公开(公告)号：US07028770B2

公开(公告)日：2006-04-18

申请号：US10260139

申请日：2002-09-30

申请人： Sidney K. Smith, Jr. ,  Martin P. Coronado ,  Andy Tom ,  Van N. Ho ,  Fatih M. Kara

发明人： Sidney K. Smith, Jr. ,  Martin P. Coronado ,  Andy Tom ,  Van N. Ho ,  Fatih M. Kara

IPC分类号： E21B23/00

CPC分类号： E21B43/103 ,  E21B43/105

摘要： Tools for expanding downhole tubulars into each other or in open hole are disclosed. One embodiment uses a movable cone biased by Bellville washers to move longitudinally against such bias and allow collets to move radially in or out to a predetermined maximum diameter. A release system allows collet retraction to avoid hang up on removal. In an alternate embodiment, more suitable for open hole applications, pressurized gas pushes a movable cone longitudinally against the collets. A stationary cone is on the opposite side of the collets from the movable cone. The collet rides out or in between the cones and raises the gas pressure when forced in. A pressure actuated release allows the lower cone to shift downwardly to allow the collets to retract for removal.

公开(公告)号：US07090005B2

公开(公告)日：2006-08-15

申请号：US10941383

申请日：2004-09-15

申请人： Sidney K. Smith, Jr. ,  Martin P. Coronado ,  Andy Tom ,  Van N. Ho ,  Fatih M. Kara

发明人： Sidney K. Smith, Jr. ,  Martin P. Coronado ,  Andy Tom ,  Van N. Ho ,  Fatih M. Kara

IPC分类号： E21B23/00 ,  E21B43/10

CPC分类号： E21B43/103 ,  E21B43/105

摘要： Tools for expanding downhole tubulars into each other or in open hole are disclosed. One embodiment uses a movable cone biased by Bellville washers to move longitudinally against such bias and allow collets to move radially in or out to a predetermined maximum diameter. A release system allows collet retraction to avoid hang up on removal. In an alternate embodiment, more suitable for open hole applications, pressurized gas pushes a movable cone longitudinally against the collets. A stationary cone is on the opposite side of the collets from the movable cone. The collet rides out or in between the cones and raises the gas pressure when forced in. A pressure actuated release allows the lower cone to shift downwardly to allow the collets to retract for removal.

公开(公告)号：US06173786B1

公开(公告)日：2001-01-16

申请号：US09265297

申请日：1999-03-09

申请人： Timothy W. Sampson ,  Van N. Ho ,  Garry R. Kaiser

发明人： Timothy W. Sampson ,  Van N. Ho ,  Garry R. Kaiser

IPC分类号： E21B2308

CPC分类号： E21B23/04 ,  E21B17/06

摘要： A running tool is disclosed to deliver tools downhole, preferably supported on a wireline. The running tool will not release the downhole tool before the desired depth is reached, even if an obstruction is encountered. The tool has the ability to release upon application of pressure in the wellbore. The tool features a floating piston with a pre-charged chamber on one side. Hydrostatic pressure acts on the opposite side of the floating piston as the running tool descends. When the downhole tool reaches its desired depth and becomes supported, slacking on the wireline traps the hydrostatic on one side of the floating piston. Applied wellbore pressure, acting on a release piston exposed to the trapped hydrostatic on its opposite side, shifts the release piston and releases the running tool from the downhole tool. On the way uphole, the trapped hydrostatic pressure is released.

摘要翻译： 公开了一种运行工具，用于在井下运送工具，优选地支撑在有线上。 运行工具在达到所需深度之前不会释放井下工具，即使遇到障碍物。 该工具具有在井筒中施加压力时释放的能力。 该工具具有在一侧具有预充气室的浮动活塞。 当运行工具下降时，静压力作用在浮动活塞的相对侧。 当井下工具达到所需的深度并被支撑时，钢丝绳上的松弛将浮动活塞的一侧上的静液压捕获。 作用在释放活塞上的应用井筒压力，在释放活塞的相对侧暴露于被捕获的静水压力，使释放活塞移动并从井下工具释放运行的工具。 在途中，被捕获的静水压力被释放。