Patent US3305032A successfully refreshed from Google Patents.
US3305032A
Expired / Lapsed
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Well completion apparatus
Assignee: Schlumberger Technology Corp
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Filing: 1964-06-11
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Granted: 1967-02-21
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Nick A Schuster
- 👤 William T Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:51
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
APPARATUS FOR COMPLETING A CASED WELL COMPRISING: SHAPED CHARGE MEANS FOR PRODUCING, UPON DETONATION, A PERFORATING JET, CONTAINER MEANS DISPOSED FORWARDLY OF SAID SHAPED CHARGE MEANS, SAID CONTAINER MEANS ENCLOSING A NON-PLUGGING FLUID AND HAVING A FORWARD WALL PORTION WITH A FACE CURVED COMPLEMENTARILY TO THE CURVATURE OF A CASING AND A MAJOR PORTION THEREOF INTERSECTED BY THE AXIS OF SAID PERFORATING JET, ANNULAR SEAL MEANS DISPOSED IN SAID FORWARD FACE FOR SEALING AGAINST A WELL BORE WALL, AND MEANS FOR POSITIONING SAID FORWARD FACE OF SAID CONTAINER MEANS IN CONTACT WITH THE WALL OF A CASING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |