US2748867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for reactivation of flowing wells
Assignee: Baker Petrolite LLC
•
Filing: 1953-08-05
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Granted: 1956-06-05
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Expires: 1973-08-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Lissant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:25
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/607; Y; Y10; Y10S; Y10S507/00; Y10S507/902; Y10S507/925; Y10S507/935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN THE PROCESS OF REACTIVATION OF A TEMPORARILY NON-ACTIVE WELL; SAID WELL BEING OF THE NORMALLY SELFFLOWING TYPE; NON-ACTIVITY OF SAID WELL BEING DUE TO THE FACT THAT THE NORMAL FLOW WAS INTERRUPTED BY THE HYDROSTATIC PRESSURE IN THE WELL PIPING BEING MOMENTARILY GREATER THAN BOTTOM HOLE PRESSURE; THE STEP OF INTRODUCING THE BOTTOM OF SAID WELL A DISINTEGRABLE CAPSULE CONTAINING A METAL HYDRIDE SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL HYDRIDES; PERMITTING SAID CAPSULE TO DISINTEGRATE FOLLOWED BY REACTION BETWEEN WATER AND SAID METALLIC HYDRIDE; THE AMOUNT OF METALLIC HYDRIDE IN SAID CAPSULE BEING SUFFICIENT TO RELEASE ENOUGH HYDROGEN GAS IN THE WELL PIPING TO REDUCE THE APPARENT DENSITY OF THE WELL FLUID RESPONSIBLE FOR THE HYDROSTATIC HEAD TO A POINT LESS THAN THE BOTTOM HOLE PRESSURE AND PERMITTING NORMAL FLOW TO RESUME.
Claim 2
Dependent Claim
139 words
IN THE PROCESS OF REACTIVATION OF A TEMPORARILY NON-ACTIVE WELL; SAID WELL BEING OF THE NORMALLY SELFFLOWING TYPE; NON-ACTIVITY OF SAID WELL BEING DUE TO THE FACT THAT THE NORMAL FLOW WAS INTERRUPTED BY THE HYDROSTATIC PRESSURE IN THE WELL PIPING BEING MOMENTARILY GREATER THAN BOTTOM HOLE PRESSURE; THE STEP OF INTRODUCING THE BOTTOM OF SAID WELL A DISINTEGRABLE CAPSULE CONTAINING A METAL HYDRIDE SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL HYDRIDES; PERMITTING SAID CAPSULE TO DISINTEGRATE FOLLOWED BY REACTION BETWEEN WATER AND SAID METALLIC HYDRIDE; THE AMOUNT OF METALLIC HYDRIDE IN SAID CAPSULE BEING SUFFICIENT TO RELEASE ENOUGH HYDROGEN GAS IN THE WELL PIPING TO REDUCE THE APPARENT DENSITY OF THE WELL FLUID RESPONSIBLE FOR THE HYDROSTATIC HEAD TO A POINT LESS THAN THE BOTTOM HOLE PRESSURE AND PERMITTING NORMAL FLOW TO RESUME.
References Cited (Backward Citations)
US2672201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |