US3856083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well apparatus for receiving and operating a through the bore receivable safety valve
Assignee: Hydril LLC
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Filing: 1973-06-12
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Granted: 1974-12-24
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Expires: 1993-06-12
Abstract
Abstract Subsurface well apparatus and method of operating same, wherein a controlled ball valve or closure means is provided, with means for mounting same in a well tubing for normally opening and closing flow through the well tubing, and wherein a fluid flow control assembly having a replacement ball valve therewith is adapted to be dropped in or otherwise lowered through the well tubing so as to position same above said controlled ball valve for subsequent operation of said replacement valve to thereafter serve as a replacement for said controlled valve.
Inventors
- 👤 J Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:57
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/10; E21B34/105; E21B34/106; E21B2200/00; E21B2200/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
An apparatus adapted for mounting in a well tubing for receiving a well flow control means movable through a bore of the well tubing to the apparatus for being received with the apparatus and operable by the apparatus between flow enabling and flow blocking positions for controlling flow of well fluids through the well tubing, including: a. a housing having a bore therethrough and having means for connecting at its upper and lower ends with the well tubing with said bore communicating with the bore of the well tubing for providing a flow passage through said housing for the well fluids; b. means with said housing for transmitting controlled movement to the through the bore movable flow control means received in said housing for effecting desired operation of the flow control means to control the flow of well fluids through said bore; and c. means in said bore for positioning the flow control means in said bore for controlling flow of fluid in the tubing.
Claim 2
Independent Claim
165 words
An apparatus adapted for mounting in a well tubing for receiving a well flow control means movable through a bore of the well tubing to the apparatus for being received with the apparatus and operable by the apparatus between flow enabling and flow blocking positions for controlling flow of well fluids through the well tubing, including: a. a housing having a bore therethrough and having means for connecting at its upper and lower ends with the well tubing with said bore communicating with the bore of the well tubing for providing a flow passage through said housing for the well fluids; b. means with said housing for transmitting controlled movement to the through the bore movable flow control means received in said housing for effecting desired operation of the flow control means to control the flow of well fluids through said bore; and c. means in said bore for positioning the flow control means in said bore for controlling flow of fluid in the tubing.
Claim 3
Dependent Claim
20 words
The structure as set forth in claim 1, including: means for controlling the movement transmitted to the flow control means.
Claim 4
Dependent Claim
67 words
The structure as set forth in claim 1, wherein: said means for positioning including a member movable into said bore of said housing for positioning the flow control means on said member; and control means for moving said movable member into said bore of said housing wherein the means for controlling the flow in the bore of the tubing is positioned in said bore of said housing.
Claim 5
Dependent Claim
64 words
The structure as set forth in claim 1 comprising: a. said means for positioning including a member movable into said bore of said housing for constricting said bore; and b. control means for moving said movable member into said bore of said housing wherein the means for controlling the flow in the bore of the tubing is positioned in said bore of said housing.
Claim 6
Dependent Claim
44 words
The structure as set forth in claim 4, wherein: said means for transmitting controlled movement including a movable control member disposed in said bore of said housing for engagement with the received flow control means to transmit controlling movement to the flow control means.
Claim 7
Dependent Claim
42 words
The structure as set forth in claim 1, wherein: said means for transmitting controlled movement including a control member disposed in said bore of said housing for movement relative to said housing to transmit operating movement to the received flow control means.
Claim 8
Dependent Claim
28 words
The structure as set forth in claim 6, wherein: said control member is disposed in said bore of said housing for engagement with the received flow control means.
Claim 9
Dependent Claim
28 words
The structure as set forth in claim 7, wherein: said bore extends longitudinally through said housing; and said control member arranged for longitudinal movement relative to said housing.
Claim 10
Dependent Claim
32 words
The structure as set forth in claim 8, including: control means for controlling movement of said control member relative to said housing to control the movement transmitted to the flow control means.
Claim 11
Dependent Claim
23 words
The structure as set forth in claim 9, wherein: said control means including control fluid pressure responsive means for moving said control member.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |