US3136361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fracturing formations in wells
Assignee: Phillips Petroleum Co
•
Filing: 1959-05-11
•
Granted: 1964-06-09
•
Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 John W Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:47
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/2605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF TREATING A FORMATION PENETRATED BY A WELL, WHICH COMPRISES INTRODUCING COMPRESSED GAS ONLY INTO SAID WELL, INCREASING THE PRESSURE OF SAID COMPRESSED GAS IN SAID WELL UNTIL SAID FORMATION IS FRACTURED, MAINTAINING PRESSURE ON SAID COMPRESSED GAS IN SAID WELL, AND SUBSEQUENTLY INTRODUCING INTO SAID FRACTURES AN AERATED LIQUID UNDER PRESSURE SO AS TO EXTEND SAID FRACTURES.
Claim 2
Independent Claim
60 words
A METHOD OF TREATING A FORMATION PENETRATED BY A WELL, WHICH COMPRISES INTRODUCING COMPRESSED GAS ONLY INTO SAID WELL, INCREASING THE PRESSURE OF SAID COMPRESSED GAS IN SAID WELL UNTIL SAID FORMATION IS FRACTURED, MAINTAINING PRESSURE ON SAID COMPRESSED GAS IN SAID WELL, AND SUBSEQUENTLY INTRODUCING INTO SAID FRACTURES AN AERATED LIQUID UNDER PRESSURE SO AS TO EXTEND SAID FRACTURES.
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |