Patent US4659599A successfully refreshed from Google Patents.
US3750752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Completion and kill valve
Assignee: Hydril LLC
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Filing: 1971-04-30
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Granted: 1973-08-07
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Expires: 1991-04-30
Abstract
Abstract A completion and kill valve adapted to be placed immediately above a packer in the well production tubing including a tubular member having an inner bore and a circulation channel therein permitting communication between the inner bore and the well annulus area adjacent the exterior of the tubular member. A movable sleeve closes or opens communication through the circulation channel in response to various pressures and a spring bias acting on the sleeve. Provisions for locking the sleeve in the open position and subsequently unlocking the sleeve in response to inner bore pressure are provided.
Inventors
- 👤 J Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:10
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/08; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/7722; Y10T137/7781; Y10T137/7834
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
276 words
A valve for use in a production tubing with drilling fluids wherein the valve enables production of hydrocarbons and permits shutting off of the tubing string under certain incipient conditions, said valve comprising: a. a tubular member having a longitudinal inner bore therein and connected at its upper and lower ends to the production tubing with said inner bore communicatIng with the bore of the production tubing; b. said tubular member having a circulation channel therein for permitting communication between said inner bore and the annulus between said tubular member and the well casing; c. a sleeve member concentrically mounted exteriorly with said tubular member for sliding movement from an open position for permitting flow through said circulation channel to a closed position for blocking flow through said circulation channel; d. spring means disposed between said sleeve and said tubular member for urging said sleeve to said closed position when the pressure in said inner bore of said tubular member is substantially equal to the pressure in the annulus adjacent said tubular member wherein said sleeve is biased to said closed position by said spring means; e. a slide member disposed between said tubular member and said sleeve, said slide member movable between an upper position and a lower position; and f. said slide member in said lower position engaging said sleeve in the closed position and said slide member moving to the lower position in response to the pressure in said inner bore of said tubular member when the pressure in said inner bore is substantially greater than the pressure in the annulus adjacent said tubular member thereby retaining said sleeve in said closed position.
Claim 2
Dependent Claim
276 words
A valve for use in a production tubing with drilling fluids wherein the valve enables production of hydrocarbons and permits shutting off of the tubing string under certain incipient conditions, said valve comprising: a. a tubular member having a longitudinal inner bore therein and connected at its upper and lower ends to the production tubing with said inner bore communicatIng with the bore of the production tubing; b. said tubular member having a circulation channel therein for permitting communication between said inner bore and the annulus between said tubular member and the well casing; c. a sleeve member concentrically mounted exteriorly with said tubular member for sliding movement from an open position for permitting flow through said circulation channel to a closed position for blocking flow through said circulation channel; d. spring means disposed between said sleeve and said tubular member for urging said sleeve to said closed position when the pressure in said inner bore of said tubular member is substantially equal to the pressure in the annulus adjacent said tubular member wherein said sleeve is biased to said closed position by said spring means; e. a slide member disposed between said tubular member and said sleeve, said slide member movable between an upper position and a lower position; and f. said slide member in said lower position engaging said sleeve in the closed position and said slide member moving to the lower position in response to the pressure in said inner bore of said tubular member when the pressure in said inner bore is substantially greater than the pressure in the annulus adjacent said tubular member thereby retaining said sleeve in said closed position.
Claim 3
Dependent Claim
48 words
The structure as set forth in claim 1, including a means for maintaining said sleeve in said closed position in response to the pressure in the annulus adjacent said tubular member when such pressure is substantially greater than the pressure in said inner bore of said tubular member.
Claim 4
Dependent Claim
158 words
The structure as set forth in claim 2, wherein a. said tubular member having a sensing channel therein located below and spaced from said circulation channel, said sensing channel for permitting communication between said inner bore and the area above said slide member; b. the space between said sensing channel and said circulation channel being sufficient to receive a plug therebetween; c. said plug controlling communication between said inner bore above said plug and said sensing channel; and d. said sleeve member moving to said open position in response to the pressure in said inner bore communicated to said sleeve through said circulation channel when said plug blocks communication between said inner bore above said plug and said sensing channel wherein an increased pressure developed in said inner bore above said plug moves said sleeve member to the open position permitting flow of fluid from said inner bore above said plug into the annulus through said circulation channel.
Claim 5
Dependent Claim
38 words
The structure as set forth in claim 3, including lock means in said sleeve for mechanically locking said sleeve member in the open position to prevent said spring means from thereafter moving said sleeve to said closed position.
Claim 6
Dependent Claim
35 words
The structure as set forth in claim 4, including unlocking means in said sleeve for unlocking said mechanical locking means and thereby permitting said spring means to thereafter move said sleeve to said closed position.
Claim 7
Dependent Claim
100 words
The structure as set forth in claim 4, wherein said locking means includes; a. a movable latch member positioned between said sleeve and said tubular member for longitudinal downward movement when an increased pressure in said inner bore above said plug exerts a downward pressure thereon; b. a detent member positioned below said movable latch member; and c. said sleeve including a recess in which said detent is adapted to move into when said sleeve is in the open position wherein said detent moves into said recess and is locked in said recess by said movable latch member moving downward.
Claim 8
Dependent Claim
151 words
The structure as set forth in claim 6, including: a. said tubular member having a locking channel therein for permitting communication between said inner bore and the area above said movable latch member, said locking channel being located between said sensing channel and said cirCulation channel, said locking channel being spaced from said circulation channel to receive a portion of said plug therebetween, said locking channel being spaced from said sensing channel to receive a portion of said plug therebetween; b. said plug controlling communication between said inner bore above said plug and said locking channel; and c. said movable latch member moving downward when said plug permits communication between said inner bore above said plug and said locking channel wherein increased pressure in said inner bore above said plug communicates to said locking channel by said plug moves said latch member down thereby locking the sleeve in the open position.
