US3217801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diluted malleable props for formation fractures
Assignee: Pan American Petroleum Corp
•
Filing: 1961-04-03
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Granted: 1965-11-16
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Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Fast
- 👤 George C Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:15
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
105 words
A METHOD OF INCREASING THE RATE OF FLOW OF FLUIDS THROUGH A FRACTURE IN AN EARTH FORMATION PENETRATED BY A WELL, SAID FORMATION HAVING A HARDNESS FACTOR OF AT LEAST ABOUT 300,000 COMPRISING PLACING WITHIN SAID FRACTURE GRANULAR PARTICLES OF A PROPPING MATERIAL AND OF A TEMPORARY DILUTING MATERIAL USED TO SPACE SAID PARTICLES OF PROPPING MATERIALS AND SUBSEQUENTLY DISSOVLING SAID TEMPORARY DILUTING MATERIAL, SAID PROPPING MATERIAL BEING INSOLUBLE IN OIL AND WATER, CAPABLE OF DEFORMING UNDER LOAD WITHOUT SHATTERING, HAVING A MELTING POINT ABOVE THE TEMPERATURE OF SAID FORMATION AND HAVING A DEFORMABILITY INDEX OF FROM ABOUT 5 TO ABOUT 60, SAID TEMPORARY DILUT-
Claim 2
Independent Claim
105 words
A METHOD OF INCREASING THE RATE OF FLOW OF FLUIDS THROUGH A FRACTURE IN AN EARTH FORMATION PENETRATED BY A WELL, SAID FORMATION HAVING A HARDNESS FACTOR OF AT LEAST ABOUT 300,000 COMPRISING PLACING WITHIN SAID FRACTURE GRANULAR PARTICLES OF A PROPPING MATERIAL AND OF A TEMPORARY DILUTING MATERIAL USED TO SPACE SAID PARTICLES OF PROPPING MATERIALS AND SUBSEQUENTLY DISSOVLING SAID TEMPORARY DILUTING MATERIAL, SAID PROPPING MATERIAL BEING INSOLUBLE IN OIL AND WATER, CAPABLE OF DEFORMING UNDER LOAD WITHOUT SHATTERING, HAVING A MELTING POINT ABOVE THE TEMPERATURE OF SAID FORMATION AND HAVING A DEFORMABILITY INDEX OF FROM ABOUT 5 TO ABOUT 60, SAID TEMPORARY DILUT-
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |