US3242988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Increasing permeability of deep subsurface formations
Assignee: Atlantic Richfield Co
•
Filing: 1964-05-18
•
Granted: 1966-03-29
•
Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Mcguire
- 👤 Loyd R Kern
- 👤 Henry F Dunlap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:44
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/267; Y; Y10; Y10S; Y10S507/00; Y10S507/906; Y10S507/922; Y10S507/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A METHOD FOR INCREASING THE PERMEABILITY TO FLUIDS OF A SUBSURFACE EARTH FORMATIONS HAVING AT LEAST ONE FRACTURE EXTENDING FROM THE WALL OF A WELL BORE RADIALLY INTO SAID FORMATIONS AND THEREIN THE WALLS OF SAID FRACTURE EXERT A PRESSURE IN EXCESS OF 6,000 P.S.I. THE IMPROVEMENT COMPRISING FORCING INTO A FRACTURE A FLUID SUSPENSION OF A MANUFACTURED, FORMABLE MATERIALL SELECTED FROM THE GROUP CONSISTING OF METALLIC, CERAMIC AND PLASTIC PARTICLES OF GENERALLY SPHERICAL SHAPE AND MIXTURES THEREOF, SAID PARTICLES HAVING A RESISTANCE TO FRAGMENTATION AND A RESISTANCE TO DEFORMATION SUCH THAT THE AIR PERMEABILITY OF A SOLID, MULTI-LAYER PACK OF SAID PARTICLES DECREASES LESS THAN FIFTY-FOLD WHEN THE PRESSURE ON SAID PACK IS INCREASED FROM 6,000 TO 20,000 P.S.I. SAID PARTICLES HAVING A SETTLING RATE AT LEAST AS GREAT AS 0.1 FOOT PER MINUTE IN SAID FLUID SUSPENSION.
Claim 2
Dependent Claim
140 words
IN A METHOD FOR INCREASING THE PERMEABILITY TO FLUIDS OF A SUBSURFACE EARTH FORMATIONS HAVING AT LEAST ONE FRACTURE EXTENDING FROM THE WALL OF A WELL BORE RADIALLY INTO SAID FORMATIONS AND THEREIN THE WALLS OF SAID FRACTURE EXERT A PRESSURE IN EXCESS OF 6,000 P.S.I. THE IMPROVEMENT COMPRISING FORCING INTO A FRACTURE A FLUID SUSPENSION OF A MANUFACTURED, FORMABLE MATERIALL SELECTED FROM THE GROUP CONSISTING OF METALLIC, CERAMIC AND PLASTIC PARTICLES OF GENERALLY SPHERICAL SHAPE AND MIXTURES THEREOF, SAID PARTICLES HAVING A RESISTANCE TO FRAGMENTATION AND A RESISTANCE TO DEFORMATION SUCH THAT THE AIR PERMEABILITY OF A SOLID, MULTI-LAYER PACK OF SAID PARTICLES DECREASES LESS THAN FIFTY-FOLD WHEN THE PRESSURE ON SAID PACK IS INCREASED FROM 6,000 TO 20,000 P.S.I. SAID PARTICLES HAVING A SETTLING RATE AT LEAST AS GREAT AS 0.1 FOOT PER MINUTE IN SAID FLUID SUSPENSION.
References Cited (Backward Citations)
US2667224A
Cited
US2859819A
Cited
US2802531A
Cited
US2754910A
Cited
US2962095A
Cited
US2950247A
Cited
US3121464A
Cited
US3024191A
Cited
US3075581A
Cited
US3127937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |