US3871447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing hanger setting tool
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1974-06-08
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Granted: 1975-03-18
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Expires: 1994-06-08
Abstract
Abstract A setting tool releasably attachable to a tubing hanger and lowered into a well casing on a running string, the hanger being set in the casing by fluid pressure imposed on the setting tool to effect expansion of tubing hanger slips into anchoring engagement with the well casing. When the fluid pressure reaches a predetermined value, it conditions the setting tool with respect to the tubing hanger to enable the setting tool to be released from the tubing hanger, as by rotating the running string and the setting tool attached thereto.
Inventors
- 👤 Talmadge L Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:08
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; E21B23/00; E21B23/06; E21B33/00; E21B33/10; E21B33/12; E21B33/122; E21B33/129; E21B33/1295; E21B34/00; E21B34/06; E21B34/10; E21B2200/00; E21B2200/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
189 words
In a setting tool for a tubing hanger anchorable in a well casing and having a receptacle for the setting tool, said setting tool comprising: an elongated outer tubular body having means at its upper end for connection with a running pipe string, an elongated inner body longitudinally shiftably disposed in said outer body, piston means carried by said bodies and forming a pressure chamber therebetween, said inner body having a fluid passage extending longitudinally therein and a port leading between said passage and said pressure chamber, valve means normally closing said port to admit pressure fluid to said pressure chamber from said passage, connector means on said outer body for connection with one part of the tubing hanger, connector means on said inner body for connection with another relatively movable part of the tubing hanger, whereby pressure fluid applied to said pressure chamber to effect relative longitudinal shifting of said bodies will effect corresponding shifting of the tubing hanger parts, and a plurality of flow tubes carried by said inner body and projecting downwardly therefrom, saId flow tubes having passages communicating with said passage in said inner body.
Claim 2
Dependent Claim
189 words
In a setting tool for a tubing hanger anchorable in a well casing and having a receptacle for the setting tool, said setting tool comprising: an elongated outer tubular body having means at its upper end for connection with a running pipe string, an elongated inner body longitudinally shiftably disposed in said outer body, piston means carried by said bodies and forming a pressure chamber therebetween, said inner body having a fluid passage extending longitudinally therein and a port leading between said passage and said pressure chamber, valve means normally closing said port to admit pressure fluid to said pressure chamber from said passage, connector means on said outer body for connection with one part of the tubing hanger, connector means on said inner body for connection with another relatively movable part of the tubing hanger, whereby pressure fluid applied to said pressure chamber to effect relative longitudinal shifting of said bodies will effect corresponding shifting of the tubing hanger parts, and a plurality of flow tubes carried by said inner body and projecting downwardly therefrom, saId flow tubes having passages communicating with said passage in said inner body.
Claim 3
Dependent Claim
42 words
In a setting tool as defined in claim 1, said outer and inner bodies having longitudinally extended key and slot means for maintaining said bodies in a fixed relative orientation while said inner body is shifted longitudinally relative to said outer body.
Claim 4
Dependent Claim
34 words
In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means releasably securing said bodies against relative longitudinal movement when said valve means closes said port.
Claim 5
Dependent Claim
47 words
In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means releasably securing said bodies against relative longitudinal movement, said valve means having means cooperative with said latch means to prevent release thereof when said valve closes said port.
Claim 6
Dependent Claim
49 words
In a setting tool as defined in claim 1, said connector means on said outer body comprising a thread engageable in the receptacle of the tubing hanger, and said connector means on said inner body comprising connector rod locking means engageable with a connector rod of the tubing hanger.
Claim 7
Dependent Claim
56 words
In a setting tool as defined in claim 1, said valve means comprising a valve sleeve longitudinally shiftable in said passage in said inner body, said valve sleeve having seat means for a seating element travelling in fluid flowing through said passage to close said seat means to shift said valve sleeve responsive to fluid pressure.
Claim 8
Dependent Claim
60 words
In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, and means releasably holding said latch fingers in engagement with said shoulder.
Claim 9
Dependent Claim
90 words
In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, said valve means having means engageable with said latch fingers when said valve means closes said port to hold said latch fingers in engagement with said shoulder and releasable from engagement with said latch fingers when said valve means opens said port.
Claim 10
Dependent Claim
89 words
In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, said valve means comprising a sleeve longitudinally shiftable in said passage in said inner body, said sleeve having a portion engaged with said latch fingers when said port is closed to hold said latch fingers in engagement with said latch fingers.
Claim 11
Dependent Claim
137 words
In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, said valve means comprising a sleeve longitudinally shiftable in said passage in said inner body, said sleeve having a portion engaged with said latch fingers when said port is closed to hold said latch fingers in engagement with said latch fingers, said valve sleeve having seat means for a seating element travelling in fluid flowing through said passage to close said seat means and shift said sleeve responsive to fluid pressure to a position at which said port is open and said latch fingers are released from said shoulder.
Claim 12
Dependent Claim
51 words
In a setting tool as defined in claim 1, said connector means on said outer body comprising a thread, and said connector means on said inner body comprising locking means engagEable with a connector rod carried by the tubing hanger upon longitudinal movement of said inner body in said outer body.
Claim 13
Dependent Claim
91 words
In a setting tool as defined in claim 1, said connector means on said outer body comprising a thread, and said connector means on said inner body comprising locking means engageable with a connector rod carried by the tubing hanger upon longitudinal movement of said inner body in said outer body, said inner and outer bodies having cooperative longitudinally extended key and slot means for maintaining said bodies in a fixed relative orientation, whereby said outer body is rotatable by said inner body to release said thread from said tubing hanger.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |