US3241613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shutting off water in vertical fractures
Assignee: Atlantic Richfield Co
•
Filing: 1962-02-19
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Granted: 1966-03-22
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Loyd R Kern
- 👤 Reece E Wyant
- 👤 Thomas K Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:59
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138; E21B43/00; E21B43/25; E21B43/26; E21B43/267
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A METHOD OF PROPPING AND AT THE SAME TIME PLUGGING THE LOWER PART OF A SUBSURFACE EARTH FORMATION FRACTURE, WHICH METHOD COMPRISES PASSING INTO SAID FRACTURE A FIRST MIXTURE OF A CARRIER FLUID AND A PARTICLE-FORM PROPPING AGENT HAVING A SIZE GREATER THAN THE SIZE OF THE OPENINGS OF A U.S. SIEVE SERIES NO. 60 SCREEN AND A PARTICULATE SEALING MATERIAL COMPOSED OF A MATERIAL DIFFERENT FROM SAID PARTICLE-FORM PROPPING AGENT AND HAVING A PARTICLE SERIES NO. 80 SCREEN, SAID PARTICLE-FORM PROPPING AGENT HAVING A SETTLING RATE IN SAID CARRIER FLUID OF AT LEAST 0.1 FOOT PER MINUTE WHEREBY THE PARTICLES OF SAID PARTICLEFORM PROPPING AGENT SETTLE TO FORM A PACK OF SAID PARTICLEFORM PROPPING AGENT IN SAID FRACTURE, SAID PARTICULATE SEALING MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO SEAL OPENINGS BETWEEN THE DEPOSITED PARTICLES OF SAID PARTICLE-FORM PROPPING AGENT, AND THEREAFTER PASSING INTO SAID FRACTURE A SECOND MIXTURE OF A CARRIER FLUID CONTAINING ONLY FRACTURE PROPPING AGENT.
Claim 2
Independent Claim
159 words
A METHOD OF PROPPING AND AT THE SAME TIME PLUGGING THE LOWER PART OF A SUBSURFACE EARTH FORMATION FRACTURE, WHICH METHOD COMPRISES PASSING INTO SAID FRACTURE A FIRST MIXTURE OF A CARRIER FLUID AND A PARTICLE-FORM PROPPING AGENT HAVING A SIZE GREATER THAN THE SIZE OF THE OPENINGS OF A U.S. SIEVE SERIES NO. 60 SCREEN AND A PARTICULATE SEALING MATERIAL COMPOSED OF A MATERIAL DIFFERENT FROM SAID PARTICLE-FORM PROPPING AGENT AND HAVING A PARTICLE SERIES NO. 80 SCREEN, SAID PARTICLE-FORM PROPPING AGENT HAVING A SETTLING RATE IN SAID CARRIER FLUID OF AT LEAST 0.1 FOOT PER MINUTE WHEREBY THE PARTICLES OF SAID PARTICLEFORM PROPPING AGENT SETTLE TO FORM A PACK OF SAID PARTICLEFORM PROPPING AGENT IN SAID FRACTURE, SAID PARTICULATE SEALING MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO SEAL OPENINGS BETWEEN THE DEPOSITED PARTICLES OF SAID PARTICLE-FORM PROPPING AGENT, AND THEREAFTER PASSING INTO SAID FRACTURE A SECOND MIXTURE OF A CARRIER FLUID CONTAINING ONLY FRACTURE PROPPING AGENT.
References Cited (Backward Citations)
CA621081A
Cited
US2788072A
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US2774431A
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US2953223A
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US3046222A
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US3075581A
Cited
US3127937A
Cited
US3155159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |