Patent US3199591A successfully refreshed from Google Patents.
US3199591A
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Subterranean formation fracturing method and composition
Assignee: ConocoPhillips Co
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Filing: 1962-12-07
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Granted: 1965-08-10
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 James A Kepley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:41
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; Y; Y10; Y10S; Y10S507/00; Y10S507/92; Y10S507/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD FOR TREATING A SUBTERRANEAN FORMATION TO REDUCE SULFATE FORMATION WHICH COMPRISES FRACTURING SAID FORMATION WITH A MIXTURE CONSISTING ESSENTIALLY OF A CARRIER FLUID, A PROPPING AGENT, A BACTERICIDE EFFECTIVE AGAINST SULFATE REDUCING BACTERIA, SAID BACTERICIDE BEING PRESENT IN AT LEAST 100 PARTS PER MILLION PARTS OF INJECTION MIXTURE AND PRODUCING FLUID FROM SAID SUBTERRANEAN FORMATION INCLUDING SUBSTANTIALLY ALL OF SAID MIXTURE.
Claim 2
Independent Claim
63 words
A METHOD FOR TREATING A SUBTERRANEAN FORMATION TO REDUCE SULFATE FORMATION WHICH COMPRISES FRACTURING SAID FORMATION WITH A MIXTURE CONSISTING ESSENTIALLY OF A CARRIER FLUID, A PROPPING AGENT, A BACTERICIDE EFFECTIVE AGAINST SULFATE REDUCING BACTERIA, SAID BACTERICIDE BEING PRESENT IN AT LEAST 100 PARTS PER MILLION PARTS OF INJECTION MIXTURE AND PRODUCING FLUID FROM SAID SUBTERRANEAN FORMATION INCLUDING SUBSTANTIALLY ALL OF SAID MIXTURE.
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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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |