Patent US2965867A successfully refreshed from Google Patents.
Patent US3149674A successfully refreshed from Google Patents.
US3149674A
Expired / Lapsed
US
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Fracturing of subsurface earth formations
Assignee: Jersey Production Research Co
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Filing: 1961-08-23
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Granted: 1964-09-22
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Expires: 1981-08-23
Abstract
No abstract record available.
Inventors
- 👤 Henry G Schutze
- 👤 Gene D Thompson
- 👤 Jr Herbert W H Meyer
- 👤 Benjamin F Pennington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:19
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/267; C; C09; C09K; C09K8/00; C09K8/60; C09K8/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A METHOD FOR FRACTURING A SUBSURFACE EARTH FORMATION IN WHICH SUFFICIENT HYDRAULIC PRESSURE IS EXERTED ON SAID FORMATION TO FRACTURE SAME, THE IMPROVEMENT WHICH COMPRISES INTRODUCING INTO THE RESULTING FRACTURES DEFORMABLE PARTICLES OF A COMPOSITION COMPRISING FROM ABOUT 2 TO ABOUT 8 PARTS BY WEIGHT OF FINELY DIVIDED AGGREGATE PER PART BY WEIGHT OF A SOLID THERMOPLASTIC POLYMER, SAID POLYMER PARTICLES DEFORMING WITHOUT CRUSHING OF SAID AGGREGATE UNDER EXISTING FORMATION BREAKDOWN PRESSURE, WHEREBY SAID FRACTURES ARE MAINTAINED OPEN FOR FLOW OF FLUID THERETHROUGH.
Claim 2
Dependent Claim
84 words
IN A METHOD FOR FRACTURING A SUBSURFACE EARTH FORMATION IN WHICH SUFFICIENT HYDRAULIC PRESSURE IS EXERTED ON SAID FORMATION TO FRACTURE SAME, THE IMPROVEMENT WHICH COMPRISES INTRODUCING INTO THE RESULTING FRACTURES DEFORMABLE PARTICLES OF A COMPOSITION COMPRISING FROM ABOUT 2 TO ABOUT 8 PARTS BY WEIGHT OF FINELY DIVIDED AGGREGATE PER PART BY WEIGHT OF A SOLID THERMOPLASTIC POLYMER, SAID POLYMER PARTICLES DEFORMING WITHOUT CRUSHING OF SAID AGGREGATE UNDER EXISTING FORMATION BREAKDOWN PRESSURE, WHEREBY SAID FRACTURES ARE MAINTAINED OPEN FOR FLOW OF FLUID THERETHROUGH.
References Cited (Backward Citations)
US2699212A
Cited
US2838116A
Cited
US2962095A
Cited
US2950247A
Cited
US3000442A
Cited
US2965172A
Cited
US3026938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |