Infinitely variable control valve apparatus and method
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-034/10
E21B-034/16
출원번호
US-0083048
(2002-02-25)
발명자
/ 주소
Williamson, Jimmie Robert
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Schroeder, Peter V.
인용정보
피인용 횟수 :
20인용 특허 :
27
초록▼
In carrying out the principles of the present invention, in accordance with an embodiment thereof, an annular choke apparatus, and methods of use, are provided for use within a subterranean well. In broad terms, a choke tool apparatus is provided which includes an outer housing having an outer housi
In carrying out the principles of the present invention, in accordance with an embodiment thereof, an annular choke apparatus, and methods of use, are provided for use within a subterranean well. In broad terms, a choke tool apparatus is provided which includes an outer housing having an outer housing wall with at least one flow port therethrough, and a variable annular flow-area choke disposed within the outer housing, the variable annular flow-area choke having a first generally tubular member sealingly disposed within the outer housing, the first tubular member having a shoulder with a sealing surface, a second generally tubular member slidingly and sealingly disposed within the outer housing, the second tubular member having a shoulder with a sealing surface, the second member movable between a sealed position wherein the sealing surfaces are in sealing abutment and an open position wherein the sealing surfaces are spaced apart. The sealing surfaces preferably provide a metal-to-metal seal. The variable annular flow-area choke described herein preferably provides for infinite adjustment between open and closed positions for precise flow regulation. The apparatus may include an actuator, locking, adjustment and biasing assemblies.
대표청구항▼
In carrying out the principles of the present invention, in accordance with an embodiment thereof, an annular choke apparatus, and methods of use, are provided for use within a subterranean well. In broad terms, a choke tool apparatus is provided which includes an outer housing having an outer housi
In carrying out the principles of the present invention, in accordance with an embodiment thereof, an annular choke apparatus, and methods of use, are provided for use within a subterranean well. In broad terms, a choke tool apparatus is provided which includes an outer housing having an outer housing wall with at least one flow port therethrough, and a variable annular flow-area choke disposed within the outer housing, the variable annular flow-area choke having a first generally tubular member sealingly disposed within the outer housing, the first tubular member having a shoulder with a sealing surface, a second generally tubular member slidingly and sealingly disposed within the outer housing, the second tubular member having a shoulder with a sealing surface, the second member movable between a sealed position wherein the sealing surfaces are in sealing abutment and an open position wherein the sealing surfaces are spaced apart. The sealing surfaces preferably provide a metal-to-metal seal. The variable annular flow-area choke described herein preferably provides for infinite adjustment between open and closed positions for precise flow regulation. The apparatus may include an actuator, locking, adjustment and biasing assemblies. indentation. 9. The apparatus of claim 1 wherein the first end of the first member comprises a cup-like projection. 10. The apparatus of claim 1 wherein the frame further comprises: (a1) a first projection extending outward from the frame to which the first member is movably mounted; and (a2) a second projection extending outward from the frame to which the second member is movably mounted. 11. An apparatus for imitating kicking of a ball comprising: (a) a rigid frame; (b) a first projection extending outward from the frame; (c) a first member movably mounted to the first projection; (d) a mechanism at a first end of the first member to seat a ball; (e) a second member mounted to the frame; (f) means for mechanically coupling the first member and the second member; and (g) the first member pivotable relative to the first projection so that a ball retained in an indentation at the first end of the first member is launched upon receipt of force transferred to the first member from the second member. 12. The apparatus of claim 11 wherein the second member is pivotally mounted to the frame and further comprises: (e1) a first end shaped to receive force applied to the second member. 13. The apparatus of claim 12 wherein the first member and second members each have a second end coupled to the means for mechanically coupling; and the means for mechanically coupling the first member to the second member comprises a cable. 14. The apparatus of claim 12 the apparatus further comprising: (h) a resistive element coupled intermediate the frame and the second member to provide counter-resistive force to any force applied to the first end of the second member. 15. The apparatus of claim 11 wherein the first member has an exterior surface covered with a resilient material. 16. The apparatus of claim 11 wherein the first member comprises a resilient material. 17. The apparatus of claim 11 wherein the first member is shaped to mimic a human leg. 18. The apparatus of claim 11 wherein a raised cup is shaped to receive a ball. 19. The apparatus of claim 11 wherein the apparatus further comprises: (h) a second projection extending outward from the frame, the second member movably mounted to the second projection. 20. An apparatus for launching a ball comprising: (a) a rigid frame (b) a prosthetic leg movably mounted to the frame; (c) the prosthetic leg including a mechanism to seat a ball at an end thereof; (c) a pedal pivotally mounted to the frame; (d) a cable coupling the prosthetic leg to the pedal so that force applied to the pedal is transferable to the prosthetic leg; and (e) the prosthetic leg pivotable relative to the frame so that a ball seated in an indentation of the prosthetic leg is launched upon receipt of force by the pedal. 21. The apparatus of claim 20 wherein the prosthetic leg comprises a resilient material. 22. The apparatus of claim 20 wherein the apparatus further comprises: (f) a resistive element coupled intermediate the frame and the pedal to provide counter-force to any force applied to the pedal. 23. The apparatus of claim 20 wherein the frame further comprises: (a1) a first frame member having a projection extending outward therefrom to which the prosthetic leg is pivotally mounted; (a2) a second frame member having a projection extending outward therefrom to which the pedal is mounted; and (a3) a mechanism mechanically coupling the first frame member to the second frame member. 24. The apparatus of claim 23 wherein the mechanism mechanically coupling the first frame member to the second frame member comprises a collapsible-expandable linkage the may be fixed into one of an expanded and collapsed configuration. 25. A method for imitating the launching of a ball comprising: (a) providing an apparatus having a frame with first and second members movably mounted to the frame, the first and second members mechanically coupled, the first member having a first end shaped to seat the ball; (b) placing the ball into the first end of the first member; and (c) applying force to the second member so that the force is transferred to the first member causing the first member to pivot relative to the frame and further causing the ball to disengage the first member. 26. A method for facilitating controlled launching of a ball comprising: (a) providing a rigid frame; (b) movably mounting a first member to the frame, the first member having a first end shaped to receive a ball to be launched; (b) movably mounting a second member to the frame; (c) mechanically coupling the first member to the second member so that force can be transmitted from the second member to the first member causing the first member to pivot relative to the frame so that the ball received at the first end of the first member will be launched from the first member.
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이 특허에 인용된 특허 (27)
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