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1. 发明授权

US5329999A Annular safety system 失效
标题翻译：环形安全系统
公开(公告)号：US5329999A
公开(公告)日：1994-07-19
申请号：US71166
申请日：1993-06-03
申请人： Pat M. White , Lewis D. Proctor
发明人： Pat M. White , Lewis D. Proctor
IPC分类号： E21B33/129 , E21B34/10 , E21B43/12 , E21B34/00
CPC分类号： E21B43/122 , E21B33/1294 , E21B34/105
摘要： An annular safety system for a well produced by gas lift includes a packer, a landing nipple below the packer and an operating seal unit to which primary and secondary well tubings and a control line are connected. There is an inline valve in the secondary tubing and safety valve operated by the control line in a primary flow conduit in the operating seal unit. After the operating seal unit is inserted through the packer to automatically land and be locked in the landing nipple and the packer operated to anchor and seal in a well casing, flow passages are formed for conveying lift gas from the secondary tubing to around the landing nipple for lifted flow upward through the primary conduit and tubing. When the well is being produced by lift gas, and pressure in the control line is reduced purposely or by rupture of the control line, the safety valve operates to prevent upward lifted flow in the primary tubing. If lift gas pressure in the secondary tubing is reduced purposely or by rupture, the inline valve prevents upward flow. The operating seal unit may be unlocked from the landing nipple for retrieval from the packer and well.
摘要翻译：用于由气举产生的井的环形安全系统包括封隔器，封隔器下方的着陆接头以及连接初级和次级井管和控制线的操作密封单元。在操作密封单元中的主流管中，通过控制管线在辅助管路和安全阀中存在一个直列阀。在操作密封单元通过封隔器插入以自动着陆并锁定在着陆接头中，并且封隔器操作以锚定和密封在井套管中时，形成流动通道以将提升气体从第二管道输送到着陆接头用于提升通过主导管和管道向上流动。当井由提升气体产生时，控制线中的压力有意降低或通过控制管线破裂，安全阀操作以防止主管中的向上升高的流动。如果二次管道中的提升气体压力有意降低或破裂，则直列阀门可防止向上流动。操作密封单元可以从着陆接头上解锁，以从打包机和井中取出。

2. 发明授权

US4840229A Multiple position service seal unit with positive position indicating means 失效
标题翻译：具有正位置指示装置的多位置服务密封单元
公开(公告)号：US4840229A
公开(公告)日：1989-06-20
申请号：US98410
申请日：1987-09-18
申请人： Lewis D. Proctor , Colby M. Ross , Brian P. Manzi , Frank Giusti, Jr.
发明人： Lewis D. Proctor , Colby M. Ross , Brian P. Manzi , Frank Giusti, Jr.
IPC分类号： E21B23/00 , E21B23/02 , E21B34/12 , E21B43/04
CPC分类号： E21B23/006 , E21B23/02 , E21B34/12 , E21B43/04
摘要： A production sub carrying a plurality of annular locator rings is coupled in series relation with downhole production equipment. A collet latch assembly including fixed and floating collet members is connected to a down hole service tool and is inserted into releasable coupling engagement with the annular locator rings of the production sub. Resilient finger portions of the fixed collet are alternately supported and unsupported by the floating collet to establish positive engagement with a selected one of the annular locator rings or to permit passage of the latch assembly with respect to the locator ring. The foregoing arrangement provides positive restriction to longitudinal movement of a work string which allows a downhole service tool attached to the work string to be selectively positioned at predetermined operating locations relative to downhole equipment. Additionally, the positioning assembly provides partial restriction to longitudinal movement of a work string for activating the motion-compensating equipment of a floating service vessel so that ocean heave or swell does not cause excessive longitudinal excursions of a downhole service tool attached to a service string which is supported by the floating vessel.
摘要翻译：承载多个环形定位环的生产分段与井下生产设备串联联接。包括固定和浮动夹头构件的夹头闩锁组件连接到井下维修工具，并且插入到与生产子系统的环形定位环的可释放的联接接合中。固定夹头的弹性手指部分由浮动夹头交替地支撑和不支撑，以与选定的一个环形定位环建立正接合，或允许闩锁组件相对于定位环通过。上述布置为工作串的纵向移动提供了积极的限制，其允许附接到工作柱的井下维修工具相对于井下设备选择性地定位在预定的操作位置。另外，定位组件对工作串的纵向移动提供部分限制，用于启动浮动工作容器的运动补偿设备，使得海洋升沉或膨胀不会引起连接到服务串上的井下维修工具的过度纵向偏移，由浮船支持。

3. 发明授权

US4722392A Multiple position service seal unit with positive position indicating means 失效
标题翻译：具有正位置指示装置的多位置服务密封单元
公开(公告)号：US4722392A
公开(公告)日：1988-02-02
申请号：US846290
申请日：1986-03-31
申请人： Lewis D. Proctor , Colby M. Ross , Brian P. Manzi , Frank Giusti, Jr.
发明人： Lewis D. Proctor , Colby M. Ross , Brian P. Manzi , Frank Giusti, Jr.
IPC分类号： E21B23/00 , E21B23/02 , E21B34/12 , E21B43/04
CPC分类号： E21B23/006 , E21B23/02 , E21B34/12 , E21B43/04
摘要： A production sub carrying a plurality of annular locator rings is coupled in series relation with downhole production equipment. A collet latch assembly including fixed and floating collet members is connected to a down hole service tool and is inserted into releasable coupling engagement with the annular locator rings of the production sub. Resilient finger portions of the fixed collet are alternately supported and unsupported by the floating collet to establish positive engagement with a selected one of the annular locator rings or to permit passage of the latch assembly with respect to the locator ring. The foregoing arrangement provides positive restriction to longitudinal movement of a work string which allows a downhole service tool attached to the work string to be selectively positioned at predetermined operating locations relative to downhole equipment. Additionally, the positioning assembly provides partial restriction to longitudinal movement of a work string for activating the motion-compensating equipment of a floating service vessel so that ocean heave or swell does not cause excessive longitudinal excursions of a downhole service tool attached to a service string which is supported by the floating vessel.
摘要翻译：承载多个环形定位环的生产分段与井下生产设备串联联接。包括固定和浮动夹头构件的夹头闩锁组件连接到井下维修工具，并且插入到与生产子系统的环形定位环的可释放的联接接合中。固定夹头的弹性手指部分由浮动夹头交替地支撑和不支撑，以与选定的一个环形定位环建立正接合，或允许闩锁组件相对于定位环通过。上述布置为工作串的纵向移动提供了积极的限制，其允许附接到工作柱的井下维修工具相对于井下设备选择性地定位在预定的操作位置。另外，定位组件对工作串的纵向移动提供部分限制，用于启动浮动工作容器的运动补偿设备，使得海洋升沉或膨胀不会引起连接到服务串上的井下维修工具的过度纵向偏移，由浮船支持。

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