公开(公告)号：US06209648B1

公开(公告)日：2001-04-03

申请号：US09196495

申请日：1998-11-19

申请人： Herve Ohmer ,  Mark W. Brockman ,  Mikhail V. Gotlib ,  Michael W. Frels

发明人： Herve Ohmer ,  Mark W. Brockman ,  Mikhail V. Gotlib ,  Michael W. Frels

IPC分类号： E21B4100

CPC分类号： E21B47/12 ,  E21B41/0042

摘要： A method and apparatus for establishing connectivity of lateral branch liners to main well casings to achieve predictable and stable mechanical connectivity at the lateral junction of branch well bores to the main well bore to counter the problems of formation instability at the junction. After construction of a well having one or more lateral branches, a retrievable lateral branch template is located in the casing of a main well bore in positioned and oriented registry with a casing window that opens to a lined lateral branch. A retrievable lateral branch connector is then installed in assembly with the template to cooperatively define a production flow path having maximized mechanical integrity and optimized production flow in both the lateral bore and the main bore. The lateral branch template and connector provide the capability to selectively re-enter a lateral branch and to also hydraulically isolate the formation surrounding the junction from fluid circulating in both the lateral branch and the main well bore. Both the lateral branch template and the lateral branch connector are prefabricated and installed into the well by means of running and setting tools. Electrical power or hydraulic pressure conductors incorporated in the template and connector assembly may be used to provide for production operation and control of main and branch well bore production after installation. The equipment can be deployed in wells constructed with any inclination and orientation and can accommodate low or high dogleg severity at kick-off.

摘要翻译： 一种用于建立横向分支衬套到主井壳体的连通性的方法和装置，以在分支井孔到主井筒的侧向连接处实现可预测和稳定的机械连接，以抵抗在连接处的形成不稳定性的问题。 在构造具有一个或多个横向分支的井之后，可回收的侧向分支模板位于主井的壳体中，定位和定向注册与敞开到内衬侧向分支的壳体窗口。 然后将可回收的横向分支连接器与模板组装安装，以协同地限定具有最大化的机械完整性并在侧向孔和主孔中优化的生产流程的生产流程。 横向分支模板和连接器提供选择性地重新进入侧向分支的能力，并且还将连接周围的地层与在侧向分支和主井眼中循环的流体液压地隔离。 横向分支模板和横向分支连接器都通过运行和设置工具预制并安装到井中。 并入模板和连接器组件中的电力或液压导体可用于在安装后提供主和分支井筒生产的生产操作和控制。 该设备可以部署在任何倾斜和方向构造的井中，并且可以在开球时适应低或高的狗腿严重性。

公开(公告)号：US07021385B2

公开(公告)日：2006-04-04

申请号：US10294080

申请日：2002-11-14

申请人： Herve Ohmer ,  Ricardo M. Carossino ,  Jean-Marc Follini ,  Mikhail V. Gotlib

发明人： Herve Ohmer ,  Ricardo M. Carossino ,  Jean-Marc Follini ,  Mikhail V. Gotlib

IPC分类号： E21B34/06

CPC分类号： E21B34/06 ,  E21B21/10 ,  E21B41/0035

摘要： A system and method for preventing blowouts during the deployment of a casing string into a wellbore. The system includes securing a casing coupling to a casing string and securing a retrievable check valve within the casing coupling. The retrievable check valve allows fluid from the surface to be pumped through the retrievable check valve. However, the retrievable check valve prevents upward fluid flow from the wellbore through the retrievable check valve to the surface.

公开(公告)号：US6012527A

公开(公告)日：2000-01-11

申请号：US937032

申请日：1997-09-24

申请人： Spyros S. Nitis ,  Herve Ohmer ,  Mikhail V. Gotlib

发明人： Spyros S. Nitis ,  Herve Ohmer ,  Mikhail V. Gotlib

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B23/02 ,  E21B23/04 ,  E21B29/06 ,  E21B47/024 ,  E21B43/14

CPC分类号： E21B23/04 ,  E21B23/02 ,  E21B29/06 ,  E21B47/024 ,  E21B7/061

摘要： A method and apparatus for landing and orienting selected tools to selected depths within a well casing. The well casing is provided with a plurality of casing nipples located at selected depths with each of the landing and orienting joints defining a differing internal landing profile and having a mule shoe therein defining an upwardly facing point and an orientation slot and having helical guide ramp surfaces extending from the point to the orientation slot. A landing-orientation tool is adapted to be run into the casing and has an outer tubular body mandrel positioning a plurality of landing dogs for landing engagement with a matching landing profile of one of the casing nipples and positioning an orientation key for guided engagement with the helical guide ramp surfaces and for tool orienting engagement within the orientation slot. The landing-orientation tool has an inner tubular actuator mandrel being linearly positionable at a running position where the landing dogs and orientation key are radially yieldable to pass over internal obstructions in the casing string and a locking position where the landing dogs and orientation key are locked with respect to the matching landing profile of a landing and orienting joint. The tool being run will pass through non-matching landing and orienting joints and will land only when its landing dogs have a landing profile matching the profile of a landing and orienting joint.

摘要翻译： 一种用于将所选择的工具着陆并定向到井套管内的选定深度的方法和装置。 井套设置有位于选定深度处的多个套管接头，其中每个着陆和定向接头限定不同的内部着陆轮廓，并且在其中具有骡子鞋，其限定向上的点和定向槽，并且具有螺旋形导向斜面 从点延伸到定位槽。 着陆方向工具适于运行到套管中，并且具有定位多个着陆部件的外管状心轴，用于与套管接头中的一个的匹配的着陆轮廓着陆接合，并且定位用于与 螺旋引导斜面和用于定向槽内的刀具定位接合。 着陆方向工具具有内部管状致动器心轴，其可在行走位置处直线定位，其中着陆挡板和定位键可径向屈服以穿过套管柱中的内部障碍物以及锁定位置，其中着陆挡板和定向键被锁定 关于着陆和定向关节的匹配着陆轮廓。 正在运行的工具将通过不匹配的着陆和定向关节，并且仅在其着陆狗具有与着陆和定向关节的轮廓匹配的着陆轮廓时着陆。

公开(公告)号：US07165618B2

公开(公告)日：2007-01-23

申请号：US10701325

申请日：2003-11-04

申请人： Mark W. Brockman ,  Herve Ohmer ,  David L. Malone

发明人： Mark W. Brockman ,  Herve Ohmer ,  David L. Malone

IPC分类号： E21B43/00

CPC分类号： E21B41/0042 ,  E21B17/003 ,  E21B17/028 ,  E21B41/0035 ,  E21B47/12 ,  E21B47/122

摘要： A method and apparatus that allows communications of electrical power and signaling from downhole component to another downhole component employs an inductive coupler assembly. In one arrangement, one portion of the inductive coupler assembly is attached to a production tubing section and the other portion of the inductive coupler assembly is attached to a casing or other liner section. The production tubing inductive coupler portion is electrically connected to a cable over which electrical power and signals may be transmitted. Such power and signals are magnetically coupled to the inductive coupler portion in the casing or liner section and communicated to various electrical devices mounted outside the casing or liner section. In other arrangements, inductive coupler assemblies may be used to couple electrical power and signals from the main bore to components in lateral branches of a multilateral well.

摘要翻译： 允许从井下部件到另一井下部件的电力和信令的通信的方法和装置采用电感耦合器组件。 在一种布置中，电感耦合器组件的一部分附接到生产管道部分，并且电感耦合器组件的另一部分附接到壳体或其它衬套部分。 生产管道电感耦合器部分电连接到可以传输电功率和信号的电缆。 这种功率和信号被磁耦合到壳体或衬套部分中的感应耦合器部分并且传递到安装在壳体或衬套部分外部的各种电气装置。 在其他布置中，电感耦合器组件可用于将来自主孔的电功率和信号耦合到多边井的侧向分支中的组件。

公开(公告)号：US06684952B2

公开(公告)日：2004-02-03

申请号：US09859944

申请日：2001-05-17

申请人： Mark W. Brockman ,  Herve Ohmer ,  David L. Malone

发明人： Mark W. Brockman ,  Herve Ohmer ,  David L. Malone

IPC分类号： E21B4712

CPC分类号： E21B41/0042 ,  E21B17/003 ,  E21B17/028 ,  E21B41/0035 ,  E21B47/12 ,  E21B47/122

摘要： A method and apparatus that allows communications of electrical power and signaling from downhole component to another downhole component employs an inductive coupler assembly. In one arrangement, one portion of the inductive coupler assembly is attached to a production tubing section and the other portion of the inductive coupler assembly is attached to a casing or other liner section. The production tubing inductive coupler portion is electrically connected to a cable over which electrical power and signals may be transmitted. Such power and signals are magnetically coupled to the inductive coupler portion in the casing or liner section and communicated to various electrical devices mounted outside the casing or liner section. In other arrangements, inductive coupler assemblies may be used to couple electrical power and signals from the main bore to components in lateral branches of a multilateral well.

公开(公告)号：US06568469B2

公开(公告)日：2003-05-27

申请号：US09789187

申请日：2001-02-20

申请人： Herve Ohmer ,  Mark W. Brockman

发明人： Herve Ohmer ,  Mark W. Brockman

IPC分类号： E21B4300

CPC分类号： E21B41/0042 ,  E21B47/12

摘要： A well completion apparatus and method comprises a junction assembly having a template and a lateral branch connector engageable with the template to couple a main bore to a lateral branch bore. To improve inter-engagement characteristics of the template and connector, one arrangement of the junction assembly utilizes a continuous rail and groove inter-engagement mechanism. In another arrangement, a portion of the rail and groove inter-engagement mechanism is segmented instead of continuous. A method and apparatus is also provided in some arrangements to enable placement of intelligent completion devices in a lateral branch. Additionally, some junction assemblies comprise flow control mechanisms to control commingling, or not, of fluids from different regions in the well bore.

摘要翻译： 完井设备和方法包括具有模板的接合组件和可与模板接合的侧向分支连接器，以将主孔连接到侧向分支孔。 为了改善模板和连接器的相互接合特性，接合组件的一种布置利用了连续的轨道和沟槽相互接合机构。 在另一种布置中，轨道和沟槽相互接合机构的一部分被分段而不是连续的。 在一些布置中还提供了一种方法和装置，以便能够将智能完成装置放置在横向分支中。 另外，一些连接组件包括用于控制来自井眼中不同区域的流体的流动控制机构。

公开(公告)号：US06405804B1

公开(公告)日：2002-06-18

申请号：US09521741

申请日：2000-03-09

申请人： Herve Ohmer ,  Adrian Vuyk, Jr. ,  Mark W. Brockman

发明人： Herve Ohmer ,  Adrian Vuyk, Jr. ,  Mark W. Brockman

IPC分类号： E21B708

CPC分类号： E21B7/061 ,  E21B29/06

摘要： A method and apparatus for predictable downhole milling of a casing window having predetermined location, orientation, dimension and contour geometry. An elongate substantially rigid milling shaft has at least one casing window milling element in fixed relation therewith and has a pilot mill in articulated and rotary driven connection with the milling shaft. The milling shaft is in articulated and rotary driven connection with a rotary drive mechanism. The articulated connection of the pilot mill and milling shaft may incorporate an articulation control system to permit the pilot mill to be maintained substantially coaxial with the milling shaft so that its trajectory at a predetermined stage of window milling can be controlled by the milling shaft when positive guiding by a deflecting tool can no longer be ensured. The deflecting tool is adapted to be set within the well casing and defines an inclined pilot mill guide surface for guiding the pilot mill along a predetermined inclined trajectory for milling into the well casing. The deflecting tool incorporates a generally cylindrical bearing for guiding and providing rotational stabilization to the pilot mill during initial window milling to ensure the accuracy of the pilot bore being milled through the well casing and into the surrounding formation. During window milling the pilot mill guides the milling shaft so that the string mills of the milling shaft remove a portion of the pilot mill guide bearing and form a guide face of predetermined contour on the deflecting tool for guiding other tools through the casing window and into the lateral bore. The deflecting tool may be of tubular geometry so as to guide not only the pilot mill but also the string mill and may also receive the rotary drive motor for guiding and stabilizing thereof.

摘要翻译： 一种具有预定位置，方向，尺寸和轮廓几何形状的壳体窗口可预测井下铣削的方法和装置。 细长的基本上刚性的铣削轴具有与其固定关系的至少一个壳体窗铣削元件，并且具有与铣削轴铰接和旋转驱动连接的先导磨。 铣削轴与旋转驱动机构铰接和旋转驱动连接。 先导磨机和铣削轴的铰接连接可以包括铰接控制系统，以允许先导磨机与铣削轴保持基本上同轴，使得其在窗铣的预定阶段的轨迹可以由铣削轴当正时 不能确保由偏转工具引导。 偏转工具适于设置在井套内并且限定倾斜的先导式轧机引导表面，用于沿着预定的倾斜轨迹引导先导式铣刀，用于铣削到井套管中。 偏转工具包括一个大体上圆柱形的轴承，用于在初始窗铣过程中引导和提供旋转稳定性到先导式磨机，以确保先导孔的精度通过井套被铣削并进入周围地层。 在铣削铣削期间，先导铣刀引导铣削轴，使得铣削轴的线铣刀移除导向铣刀导向轴承的一部分，并在偏转工具上形成预定轮廓的引导面，用于引导其他工具穿过套管窗口并进入 横向孔。 偏转工具可以是管状几何形状，以便不仅引导先导磨机而且还引导串磨机，还可以接收用于引导和稳定旋转驱动马达。

公开(公告)号：US06318466B1

公开(公告)日：2001-11-20

申请号：US09519445

申请日：2000-03-06

申请人： Herve Ohmer ,  Mark W. Brockman ,  Platon Koptilov ,  Adrian Vuyk, Jr.

发明人： Herve Ohmer ,  Mark W. Brockman ,  Platon Koptilov ,  Adrian Vuyk, Jr.

IPC分类号： E21B2906

CPC分类号： E21B7/061 ,  E21B29/06

摘要： A method and apparatus that comprises releasably securing a milling tool to a deflecting tool using a securing mechanism. The securing mechanism comprises a member that is adapted to be broken by milling action of the milling tool. In addition, in some arrangements, a protective mechanism protects abrasive inserts on a pilot mill of the milling tool.

摘要翻译： 一种方法和装置，其包括使用固定机构将铣削工具可释放地固定到偏转工具。 固定机构包括适于通过铣削工具的铣削作用而被破坏的构件。 此外，在一些布置中，保护机构保护研磨刀片在研磨工具的先导磨机上。

公开(公告)号：US06267179B1

公开(公告)日：2001-07-31

申请号：US09518350

申请日：2000-03-03

申请人： Herve Ohmer ,  Platon Koptilov ,  Mark W. Brockman

发明人： Herve Ohmer ,  Platon Koptilov ,  Mark W. Brockman

IPC分类号： E21B2906

CPC分类号： E21B7/061 ,  E21B29/06

摘要： A method and apparatus for predictable downhole milling of a casing window having predetermined location, orientation, dimension and contour geometry. An elongate substantially rigid milling shaft has at least one casing window milling element in fixed relation therewith and has a pilot mill in articulated and rotary driven connection with the milling shaft. The milling shaft is in articulated and rotary driven connection with a rotary drive mechanism. The articulated connection of the pilot mill and milling shaft may incorporate an articulation control system to permit the pilot mill to be maintained substantially coaxial with the milling shaft so that its trajectory at a predetermined stage of window milling can be controlled by the milling shaft when positive guiding by a deflecting tool can no longer be ensured. The deflecting tool is adapted to be set within the well casing and defines an inclined pilot mill guide surface for guiding the pilot mill along a predetermined inclined trajectory for milling into the well casing. The deflecting tool incorporates a generally cylindrical bearing for guiding and providing rotational stabilization to the pilot mill during initial window milling to ensure the accuracy of the pilot bore being milled through the well casing and into the surrounding formation. During window milling the pilot mill guides the milling shaft so that the string mills of the milling shaft remove a portion of the pilot mill guide bearing and form a guide face of predetermined contour on the deflecting tool for guiding other tools through the casing window and into the lateral bore. The deflecting tool may be of tubular geometry so as to guide not only the pilot mill but also the string mill and may also receive the rotary drive motor for guiding and stabilizing thereof.

摘要翻译： 一种具有预定位置，方向，尺寸和轮廓几何形状的壳体窗口可预测井下铣削的方法和装置。 细长的基本上刚性的铣削轴具有与其固定关系的至少一个壳体窗铣削元件，并且具有与铣削轴铰接和旋转驱动连接的先导磨。 铣削轴与旋转驱动机构铰接和旋转驱动连接。 先导磨机和铣削轴的铰接连接可以包括铰接控制系统，以允许先导磨机与铣削轴保持基本上同轴，使得其在窗铣的预定阶段的轨迹可以由铣削轴当正时 不能确保由偏转工具引导。 偏转工具适于设置在井套内并且限定倾斜的先导式轧机引导表面，用于沿着预定的倾斜轨迹引导先导式铣刀，用于铣削到井套管中。 偏转工具包括一个大体上圆柱形的轴承，用于在初始窗铣过程中引导和提供旋转稳定性到先导式磨机，以确保先导孔的精度通过井套被铣削并进入周围地层。 在铣削铣削期间，先导铣刀引导铣削轴，使得铣削轴的线铣刀移除导向铣刀导向轴承的一部分，并在偏转工具上形成预定轮廓的引导面，用于引导其他工具穿过套管窗口并进入 横向孔。 偏转工具可以是管状几何形状，以便不仅引导先导磨机而且还引导串磨机，还可以接收用于引导和稳定旋转驱动马达。

公开(公告)号：US06863129B2

公开(公告)日：2005-03-08

申请号：US10035681

申请日：2001-11-09

申请人： Herve Ohmer ,  Mark W. Brockman

发明人： Herve Ohmer ,  Mark W. Brockman

IPC分类号： E21B7/08 ,  E21B17/00 ,  E21B17/20 ,  E21B41/00 ,  E21B47/12

CPC分类号： E21B47/12 ,  E21B17/203 ,  E21B41/0042

摘要： A well completion apparatus and method comprises a junction assembly having a template and a lateral branch connector sealably engageable with the template to couple a main bore to a lateral branch bore. The template has a lateral window for positioning proximal a junction of the lateral branch bore and the main bore. The lateral branch connector is adapted to be engaged in the template so that a portion of the connector extends through the lateral window of the template. Plural flow paths comprise a first flow path in communication with the lateral branch, and a second flow path for communicating with a portion of the main bore below the junction.

摘要翻译： 完井设备和方法包括具有模板和横向分支连接器的接合组件，其可与模板密封地接合以将主孔连接到侧向分支孔。 模板具有用于定位在侧向分支孔和主孔的接合处的侧面窗口。 横向分支连接器适于接合在模板中，使得连接器的一部分延伸穿过模板的侧窗。 多个流动路径包括与横向分支连通的第一流动路径和用于与该连接点下方的主孔的一部分连通的第二流动路径。