Claim 9
Dependent Claim
55 words
The structure as set forth in claim 7, including unlocking means in said sleeve for moving said movable latch member upward from said detent when an increased pressure in said inner bore above said plug exerts an upward pressure thereon wherein the spring means is thereafter permitted to move said sleeve to said closed position.
Claim 10
Dependent Claim
49 words
The structure as set forth in claim 8, wherein said sensing channel communicates with the area below said latch member for exerting an upward pressure on said latch member when an increased pressure in said inner bore above said plug is communicated to said sensing channel by said plug.
Claim 11
Dependent Claim
145 words
A well tool, including: a. a tubular member having a bore extending therethrough and adapted for connection in a production tubing to form a portion thereof with said bore communicating the bore of the production tubing to enable the flow of well fluids therethrough; b. a circulation channel formed through said tubular member for enabling communication between said bore and an annular area formed about the production tubing; and c. a member mounted with said tubular member movable to and from a closed position blocking communication through said circulation channel and to and from an open position enabling communication through said circulation channel, said member having means for operably moving said member to enable communication through said circulation channel in response to the urging of controlled fluid pressure in said bore greater than the pressure in the annular area wherein the well tool is operated.
Claim 12
Dependent Claim
145 words
A well tool, including: a. a tubular member having a bore extending therethrough and adapted for connection in a production tubing to form a portion thereof with said bore communicating the bore of the production tubing to enable the flow of well fluids therethrough; b. a circulation channel formed through said tubular member for enabling communication between said bore and an annular area formed about the production tubing; and c. a member mounted with said tubular member movable to and from a closed position blocking communication through said circulation channel and to and from an open position enabling communication through said circulation channel, said member having means for operably moving said member to enable communication through said circulation channel in response to the urging of controlled fluid pressure in said bore greater than the pressure in the annular area wherein the well tool is operated.
Claim 13
Dependent Claim
42 words
The invention as set forth in claim 10, wherein: fluid pressure in the annular area greater than a fluid pressure in said bore of said tubular member effects said means for operably moving said member to block communication through said circulation channel.
Claim 14
Dependent Claim
51 words
The invention as set forth in claim 10, wherein: fluid pressure in said bore of said tubular member greater than fluid pressure in the annular area effects said means for operably moving said member to block communication through said circulation channel when the fluid pressure in said bore is not controlled.
Claim 15
Dependent Claim
46 words
The invention as set forth in claim 10, including: biasing means for effecting movement of said member to block communication through said circulation channel when the fluid pressure in said bore of said tubular member and the fluid pressure in the annular area are substantially equal.
Claim 16
Dependent Claim
41 words
The invention as set forth in claim 10, wherein: controlled fluid pressure is communicated to a portion of said bore of said tubular member to move said member to enable communication through said circulation channel wherein the well tool is operated.
Claim 17
Dependent Claim
59 words
The invention as set forth in claim 10, including: a plug receivable in said bore of said tubular member to control the fluid pressure in said bore to effect movement of said member by said means for operably moving said member to the open position for enabling communication through said circulation channel in response to the controlled fluid pressure.
Claim 18
Dependent Claim
68 words
The invention as set forth in claim 10, including: a slide member mounted with said tubular member and movable in response to the fluid pressure in said bore of said tubular member to move said member to the closed position for blocking commUnication through said circulation channel when the fluid pressure in said bore of said tubular member is greater than the fluid pressure in the annular area.
Claim 19
Dependent Claim
58 words
The invention as set forth in claim 16, wherein: said member is movable in response to the fluid pressure in the annular area to move said member to the position for blocking communication through said circulation channel when the fluid pressure in the annular area is greater than the fluid pressure in said bore of said tubular member.
Claim 20
Dependent Claim
41 words
The invention as set forth in claim 16, including: a sensing channel formed through said tubular member at a location spaced from said circulation channel for communication the fluid pressure in said bore of said tubular member to said slide member.
Claim 21
Dependent Claim
63 words
The invention as set forth in claim 18, including: a plug receivable in said bore of said tubular member for controlling communication of the fluid pressure in said bore of said tubular member by blocking communication through said sensing channel while moving said member to the open position for enabling flow of fluid through said circulation channel wherein said well tool is operated.
Claim 22
Dependent Claim
33 words
The invention as set forth in claim 10, including: means for locking said member in the open position to thereafter enable communication through said circulation channel when the controlled fluid pressures is absent.
Claim 23
Dependent Claim
28 words
The invention as set forth in claim 20, including: means for unlocking said member from the open position to enable said member to move to the closed position.
Claim 24
Dependent Claim
93 words
The invention as set forth in claim 20, wherein said means for locking includes: a. a latch member mounted with said tubular member and movable in response to the urging of a directional fluid pressure to and from a locking position and to and from a free position; and b. a movable detent mounted with said tubular member for engaging said member in the open position to thereafter block movement of said member from the open position when said latch member moves to the locking position wherein said well tool is locked open.
Claim 25
Dependent Claim
41 words
The invention as set forth in claim 22, including: a locking channel formed through said tubular member at a location spaced from said circulation channel for communicating the fluid pressure in said bore of said tubular member to said latch member.
Claim 26
Dependent Claim
63 words
The invention as set forth in claim 23, including: a plug receivable in said bore of said tubular member controlling communication of the fluid pressure in said bore of said tubular member through said locking channel for moving said latch member to the locking position to thereafter block movement of said member from the open position wherein the well tool is locked open.
Claim 27
Dependent Claim
47 words
The invention as set forth in claim 22, wherein: said latch member moves to the free position in response to a directional fluid pressure to thereafter enable said member to move to the closed position wherein said member is enabled to move thereafter to the closed position.
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |