公开(公告)号：US06820697B1

公开(公告)日：2004-11-23

申请号：US10031219

申请日：2002-01-15

Applicant: Andrew Philip Churchill

Inventor： Andrew Philip Churchill

IPC: E21B3414

CPC classification number: E21B23/006 ,  E21B21/103 ,  E21B34/08

Abstract: A fluid flow actuated downhole tool is configurable in at least a first tool configuration and a second tool configuration. The tool comprises a tubular housing and an activating sleeve, the housing being adapted to catch the sleeve when the sleeve is dropped from surface and the engagement of the sleeve with the housing permitting actuation.of the tool between the first and second tool configurations. A flow restriction is provided for permitting fluid flow actuation of the tool when the activating sleeve has been caught in the body.

Abstract translation: 流体流动致动井下工具可配置在至少第一工具配置和第二工具配置中。 所述工具包括管状壳体和启动套筒，所述壳体适于在所述套筒从表面下落时抓住所述套筒，并且所述套筒与所述壳体的接合允许所述工具在所述第一和第二工具配置之间的致动。 提供流动限制，用于当活动套筒已经被卡在身体中时允许工具的流体流动致动。

公开(公告)号：US20090173495A1

公开(公告)日：2009-07-09

申请号：US12347514

申请日：2008-12-31

Applicant: Andrew Philip Churchill

Inventor： Andrew Philip Churchill

IPC: E21B47/09 ,  E21B41/00

CPC classification number: E21B23/02 ,  E21B23/08 ,  E21B41/00 ,  E21B47/09

Abstract: A method of checking for restrictions in a string of tubing formed of a plurality of tubing sections. The method involves providing a profile in the tubing string, providing a drift member adapted to engage with the profile, passing the drift member through the tubing string, and determining whether the drift member has engaged with the profile prior to separating the tubing sections.

Abstract translation: 一种检查由多个管段形成的一排管中的限制的方法。 该方法包括在管柱中提供轮廓，提供适于与轮廓接合的漂移构件，使漂移构件穿过油管柱，以及在分离管段之前确定漂移构件是否与轮廓接合。

公开(公告)号：US5639122A

公开(公告)日：1997-06-17

申请号：US537777

申请日：1995-10-10

Applicant: Andrew Philip Churchill

Inventor： Andrew Philip Churchill

IPC: A63C11/02 ,  A63C11/00

CPC classification number: A63C11/026 ,  B62B2202/401

Abstract: Apparatus for transporting skiing equipment comprises a frame, including a clip for holding a pair of skis, pockets for holding a pair of ski boots relative to the skis, and a skid pad; the frame being adapted for location at one end of the pair of skis.

Abstract translation: PCT No.PCT / GB94 / 00743 Sec。 371 1995年10月10日第 102（e）日期1995年10月10日PCT 1994年4月7日PCT PCT。 公开号WO94 / 23809 日期1995年10月27日用于运输滑雪设备的装置包括框架，包括用于保持一对滑雪板的夹子，相对于滑雪板保持一对滑雪靴的口袋和滑板; 该框架适于位于一对滑雪板的一端。

公开(公告)号：US20090056952A1

公开(公告)日：2009-03-05

申请号：US12094988

申请日：2006-11-24

Applicant: Andrew Philip Churchill

Inventor： Andrew Philip Churchill

IPC: E21B34/06 ,  E21B33/12

CPC classification number: E21B21/103 ,  E21B21/10 ,  E21B34/14 ,  E21B41/00

Abstract: A method of actuating a tool in a downhole string comprises utilising a flow restriction, such as a non-return valve, which provides less restriction to fluid flow in the normal direction to induce a reverse fluid pressure differential to permit actuation of the tool.

Abstract translation: 在井下管柱中致动工具的方法包括利用诸如止回阀的流量限制，其对沿法向的流体流动提供较少的限制，以引起反向流体压力差以允许工具的致动。

公开(公告)号：US07472749B2

公开(公告)日：2009-01-06

申请号：US10552109

申请日：2004-04-02

Applicant: Andrew Philip Churchill

Inventor： Andrew Philip Churchill

IPC: E21B47/09

CPC classification number: E21B23/02 ,  E21B23/08 ,  E21B41/00 ,  E21B47/09

Abstract: A method of checking for restrictions in a string of tubing formed of a plurality of tubing sections. The method involves providing a profile in the tubing string, providing a drift member adapted to engage with the profile, passing the drift member through the tubing string, and determining whether the drift member has engaged with the profile prior to separating the tubing sections.

Abstract translation: 一种检查由多个管段形成的一排管中的限制的方法。 该方法包括在管柱中提供轮廓，提供适于与轮廓接合的漂移构件，使漂移构件穿过油管柱，以及在分离管段之前确定漂移构件是否与轮廓接合。

公开(公告)号：US06378612B1

公开(公告)日：2002-04-30

申请号：US09646196

申请日：2000-09-14

Applicant: Andrew Philip Churchill

Inventor： Andrew Philip Churchill

IPC: E21B3408

CPC classification number: E21B23/006 ,  E21B21/103 ,  E21B34/102

Abstract: A downhole tool (20) comprises a body (22), a tool function member (28, 30) axially movable relative to the body (22) from an initial position to an operative position, a first spring (32) responsive to a first fluid pressure force for permitting movement of the tool function member (28) from the initial position to an intermediate position; and a second spring (33) responsive to a higher second fluid pressure force for selectively permitting movement of the tool function member (30) to the operative position. The tool function member may be in one or two parts and may include a bypass sleeve (30).

Abstract translation: 井下工具（20）包括主体（22），相对于主体（22）可从初始位置轴向移动到工作位置的工具功能构件（28,30），第一弹簧（32），其响应于第一 用于允许工具功能构件（28）从初始位置移动到中间位置的流体压力; 以及响应于较高的第二流体压力的第二弹簧（33），用于选择性地允许所述工具功能构件（30）移动到所述操作位置。 工具功能构件可以在一个或两个部分中，并且可以包括旁路套管（30）。