US3741303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning tool
Assignee: CAMCO INC US
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Filing: 1971-11-17
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Granted: 1973-06-26
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Expires: 1991-11-17
Abstract
Abstract A positioning tool equipped with a pivoting locating finger which is actuated by engagement with an extended linear slot whose upper end is closed in a well tubing for placing well equipment in the precise position for setting in a well tubing thereby avoiding prematurely setting the well equipment at an undesired location in the tubing. The finger having a radial extending edge the longitudinal length of which is greater than the normal recesses in the well tubing whereby the finger may avoid the recesses and shoulders used to actuate the well equipment, and a spacer support supporting the well equipment desired to be actuated for positioning the well equipment when the locater finger engages the extended linear slot.
Inventors
- 👤 B Terral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/02; E21B23/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A tool for correctly locating a safety valve in a mandrel in a well tubing, said mandrel including an open bore aligned with the tubing and including an offset sidepocket, said mandrel including an orientation slot having a shoulder at the top thereof and having an upwardly directed shoulder and locking recess in the open bore comprising, a positioning tool having a body and including a locator finger pivotally supported adjacent its lower end to the body and having an upwardly directed shoulder, and spring means yieldably urging said finger outwardly, a running tool having releasable pawls which are actuated by contacting a downwardly directed shoulder in the well tubing, and including setting dogs which are actuated outwardly by the releasable pawls for engaging the upwardly directed shoulder, a well lock carried by the running tool and having locking dogs for engaging the locking recess in the open bore, said well lock actuated by the running tool, a safety valve connected to and supported by the well lock, and an elongate spacer support connected to the body of the positioning tool and supporting the running tool and of a length for correctly positioning the running tool and well lock in the open bore for setting the well lock when the locator finger engages the shoulder at the top of the elongate slot.
Claim 2
Dependent Claim
222 words
A tool for correctly locating a safety valve in a mandrel in a well tubing, said mandrel including an open bore aligned with the tubing and including an offset sidepocket, said mandrel including an orientation slot having a shoulder at the top thereof and having an upwardly directed shoulder and locking recess in the open bore comprising, a positioning tool having a body and including a locator finger pivotally supported adjacent its lower end to the body and having an upwardly directed shoulder, and spring means yieldably urging said finger outwardly, a running tool having releasable pawls which are actuated by contacting a downwardly directed shoulder in the well tubing, and including setting dogs which are actuated outwardly by the releasable pawls for engaging the upwardly directed shoulder, a well lock carried by the running tool and having locking dogs for engaging the locking recess in the open bore, said well lock actuated by the running tool, a safety valve connected to and supported by the well lock, and an elongate spacer support connected to the body of the positioning tool and supporting the running tool and of a length for correctly positioning the running tool and well lock in the open bore for setting the well lock when the locator finger engages the shoulder at the top of the elongate slot.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |