US3104709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well perforating apparatus
Assignee: Jersey Production Research Co
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Filing: 1960-03-01
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Granted: 1963-09-24
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Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 John W Kenneday
- 👤 James L Rike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:24
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/119
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
APPARATUS FOR PERFORATING IN A CASED WELL BORE HAVING AT LEAST TWO ECCENTRIC, SPACED-APART PIPE STRINGS ARRANGED THEREIN, ONE OF SAID PIPE STRINGS BEING SHORTER THAN THE OTHER COMPRISING A WELL TOOL ADAPTED TO BE LOWERED IN SAID ONE PIPE STRING AND INCLUDING A PERFORATOR HAVING A SELECTED RADIAL DIRECTION OF PERFORATION, RESILIENT EXPANSIBLE, RETRACTABLE V-SHAPED CENTRALIZER MEANS ADAPTED TO EXPAND AND STRADDLE SAID OTHER PIPE STRING AND FORCE SAID WELL TOOL AGAINST THE WALL OF SAID CASING WHEN SAID CENTRALIZER MEANS IS LOWERED THROUGH THE LOWER END OF SAID ONE PIPE STRING, MEANS FOR ROTATING SAID WELL TOOL WITHIN SAID ONE PIPE STRING, AND A SOURCE OF RADIATION HAVING A SELECTED RADIAL DIRECTION OF BOMBARDMENT; RADIATION DETECTOR MEANS ARRANGED IN SAID OTHER PIPE STRING ADAPTED TO DETECT RAYS EMITTED BY SAID RADIATION SOURCE; SAID DIRECTION OF PERFORATION AND SAID DIRECTION OF BOMBARDMENT AND SAID DIRECTION OF EXPANSION OF SAID CENTRALIZER MEANS BEING FIXED RELATIVE TO EACH OTHER WITH THE DIRECTION OF PERFORATION BEING IN A DIRECTION OTHER THAN IN THE DIRECTION OF EXPANSION OF SAID CENTRALIZER MEANS.
Claim 2
Dependent Claim
178 words
APPARATUS FOR PERFORATING IN A CASED WELL BORE HAVING AT LEAST TWO ECCENTRIC, SPACED-APART PIPE STRINGS ARRANGED THEREIN, ONE OF SAID PIPE STRINGS BEING SHORTER THAN THE OTHER COMPRISING A WELL TOOL ADAPTED TO BE LOWERED IN SAID ONE PIPE STRING AND INCLUDING A PERFORATOR HAVING A SELECTED RADIAL DIRECTION OF PERFORATION, RESILIENT EXPANSIBLE, RETRACTABLE V-SHAPED CENTRALIZER MEANS ADAPTED TO EXPAND AND STRADDLE SAID OTHER PIPE STRING AND FORCE SAID WELL TOOL AGAINST THE WALL OF SAID CASING WHEN SAID CENTRALIZER MEANS IS LOWERED THROUGH THE LOWER END OF SAID ONE PIPE STRING, MEANS FOR ROTATING SAID WELL TOOL WITHIN SAID ONE PIPE STRING, AND A SOURCE OF RADIATION HAVING A SELECTED RADIAL DIRECTION OF BOMBARDMENT; RADIATION DETECTOR MEANS ARRANGED IN SAID OTHER PIPE STRING ADAPTED TO DETECT RAYS EMITTED BY SAID RADIATION SOURCE; SAID DIRECTION OF PERFORATION AND SAID DIRECTION OF BOMBARDMENT AND SAID DIRECTION OF EXPANSION OF SAID CENTRALIZER MEANS BEING FIXED RELATIVE TO EACH OTHER WITH THE DIRECTION OF PERFORATION BEING IN A DIRECTION OTHER THAN IN THE DIRECTION OF EXPANSION OF SAID CENTRALIZER MEANS.
References Cited (Backward Citations)
US2785754A
Cited
US2938584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |