US2712355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic fracturing of earth formations
Assignee: Standard Oil Co
•
Filing: 1949-12-20
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Granted: 1955-07-05
•
Expires: 1969-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jean M Hoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD OF INCREASING THE PRODUCTIVITY OF A POROUS PRODUCING FORMATION TRANVERSED BY A WELL BORE WHICH COMPRISES DISPOSING ADJACENT AND ABOVE SAID FORMATION A COLUMN OF HYDROCARBON GEL, APPLYING TO SAID GEL A GREATERTHAN-FORMATION BREAKDOWN PRESSURE PRODUCED BY INITIATING A DEFLAGRATING EXPLOSIVE TO LIBERATE A HIGH PRESSURE GAS ABOVE SAID COLUMN, THE SAID GAS BEING SUFFICIENT IN VOLUME AND PRESSURE TO CONTINUE THE APPLICATION OF THE PRESSURE OF SAID GAS ON SAID COLUMN FOR A SUSTAINED PERIOD UNTIL AT LEAST A PART OF THE GEL ENTERS A FRACTURE IN THE FORMATION WHEREUPON A DROP IN PRESSURE OCCURS, SUBSEQUENTLY REVERTING THE GEL WITHIN SAID FRACTURE TO A HYDROCARBON LIQUID BY ADDING A GEL BREAKER THERETO, AND PRODUCING THE HYDROCARBON LIQUID FROM THE FRACTURE.
Claim 2
Independent Claim
123 words
A METHOD OF INCREASING THE PRODUCTIVITY OF A POROUS PRODUCING FORMATION TRANVERSED BY A WELL BORE WHICH COMPRISES DISPOSING ADJACENT AND ABOVE SAID FORMATION A COLUMN OF HYDROCARBON GEL, APPLYING TO SAID GEL A GREATERTHAN-FORMATION BREAKDOWN PRESSURE PRODUCED BY INITIATING A DEFLAGRATING EXPLOSIVE TO LIBERATE A HIGH PRESSURE GAS ABOVE SAID COLUMN, THE SAID GAS BEING SUFFICIENT IN VOLUME AND PRESSURE TO CONTINUE THE APPLICATION OF THE PRESSURE OF SAID GAS ON SAID COLUMN FOR A SUSTAINED PERIOD UNTIL AT LEAST A PART OF THE GEL ENTERS A FRACTURE IN THE FORMATION WHEREUPON A DROP IN PRESSURE OCCURS, SUBSEQUENTLY REVERTING THE GEL WITHIN SAID FRACTURE TO A HYDROCARBON LIQUID BY ADDING A GEL BREAKER THERETO, AND PRODUCING THE HYDROCARBON LIQUID FROM THE FRACTURE.
References Cited (Backward Citations)
GB191128030A
Cited
US1588643A
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US1856912A
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US2171416A
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US2316596A
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US2596845A
Cited
US2618343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |