US3149674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 01:01
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.
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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) | 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 |