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：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：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。