US3024191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fracturing earth formations
Assignee: Pan American Petroleum Corp
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Filing: 1959-10-28
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Granted: 1962-03-06
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Expires: 1979-10-28
Abstract
No abstract record available.
Inventors
- 👤 Loyd W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; Y; Y10; Y10S; Y10S507/00; Y10S507/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A COMPOSTION SUITABLE FOR FRACTURING A FORMATION PENETRATED BY A WELL AND FOR CARRYING LARGE PROPS INTO THE FRACTURE CONSISTING ESSENTIALLY OF WATER, SUFFICIENT OF AN ALKALI METAL CARBOXYMETHYL CELLULOSE TO INCREASE THE VISCOITY OF THE RESULTING AQUEOUS SOLUTION TO A VALUE GREATER THAN 30 CENTIPOISES, AND SUFFICIENT OF AN ALKALI METAL PERBORATE TO DECREASE THE VISCOSITY OF THE SOLUTION TO A VALUE OF 30 CENTIPOISES IN A TIME BETWEEN ABOUT 1 AND ABOUT 24 HOURSS AT THE TEMPERATURE OF THE FORMATION TO BE FRACTURED, WHEREBY THE SOLUTION MAY BE WITHDRAWN, LEAVING THE FORMATION AND FRACTURE SUBSTANTIALLY FREE FROM THE SOLID RESIDUE CHARACTERISTICALLY PRODUCED BY OTHER HYDRATABLE COLLOIDS AND OTHER GEL BREAKERSS.
Claim 2
Dependent Claim
112 words
A COMPOSTION SUITABLE FOR FRACTURING A FORMATION PENETRATED BY A WELL AND FOR CARRYING LARGE PROPS INTO THE FRACTURE CONSISTING ESSENTIALLY OF WATER, SUFFICIENT OF AN ALKALI METAL CARBOXYMETHYL CELLULOSE TO INCREASE THE VISCOITY OF THE RESULTING AQUEOUS SOLUTION TO A VALUE GREATER THAN 30 CENTIPOISES, AND SUFFICIENT OF AN ALKALI METAL PERBORATE TO DECREASE THE VISCOSITY OF THE SOLUTION TO A VALUE OF 30 CENTIPOISES IN A TIME BETWEEN ABOUT 1 AND ABOUT 24 HOURSS AT THE TEMPERATURE OF THE FORMATION TO BE FRACTURED, WHEREBY THE SOLUTION MAY BE WITHDRAWN, LEAVING THE FORMATION AND FRACTURE SUBSTANTIALLY FREE FROM THE SOLID RESIDUE CHARACTERISTICALLY PRODUCED BY OTHER HYDRATABLE COLLOIDS AND OTHER GEL BREAKERSS.
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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |