US3342275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for directional tubing perforation
Assignee: Dresser Industries Inc
•
Filing: 1963-09-05
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Granted: 1967-09-19
•
Expires: 1983-09-05
Abstract
No abstract record available.
Inventors
- 👤 Norman J Mellies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:10
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/119
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
APPARATUS FOR SELECTIVELY PERFORATING A SELECTED TUBING STRING IN A BOREHOLE, SAID APPARATUS COMPRISING A MONODIRECTIONAL PERFORATOR FOR INSERTION IN SAID SELECTED TUBING STRING AND INCLUDING A TUBING LOCATOR FOR DETECTING THE POSITIONS OF AN ADJACENT TUBING STRING AND THE NEAREST PORTION OF THE WALL OF THE BOREHOLE RELATIVE TO SAID SELECTED TUBING STRING, ROTATOR MEANS FOR ROTATING SAID LOCATOR AND PERFORATOR AND INCLUDING AN ELECTRIC MOTOR AND SIGNALLING MEANS FOR INDICATING THE COMPLETION OF A FULL REVOLUTION OF SAID LOCATOR AND PERFORATOR, AN ARMORED AND GROUNDED CABLE HAVING A SINGLE CONDUCTOR AND ATTACHED AT ONE END TO SAID ROTATOR, LOCATOR AND PERFORATOR, AND POWER AND INDICATING MEANS CONNECTED TO THE OTHER END OF SAID CABLE AND INCLUDING RECORDING MEANS FUNCTIONALLY INTERCONNECTED WITH SAID LOCATOR AND SAID ROTATOR FOR DEVELOPING A POLAR-TYPE REPRESENTATION OF SAID POSITIONS OF SAID ADJACENT TUBING STRING AND NEAREST PORTION OF BOREHOLE WALL.
Claim 2
Dependent Claim
147 words
APPARATUS FOR SELECTIVELY PERFORATING A SELECTED TUBING STRING IN A BOREHOLE, SAID APPARATUS COMPRISING A MONODIRECTIONAL PERFORATOR FOR INSERTION IN SAID SELECTED TUBING STRING AND INCLUDING A TUBING LOCATOR FOR DETECTING THE POSITIONS OF AN ADJACENT TUBING STRING AND THE NEAREST PORTION OF THE WALL OF THE BOREHOLE RELATIVE TO SAID SELECTED TUBING STRING, ROTATOR MEANS FOR ROTATING SAID LOCATOR AND PERFORATOR AND INCLUDING AN ELECTRIC MOTOR AND SIGNALLING MEANS FOR INDICATING THE COMPLETION OF A FULL REVOLUTION OF SAID LOCATOR AND PERFORATOR, AN ARMORED AND GROUNDED CABLE HAVING A SINGLE CONDUCTOR AND ATTACHED AT ONE END TO SAID ROTATOR, LOCATOR AND PERFORATOR, AND POWER AND INDICATING MEANS CONNECTED TO THE OTHER END OF SAID CABLE AND INCLUDING RECORDING MEANS FUNCTIONALLY INTERCONNECTED WITH SAID LOCATOR AND SAID ROTATOR FOR DEVELOPING A POLAR-TYPE REPRESENTATION OF SAID POSITIONS OF SAID ADJACENT TUBING STRING AND NEAREST PORTION OF BOREHOLE WALL.
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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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |