUS RESIDUE, SUBSEQUENTLY INTRODUCING VIA SAID WELL BORE A COMBUSTION SUPPORTING GAS INTO THAT PORTION OF SAID PETROLEUM PRODUCING FORMATION COTAINING SAID LIQUID PETROLEUM OIL, EFFECTING COMBUSTION OF THE INJECTED LIQUID PETROLEUM OIL THUS INTRODUCED WITHIN SAID PETROLEUM PRODUCING FORMATION, DISCONTINUING THE INTRODUCTION OF SAID COMBUSTION SUPPORTING GAS INTO SAID FORMATION SO AS TO TERMINATE THE IN SITU COMBUSTION PROCESS THEREIN, AND SUBSEQUENTLY PRODUCING PETROLEUM VIA SAID WELL BORE FROM SAID FORMATION THROUGH THE PORTION OF SAID FORMATION WHEREIN SAID INTRODUCED LIQUID PETROLEUM OIL WAS SUBJECTED TO COMBUSTION.
Claim 2
Dependent Claim
128 words
A PROCESS FOR TREATING AN UNDERGROUNG PETROLEUM PRODUCING FORMATION PENETRATED BY A WELL BORE WHICH COMPRISES INTRODUCING VIA SAID WELL BORE INTO A PETROLEUM PRODUCING FORMATION A LIQUID PETROLEUM OIL WHICH UPON THERMAL CRACKING TENDS TO DEPOSIT A SOLID COMBUSTIBLE CARBONACCEOUS RESIDUE, SUBSEQUENTLY INTRODUCING VIA SAID WELL BORE A COMBUSTION SUPPORTING GAS INTO THAT PORTION OF SAID PETROLEUM PRODUCING FORMATION COTAINING SAID LIQUID PETROLEUM OIL, EFFECTING COMBUSTION OF THE INJECTED LIQUID PETROLEUM OIL THUS INTRODUCED WITHIN SAID PETROLEUM PRODUCING FORMATION, DISCONTINUING THE INTRODUCTION OF SAID COMBUSTION SUPPORTING GAS INTO SAID FORMATION SO AS TO TERMINATE THE IN SITU COMBUSTION PROCESS THEREIN, AND SUBSEQUENTLY PRODUCING PETROLEUM VIA SAID WELL BORE FROM SAID FORMATION THROUGH THE PORTION OF SAID FORMATION WHEREIN SAID INTRODUCED LIQUID PETROLEUM OIL WAS SUBJECTED TO COMBUSTION.
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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |