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1. 发明授权

US5782304A Normally closed retainer valve with fail-safe pump through capability 失效
公开(公告)号：US5782304A
公开(公告)日：1998-07-21
申请号：US757714
申请日：1996-11-26
申请人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
发明人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
IPC分类号： E21B23/00 , E21B34/00 , E21B34/04 , E21B34/10 , E21B33/035
CPC分类号： E21B23/006 , E21B34/045 , E21B34/10 , E21B2034/002
摘要： A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The retainer valve response is controlled by several factors, among which are relative tubing and balance line pressures, and axial positions of a number of pistons relative to a tubular J-slot member. If the control and balance lines are disconnected, or otherwise unavailable for operation of the valve, it may still be operated by manipulation of the tubing pressure at the earth's surface. Thus, the valve may be opened in emergency situations in which the control and balance lines are unavailable, but operation of the valve is still needed in order to safely relieve trapped pressure in the tubing string and/or to kill the well, unlatch a subsea test tree, etc. The retainer valve is also useful as a lubricator valve.

2. 发明授权

US5884703A Normally closed retainer valve with fail-safe pump through capability 失效
公开(公告)号：US5884703A
公开(公告)日：1999-03-23
申请号：US76338
申请日：1998-05-11
申请人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
发明人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
IPC分类号： E21B23/00 , E21B34/00 , E21B34/04 , E21B34/10 , E21B33/035
CPC分类号： E21B23/006 , E21B34/045 , E21B34/10 , E21B2034/002
摘要： A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The retainer valve response is controlled by several factors, among which are relative tubing and balance line pressures, and axial positions of a number of pistons relative to a tubular J-slot member. If the control and balance lines are disconnected, or otherwise unavailable for operation of the valve, it may still be operated by manipulation of the tubing pressure at the earth's surface. Thus, the valve may be opened in emergency situations in which the control and balance lines are unavailable, but operation of the valve is still needed in order to safely relieve trapped pressure in the tubing string and/or to kill the well, unlatch a subsea test tree, etc. The retainer valve is also useful as a lubricator valve.

3. 发明授权

US5894890A Normally closed retainer valve with fail-safe pump through capability 失效
公开(公告)号：US5894890A
公开(公告)日：1999-04-20
申请号：US76450
申请日：1998-05-11
申请人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
发明人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
IPC分类号： E21B23/00 , E21B34/00 , E21B34/04 , E21B34/10 , E21B33/035
CPC分类号： E21B23/006 , E21B34/045 , E21B34/10 , E21B2034/002
摘要： A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The retainer valve response is controlled by several factors, among which are relative tubing and balance line pressures, and axial positions of a number of pistons relative to a tubular J-slot member. If the control and balance lines are disconnected, or otherwise unavailable for operation of the valve, it may still be operated by manipulation of the tubing pressure at the earth's surface. Thus, the valve may be opened in emergency situations in which the control and balance lines are unavailable, but operation of the valve is still needed in order to safely relieve trapped pressure in the tubing string and/or to kill the well, unlatch a subsea test tree, etc. The retainer valve is also useful as a lubricator valve.

4. 发明授权

US5884708A Normally closed retainer valve with fail-safe pump through capability 失效
公开(公告)号：US5884708A
公开(公告)日：1999-03-23
申请号：US76603
申请日：1998-05-11
申请人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
发明人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
IPC分类号： E21B23/00 , E21B34/00 , E21B34/04 , E21B34/10 , E21B33/035
CPC分类号： E21B23/006 , E21B34/045 , E21B34/10 , E21B2034/002
摘要： A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The retainer valve response is controlled by several factors, among which are relative tubing and balance line pressures, and axial positions of a number of pistons relative to a tubular J-slot member. If the control and balance lines are disconnected, or otherwise unavailable for operation of the valve, it may still be operated by manipulation of the tubing pressure at the earth's surface. Thus, the valve may be opened in emergency situations in which the control and balance lines are unavailable, but operation of the valve is still needed in order to safely relieve trapped pressure in the tubing string and/or to kill the well, unlatch a subsea test tree, etc. The retainer valve is also useful as a lubricator valve.

5. 发明授权

US5884707A Normally closed retainer valve with fail-safe pump through capability 失效
标题翻译：常闭式止回阀具有故障安全泵通过能力
公开(公告)号：US5884707A
公开(公告)日：1999-03-23
申请号：US76316
申请日：1998-05-11
申请人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
发明人： Virgilio Garcia-Soule , Darrin N. Towers , Kenneth L. Schwendemann
IPC分类号： E21B23/00 , E21B34/00 , E21B34/04 , E21B34/10 , E21B33/035
CPC分类号： E21B23/006 , E21B34/045 , E21B34/10 , E21B2034/002
摘要： A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The retainer valve response is controlled by several factors, among which are relative tubing and balance line pressures, and axial positions of a number of pistons relative to a tubular J-slot member. If the control and balance lines are disconnected, or otherwise unavailable for operation of the valve, it may still be operated by manipulation of the tubing pressure at the earth's surface. Thus, the valve may be opened in emergency situations in which the control and balance lines are unavailable, but operation of the valve is still needed in order to safely relieve trapped pressure in the tubing string and/or to kill the well, unlatch a subsea test tree, etc. The retainer valve is also useful as a lubricator valve.
摘要翻译：保持阀提高井场操作的安全性。在优选实施例中，保持阀的操作可以响应于控制管路压力或管道压力。保持阀响应由几个因素控制，其中包括相对管道和平衡管线压力以及多个活塞相对于管状J形槽构件的轴向位置。如果控制和平衡管线断开，或者其他方式不能用于阀的操作，则仍然可以通过操纵地球表面处的管道压力来操作。因此，在控制和平衡管线不可用的紧急情况下，阀可以打开，但是仍然需要阀的操作以便安全地释放油管柱中的被捕获压力和/或杀死井，解开海底测试树等。保持阀也可用作润滑阀。

6. 发明授权

US06808024B2 Downhole seal assembly and method for use of same 失效
标题翻译：井下密封组件及其使用方法
公开(公告)号：US06808024B2
公开(公告)日：2004-10-26
申请号：US10151276
申请日：2002-05-20
申请人： Kenneth L. Schwendemann , Darrin N. Towers , Brian D. Higgins , Beegamudre N. Murali
发明人： Kenneth L. Schwendemann , Darrin N. Towers , Brian D. Higgins , Beegamudre N. Murali
IPC分类号： E21B3312
CPC分类号： E21B17/203 , E21B17/003 , E21B33/1295
摘要： A seal assembly (60) for controlling the flow of fluids in an annulus (68) between a continuous tubular (62) and a cased wellbore (64) is disclosed. The seal assembly (60) includes anchor slips (72) and a seal element (78). The seal assembly (60) is actuated by communicating hydraulic fluid to a setting assembly (82) via an operating fluid conduit integral with the tubular (62). Upon actuation, the setting assembly (82) axially shifts a pair of slip ramps (74, 76) which radially expands the anchor slips (72) into gripping engagement with the wellbore (64) and radially expands the seal element (78) into sealing engagement with the wellbore (64).
摘要翻译：公开了一种用于控制连续管（62）和套管井眼（64）之间的环（68）中的流体流动的密封组件（60）。密封组件（60）包括锚固件（72）和密封件（78）。所述密封组件（60）通过与所述管（62）成一体的工作流体导管将液压流体连通到设定组件（82）来启动。在致动时，设置组件（82）使一对滑动斜面（74,76）轴向移动，所述滑动斜坡径向地使锚固滑动件（72）膨胀以与井筒（64）夹紧接合，并将密封元件（78）径向膨胀成密封与井筒（64）接合。

7. 发明授权

US07322416B2 Methods of servicing a well bore using self-activating downhole tool 有权
标题翻译：使用自激活井下工具维修井筒的方法
公开(公告)号：US07322416B2
公开(公告)日：2008-01-29
申请号：US11120220
申请日：2005-05-02
申请人： Wesley J. Burris, II , Kenneth L. Schwendemann , Phillip M. Starr , Michael L. Fripp , John J. Goiffon , John H. Hales , John Rodgers , Darrin N. Towers
发明人： Wesley J. Burris, II , Kenneth L. Schwendemann , Phillip M. Starr , Michael L. Fripp , John J. Goiffon , John H. Hales , John Rodgers , Darrin N. Towers
IPC分类号： E21B43/26 , E21B43/263 , E21B33/10
CPC分类号： E21B47/04 , E21B23/00 , E21B23/10 , E21B43/119
摘要： A method of servicing a well bore comprises deploying into the well bore a zonal isolation device operable to self-set at a sensed location, and self-setting the zonal isolation device to hold at the sensed location without receiving command communications from the surface, wherein the zonal isolation device is deployed along at least a partial length of the well bore via an external force. Another method of servicing comprises deploying into the well bore a tool operable to self-activate at one or more locations, and self-navigating the tool to determine the one or more locations without receiving communications from the surface, wherein the tool is moved along at least a partial length of the well bore via an external force.
摘要翻译：一种维修井眼的方法，包括将井带隔离装置部署到井眼中，该区域隔离装置可操作以在感测位置处自行设定，并且将区域隔离装置自我设定以保持在所感测的位置，而不从表面接收命令通信，其中区域隔离装置经由外力沿孔的至少部分长度展开。另一种维修方法包括将可操作以在一个或多个位置自激活的工具部署到井眼中，以及自行导向工具以确定一个或多个位置而不从表面接收通信，其中工具沿着通过外力至少部分井筒的长度。

8. 发明授权

US06722427B2 Wear-resistant, variable diameter expansion tool and expansion methods 有权
标题翻译：耐磨，可变直径膨胀工具和膨胀方法
公开(公告)号：US06722427B2
公开(公告)日：2004-04-20
申请号：US10047628
申请日：2001-10-23
申请人： John C. Gano , Kenneth L. Schwendemann , Darrin N. Towers , Ralph Harvey Echols , Perry Carter Shy
发明人： John C. Gano , Kenneth L. Schwendemann , Darrin N. Towers , Ralph Harvey Echols , Perry Carter Shy
IPC分类号： E21B2300
CPC分类号： E21B43/105
摘要： The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may have wear faces attached to at least a portion of the outer periphery of a mandrel for contacting the interior surface of the pipe, tube, or screen during expansion. According to another aspect of the invention, an expansion tool has a controlled egress seal between the outer surface of the tool and the inside surface of the expandable tubular. According to another aspect of the invention, an automatically variable diameter expansion tool is provided having a variable diameter cone, which expands, and contracts based on input from one or more sensors. According to another aspect of the invention, an apparatus and method for expanding a length of screen assembly in a subterranean wellbore is provided.
摘要翻译：本发明提供了用于通过使膨胀工具轴向移动通过井径向膨胀展开在地下井中的管状物的装置和方法。膨胀工具装置可以具有连接到心轴的外周的至少一部分的磨损面，用于在膨胀期间接触管，管或筛的内表面。根据本发明的另一方面，膨胀工具在工具的外表面和可膨胀管的内表面之间具有受控的出口密封。根据本发明的另一方面，提供了一种具有可变直径锥体的自动可变直径膨胀工具，其基于来自一个或多个传感器的输入而膨胀并收缩。根据本发明的另一方面，提供了一种用于在地下井眼中扩展屏幕组件的长度的装置和方法。

9. 发明授权

US08818776B2 System and method for downhole tool system development 有权
标题翻译：井下工具系统开发的系统和方法
公开(公告)号：US08818776B2
公开(公告)日：2014-08-26
申请号：US11200381
申请日：2005-08-09
申请人： Harold Kent Beck , Kenneth L. Schwendemann , David R. Larimore , Brandon B. Beaver , Alexander G. Krasovsky , Darrin N. Towers
发明人： Harold Kent Beck , Kenneth L. Schwendemann , David R. Larimore , Brandon B. Beaver , Alexander G. Krasovsky , Darrin N. Towers
IPC分类号： G06G7/48 , E21B47/00
CPC分类号： E21B47/00 , G06F17/50
摘要： A disclosed method of downhole tool system development comprises: receiving specifications of a downhole tool system that comprises multiple strings, each string having one or more components; and checking for interference between the multiple strings in an initial position. A disclosed system comprises: a memory that stores software; and a processor coupled to the memory to execute the software. The software causes the processor to provide a graphical user interface that enables a user to specify a downhole tool system having multiple strings, and to test the strings for diametrical overlap attributable to relative motion of the strings.
摘要翻译：所公开的井下工具系统开发方法包括：接收包括多个串的井下工具系统的规格，每个串具有一个或多个部件; 并检查初始位置处的多个串之间的干扰。所公开的系统包括：存储软件的存储器; 以及耦合到所述存储器以执行所述软件的处理器。软件使得处理器提供图形用户界面，使用户能够指定具有多个串的井下工具系统，并且测试由于弦的相对运动引起的径向重叠的弦。

10. 再颁专利

USRE42733E1 Wear-resistant, variable diameter expansion tool and expansion methods 有权
标题翻译：耐磨，可变直径膨胀工具和膨胀方法
公开(公告)号：USRE42733E1
公开(公告)日：2011-09-27
申请号：US11408271
申请日：2006-04-20
申请人： John C. Gano , Kenneth L. Schwendemann , Darrin N. Towers , Ralph Harvey Echols , Perry Carter Shy
发明人： John C. Gano , Kenneth L. Schwendemann , Darrin N. Towers , Ralph Harvey Echols , Perry Carter Shy
IPC分类号： E21B43/10
CPC分类号： E21B43/105
摘要： The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may have wear faces attached to at least a portion of the outer periphery of a mandrel for contacting the interior surface of the pipe, tube, or screen during expansion. According to another aspect of the invention, an expansion tool has a controlled egress seal between the outer surface of the tool and the inside surface of the expandable tubular. According to another aspect of the invention, an automatically variable diameter expansion tool is provided having a variable diameter cone, which expands, and contracts based on input from one or more sensors. According to another aspect of the invention, an apparatus and method for expanding a length of screen assembly in a subterranean wellbore is provided.
摘要翻译：本发明提供了用于通过使膨胀工具轴向移动通过井径向膨胀展开在地下井中的管状物的装置和方法。膨胀工具装置可以具有连接到心轴的外周的至少一部分的磨损面，用于在膨胀期间接触管，管或筛的内表面。根据本发明的另一方面，膨胀工具在工具的外表面和可膨胀管的内表面之间具有受控的出口密封。根据本发明的另一方面，提供了一种具有可变直径锥体的自动可变直径膨胀工具，其基于来自一个或多个传感器的输入而膨胀并收缩。根据本发明的另一方面，提供了一种用于在地下井眼中扩展屏幕组件的长度的装置和方法。

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