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1. 发明授权

US4834183A Surface controlled subsurface safety valve 失效
标题翻译：表面控制地下安全阀
公开(公告)号：US4834183A
公开(公告)日：1989-05-30
申请号：US155980
申请日：1988-02-16
申请人： Michael B. Vinzant , Craig D. Hines , Rennie L. Dickson , Robert C. Hammett
发明人： Michael B. Vinzant , Craig D. Hines , Rennie L. Dickson , Robert C. Hammett
IPC分类号： E21B34/00 , E21B34/10
CPC分类号： E21B34/102 , E21B2034/005
摘要： A surface controlled subsurface safety valve for use in a well tubing string including a valve closure member, an operator tube for opening the valve closure member, an annular piston on the operator tube responsive to control fluid pressure conducted from the well surface, and a spring biasing the operator tube to a position closing the valve. A lockout sleeve mounted in tandem with the operator tube for movement to a position in which the lockout sleeve holds the valve open. The operator tube having multiple flow paths and barriers to prevent accumulation of debris from well fluids within the safety valve. One flow path including a plurality of small ports extending through the upper portion of the operator tube. Another flow path defined in part by a reduced outside diameter portion of the operator tube near its lower end and multiple channels in the valve housing adjacent thereto.
摘要翻译：一种用于井管柱的表面控制地下安全阀，包括阀关闭构件，用于打开阀关闭构件的操作管，响应于控制从井表面传导的流体压力的操作管上的环形活塞，以及弹簧将操作者管偏压到关闭阀的位置。与操作器管串联安装的锁定套筒，用于移动到锁定套筒保持阀打开的位置。操作员管具有多个流动路径和屏障，以防止来自安全阀内的井液的碎屑积聚。一个流动路径包括延伸穿过操作管的上部的多个小端口。另一个流动路径部分地由操作者管的减小的外径部分限定在其下端附近，并且在与其相邻的阀壳中的多个通道。

2. 发明授权

US5318127A Surface controlled annulus safety system for well bores 失效
标题翻译：井眼表面控制环形安全系统
公开(公告)号：US5318127A
公开(公告)日：1994-06-07
申请号：US923549
申请日：1992-08-03
申请人： Craig D. Hines , Rennie L. Dickson
发明人： Craig D. Hines , Rennie L. Dickson
IPC分类号： E21B34/10
CPC分类号： E21B34/10
摘要： A safety system including a surface controlled subsurface safety valves for use in a well having annulus fluid flow. One of the safety valves has a valve closure member, and a small diameter offset piston actuator to move the valve closure member in response to control fluid pressure conducted from the well surface to its open position which allows annulus fluid flow. A spring biases the valve closure member to block annulus fluid flow. The annulus safety valve has an enlarged flow area for use in high volume gas injection wells. The annulus safety valve has metal-to-metal sealing systems to improve valve life under harsh downhole well environments.
摘要翻译：一种安全系统，包括用于具有环形流体流的井的表面控制的地下安全阀。其中一个安全阀具有阀关闭构件和小直径偏移活塞致动器，以响应于从井表面传导到允许环形流体流动的打开位置的控制流体压力来移动阀关闭构件。弹簧偏压阀关闭构件以阻挡环流体流动。环形安全阀具有用于大体积气体注入井的扩大的流动面积。环形安全阀具有金属对金属密封系统，以在恶劣的井下井环境下改善阀门寿命。

3. 发明授权

US4842074A Gas storage well safety system and method 失效
标题翻译：储气井安全系统及方法
公开(公告)号：US4842074A
公开(公告)日：1989-06-27
申请号：US108790
申请日：1987-10-15
申请人： Craig D. Hines , Michael J. Bednarz , Ronald K. Churchman
发明人： Craig D. Hines , Michael J. Bednarz , Ronald K. Churchman
IPC分类号： E21B34/10 , E21B41/02
CPC分类号： E21B34/10 , E21B41/02
摘要： A well safety system with two surface controlled subsurface safety valves. The invention allows various alternatives for controlling injection into and production from a gas storage well. For maximum production, gas can flow from the underground storage reservoir to the well surface via a tubing string and the annulus between the tubing and well casing. The invention provides at least two alternative flow paths for injecting kill fluids into the well bore.
摘要翻译：具有两个表面控制的地下安全阀的井下安全系统。本发明允许用于控制从储气井注入和生产的各种替代方案。为了最大限度地生产，气体可以通过油管柱和油管与油井套管之间的环形空间从地下储存容器流到井表面。本发明提供了至少两个替代的流动路径，用于将灭活流体喷射到井眼中。

4. 发明授权

US5137089A Streamlined flapper valve 失效
标题翻译：流水溢流阀
公开(公告)号：US5137089A
公开(公告)日：1992-08-11
申请号：US591416
申请日：1990-10-01
申请人： Roddie R. Smith , Craig D. Hines , Rennie L. Dickson
发明人： Roddie R. Smith , Craig D. Hines , Rennie L. Dickson
IPC分类号： E21B34/00 , E21B34/06 , E21B34/10
CPC分类号： E21B34/10 , E21B34/06 , E21B2034/005
摘要： A subsurface safety valve has a valve seat and an upwardly closing flapper plate whose sealing surfaces each have a matched spherical radius of curvature. The sealing surface of the valve seat is a concave spherical segment and the sealing surface of the flapper plate is a convex spherical segment. The matching spherical surfaces are lapped together to provide a metal-to-metal seal along the interface between the nested convex and concave sealing surfaces. This permits angular displacement of the flapper plate relative to the valve seat without interrupting positive sealing engagement. The concave spherical seating surface of the safety valve seat will tolerate a limited amount of misalignment of the flapper plate which sometimes occurs during operation of the safety valve under high flow rate, high differential pressure conditions.
摘要翻译：地下安全阀具有阀座和向上关闭的挡板，其密封表面各自具有匹配的球形曲率半径。阀座的密封面为凹球面，挡板的密封面为凸状球形。匹配的球形表面被堆叠在一起以沿着嵌套的凸形和凹形密封表面之间的界面提供金属对金属密封。这允许挡板相对于阀座的角位移而不会中断正的密封接合。安全阀座的凹形球形座面将容许在高流量，高压差条件下安全阀操作期间有时会发生挡板的有限量的不对准。

5. 发明授权

US5323859A Streamlined flapper valve 失效
标题翻译：流线型挡板阀
公开(公告)号：US5323859A
公开(公告)日：1994-06-28
申请号：US117335
申请日：1993-09-03
申请人： Roddie R. Smith , Craig D. Hines , Rennie L. Dickson
发明人： Roddie R. Smith , Craig D. Hines , Rennie L. Dickson
IPC分类号： E21B34/00 , E21B34/06 , E21B34/10
CPC分类号： E21B34/10 , E21B34/06 , E21B2034/005
摘要： A subsurface safety valve has a valve seat and an upwardly closing flapper plate whose sealing surfaces each have a matched spherical radius of curvature. The sealing surface of the valve seat is a concave spherical segment and the sealing surface of the flapper plate is a convex spherical segment. The matching spherical surfaces are lapped together to provide a metal-to-metal seal along the interface between the nested convex and concave sealing surfaces. This permits angular displacement of the flapper plate relative to the valve seat without interrupting positive sealing engagement. The concave spherical seating surface of the safety valve seat will tolerate a limited amount of misalignment of the flapper plate which sometimes occurs during operation of the safety valve under high flow rate, high differential pressure conditions.
摘要翻译：地下安全阀具有阀座和向上关闭的挡板，其密封表面各自具有匹配的球形曲率半径。阀座的密封面为凹球面，挡板的密封面为凸状球形。匹配的球形表面被堆叠在一起以沿着嵌套的凸形和凹形密封表面之间的界面提供金属对金属密封。这允许挡板相对于阀座的角位移而不会中断正的密封接合。安全阀座的凹形球形座面将容许在高流量，高压差条件下安全阀操作期间有时会发生挡板的有限量的不对准。

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