US3285341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of water blocks from oil and gas wells
Assignee: Phillips Petroleum Co
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Filing: 1963-12-02
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Granted: 1966-11-15
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Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 Harry W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:37
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/32; E21B43/25; E21B43/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A PROCESS FOR REMOVING WATER BLOCK AROUND A PRODUCING WELL IN A HYDROCARBON-BEARING STRATUM AND A PRODUCING HYDROCARBONS FROM SAID WELL, COMPRISING THE STEPS OF: (1) FRACTURING SAID STRATUM OUTWARDLY FROM SAID WELL BY INJECTING A WATER-MISCIBLE SOLVENT FREE OF PROPPING AGENT INTO SAID STRATUM AT FRACTURING PRESSURE SO AS TO FRACTURE SAID STRATUM TO AN AREA BEHIND SAID WATER BLOCK; (2) CONTINUING INJECTION OF SAID SOLVENT THRU THE FRACTURE RESULTING FROM STEP (1) SO AS TO DEPOSIT A SUBSTANTIAL PORE VOLUME OF SAME IN THE PERMEABLE STRATUM BEHIND SAID WATER BLOCK; (3) THEREAFTER, REDUCING THE INJECTION PRESSURE SO AS TO ALLOW THE FORMED FRACTURES TO CLOSE AND TRAP SAID SOLVENT IN THE STRATUM BEHIND SAID WATER BLOCK; AND (4) THEREAFTER, OPENING SAID WELL TO PRODUCTION AND PRODUCING HYDROCARONS THEREFROM SO AS TO CAUSE SAID SOLVENT TO FLUSH WATER OF SAID BLOCK INTO SAID WELL.
Claim 2
Dependent Claim
145 words
A PROCESS FOR REMOVING WATER BLOCK AROUND A PRODUCING WELL IN A HYDROCARBON-BEARING STRATUM AND A PRODUCING HYDROCARBONS FROM SAID WELL, COMPRISING THE STEPS OF: (1) FRACTURING SAID STRATUM OUTWARDLY FROM SAID WELL BY INJECTING A WATER-MISCIBLE SOLVENT FREE OF PROPPING AGENT INTO SAID STRATUM AT FRACTURING PRESSURE SO AS TO FRACTURE SAID STRATUM TO AN AREA BEHIND SAID WATER BLOCK; (2) CONTINUING INJECTION OF SAID SOLVENT THRU THE FRACTURE RESULTING FROM STEP (1) SO AS TO DEPOSIT A SUBSTANTIAL PORE VOLUME OF SAME IN THE PERMEABLE STRATUM BEHIND SAID WATER BLOCK; (3) THEREAFTER, REDUCING THE INJECTION PRESSURE SO AS TO ALLOW THE FORMED FRACTURES TO CLOSE AND TRAP SAID SOLVENT IN THE STRATUM BEHIND SAID WATER BLOCK; AND (4) THEREAFTER, OPENING SAID WELL TO PRODUCTION AND PRODUCING HYDROCARONS THEREFROM SO AS TO CAUSE SAID SOLVENT TO FLUSH WATER OF SAID BLOCK INTO SAID WELL.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |