-
公开(公告)号：US07575049B2
公开(公告)日：2009-08-18
申请号：US11434358
申请日：2006-05-15
申请人： Calvin J. Stowe , Evan G. Lewis , Mohan L. Soni , Daniel R. Hart
发明人： Calvin J. Stowe , Evan G. Lewis , Mohan L. Soni , Daniel R. Hart
CPC分类号： E21B29/06
摘要： An assembly for milling a window in a tubular features a layout that keeps a restorative force normal to the whipstock slope acting on the window mill to help it track the whipstock ramp long enough for making an exit at the desired location. A string mill assembly is made long enough to allow such a restorative force to be created on the window mill as it advances down the ramp. The bearing or cutting structures on the string mill are positioned with respect to the window mill so that either the top of the string mill or at least the first bearing structure above the window mill presents at the top of the window as the window mill arrives at the position where it is desired that it make an exit. The lower bearing structure of the string mill also preferably has a rounded profile to facilitate its entrance on to the whipstock ramp without getting in a bind on the tubular wall adjacent the top of the window.
摘要翻译： 用于铣削管道中的窗口的组件具有一种布局，其将恢复力保持垂直于作用在窗玻璃上的造斜斜坡，以帮助其跟踪造斜斜坡，足以使其在所需位置处出口。 弦碾机组件被制成足够长的时间，以允许在窗碾机上沿着斜坡进入时产生这样的修复力。 串磨机上的轴承或切割结构相对于窗口磨机定位，使得当研磨机到达时，弦磨机的顶部或窗玻璃上方的至少第一轴承结构呈现在窗口的顶部 希望它退出的位置。 串磨机的下轴承结构也优选具有圆形轮廓，以便于其进入造斜坡坡道而不会在邻近窗口顶部的管状壁上结合。
-
公开(公告)号：US07231979B2
公开(公告)日：2007-06-19
申请号：US10755489
申请日：2004-01-12
申请人： Dave Stephen , James A. Sonnier , Joseph P. Degeare , Rustom K. Mody , Mohan L. Soni , Daniel R. Hart
发明人： Dave Stephen , James A. Sonnier , Joseph P. Degeare , Rustom K. Mody , Mohan L. Soni , Daniel R. Hart
IPC分类号： E21B29/06
CPC分类号： E21B7/061
摘要： A short radius exit from a window milled in casing is possible using a whipstock with a sloping surface in excess of 3.5° and a window mill whose diameter is reduced to a percentage generally below about 95% of the casing inside diameter in a mono-bore or non-through tubing application. The system provides a greater flexibility in choosing the window location and eliminates having to penetrate adjacent formations as compared to previous techniques using a longer exit radius. The decrease in mill diameter, as compared to previous techniques, limits stresses on the milling equipment to minimize equipment failures during window milling and subsequent drilling of the lateral.
摘要翻译： 使用倾斜表面超过3.5°的造斜器可以使用在外壳中铣削的窗口的短半径出口，并且直径通常低于单孔中的壳体内径的约95％的百分比的窗口磨 或非通过管道应用。 与使用更长出口半径的先前技术相比，该系统在选择窗口位置方面提供了更大的灵活性，并且消除了穿透相邻地层的能力。 与以前的技术相比，轧机直径的减小限制了铣削设备上的应力，以最小化窗铣和随后的横向钻孔时的设备故障。
-
公开(公告)号：US06408946B1
公开(公告)日：2002-06-25
申请号：US09561484
申请日：2000-04-28
IPC分类号： E21B2304
摘要： An apparatus for disconnecting a bottom hole assembly from a work string, having an upper tool body, a piston biased away from a slidable collet, locking dogs held in engagement with a lower tool body by the slidable collet, and one or more collet fingers holding the collet in place, relative to the upper body. The piston can be hydraulically displaced against the biasing spring, thereby releasing the collet finger, followed by further displacement of the piston to contact the collet, then displacement of the piston and the collet to release the locking dogs from engagement with the lower tool body. A shear pin in the collet can provide a positive pressure indication of release of the disconnect device.
摘要翻译： 一种用于将底部孔组件与工作线断开的装置，具有上部工具主体，偏离可滑动夹头的活塞，通过可滑动夹头保持与下部工具主体接合的锁定爪，以及一个或多个夹头 夹头就位，相对于上身。 活塞可以克服偏压弹簧被液压地移位，由此释放夹头，随后进一步移动活塞以接触夹头，然后移动活塞和夹头，以使锁定爪不与下部工具主体接合。 夹头中的剪切销可以提供断开装置的释放的正压指示。
-
公开(公告)号：US20180283120A1
公开(公告)日：2018-10-04
申请号：US15471544
申请日：2017-03-28
CPC分类号： E21B29/005 , E21B21/00
摘要： A milling apparatus for cutting a tubular in a wellbore includes a cutting element on a tool body configured to cut the tubular in a wellbore when the cutting element is activated when the tool is moving upward inside the tubular. The cutting element cuts the tubular to form cuttings that fall into an annulus between the tubular and the wellbore. An agitator below the cutting element agitates the cuttings in the annulus to aid the cuttings to move from the annulus into the wellbore below the milling apparatus.
-
公开(公告)号：US20090255664A1
公开(公告)日：2009-10-15
申请号：US12103023
申请日：2008-04-15
申请人： Daniel R. Hart , Roy E. Swanson , Kjell Nygardsvoll , Songfeng Yang , Christopher W. Guidry , Charles W. Pleasants
发明人： Daniel R. Hart , Roy E. Swanson , Kjell Nygardsvoll , Songfeng Yang , Christopher W. Guidry , Charles W. Pleasants
IPC分类号： E21B7/04
CPC分类号： E21B7/061 , E21B23/002 , E21B41/0042
摘要： A combination whipstock and seal bore diverter system includes a whipstock; and a diverter configured to receive and support the whipstock in a selected orientation, the system being installable in a single run in a borehole.
摘要翻译： 组合造斜器和密封孔分流器系统包括造斜器; 以及分配器，其构造成以选定的方向接收和支撑造斜器，所述系统可以在钻孔中单次运行安装。
-
公开(公告)号：US11512551B2
公开(公告)日：2022-11-29
申请号：US16995603
申请日：2020-08-17
摘要： A work string and method of performing a downhole operation is disclosed. The work string includes a first tool having a first ball seat configured to activate when a first activation pressure is applied to a plug seated at the first ball seat, and a second tool having a second ball seat configured to activate when a second activation pressure is applied to the plug when seated at the second ball seat, wherein the first activation pressure is different than the second activation pressure. A plug is dropped through a string in a wellbore. The first activation pressure is applied when the plug is at the first tool to activate the first tool. The second activation pressure is applied when the plug is at the second tool to activate the second tool.
-
公开(公告)号：US10309178B2
公开(公告)日：2019-06-04
申请号：US14947543
申请日：2015-11-20
申请人： Daniel R. Hart
发明人： Daniel R. Hart
IPC分类号： E21B29/00
摘要： A mill for milling a casing in a wellbore. The mill includes a plurality of radially extendable cutting members on a body. An activation device extends the cutting members radially outward from the body upon application of a hydraulic pressure to the activation device and mechanically retracts the blades upon removal of the hydraulic pressure from the activation device. The cutting members are separable from the body.
-
8.发明授权公开(公告)号：US08356671B2
公开(公告)日：2013-01-22
申请号：US12860985
申请日：2010-08-23
CPC分类号： E21B21/103 , E21B23/006 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat having a partially annular shape with an outer base and a plurality of retaining segments projecting radially inwardly therefrom. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译： 一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。 该工具可通过具有活塞的致动机构在第一操作位置和第二操作位置之间移动，所述活塞具有球座，其具有部分环形形状，其具有外基部和从其径向向内突出的多个保持段。 该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。
-
公开(公告)号：US20120227973A1
公开(公告)日：2012-09-13
申请号：US13469852
申请日：2012-05-11
IPC分类号： E21B34/14
CPC分类号： E21B21/103 , E21B23/006 , E21B34/063 , E21B34/14
摘要： A wellbore tool which includes a housing having an axial flowbore and a piston sleeve movably disposed within the flowbore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a seat having a plurality of separate arcuate segments. The tool can be moved between first and second operating positions with the use of actuating plugs of different sizes that can be landed upon the seat.
摘要翻译： 一种井眼工具，其包括具有轴向流动孔的壳体和可移动地设置在所述流孔内的活塞套筒。 该工具可通过具有活塞的致动机构在第一操作位置和第二操作位置之间移动，该活塞具有多个单独的弧形段的座。 该工具可以在第一和第二操作位置之间移动，使用可以落在座椅上的不同尺寸的致动插头。
-
公开(公告)号：US5217077A
公开(公告)日：1993-06-08
申请号：US718553
申请日：1991-06-20
申请人： Daniel R. Hart
发明人： Daniel R. Hart
IPC分类号： E21B17/06 , E21B33/12 , E21B33/128
CPC分类号： E21B17/06 , E21B33/12 , E21B33/1216 , E21B33/128
摘要： A resettable downhole packer is provided. Circulation from the surface creates a backpressure behind the packing element that expands the packing element into contact with the wellbore or casing. The tool may be shifted to trap pressure behind the element to retain it in contact with the wellbore or casing while, at the same time permitting flow through the packing element for procedures such as injection or stimulation. The tool incorporates a release mechanism to facilitate retrieval of the tubing string if, for any reason, the tool becomes stuck. Provisions are incorporated into the design to maintain the packing element in a retracted position for the running in and removal to avoid damage to the packing element.
摘要翻译： 提供可复位的井下封隔器。 来自表面的循环在填料元件后面产生背压，使填料元件膨胀成与井眼或套管接触。 该工具可以移动以捕获元件后面的压力，以将其保持与井筒或套管接触，同时允许流过填料元件用于诸如注射或刺激的过程。 如果由于任何原因，工具被卡住，该工具包括释放机构以便于检索油管柱。 将设备结合到设计中以将包装元件保持在缩回位置，以便运行和移除以避免损坏包装元件。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.024 秒)
