公开(公告)号：US5743331A

公开(公告)日：1998-04-28

申请号：US715573

申请日：1996-09-18

申请人： Courtney W. Adkins ,  Thurman B. Carter ,  William A. Blizzard, Jr. ,  Richard M. Ward

发明人： Courtney W. Adkins ,  Thurman B. Carter ,  William A. Blizzard, Jr. ,  Richard M. Ward

IPC分类号： E21B21/10 ,  E21B23/00 ,  E21B23/04 ,  E21B29/06 ,  E21B34/10 ,  E21B29/00

CPC分类号： E21B21/10 ,  E21B23/006 ,  E21B23/04 ,  E21B29/06 ,  E21B34/10

摘要： The present invention, in one aspect, discloses a system for selectively anchoring a wellbore tool at a desired location in a wellbore or tubular member such as casing or tubing; such a system with a selectively settable anchor assembly that has a piston that is moved upwardly by fluid under pressure from the surface thereby moving one or more movable slips out from a body of the anchor assembly to set the anchor assembly in place; and such a system with a whipstock connected to the anchor assembly. Fluid under pressure pumped from the surface down a workstring to which the system is connected flows to the anchor assembly through or adjacent the whipstock. In one aspect a mill (or mills) is releasably connected to the whipstock. In one aspect, fluid under pressure flows through or adjacent the mill(s) to the whipstock. In one aspect a selectively actuable valve assembly is provided for selectively controlling the flow of fluid under pressure from an inlet end of the valve assembly out through an outlet end thereof for flow, e.g., to a mill, whipstock and/or anchor assembly. In one aspect such a valve assembly is used with a system as previously described to selectively provide actuating fluid under pressure to an anchor assembly as described to set the movable slip(s) thereof and, in one aspect, to then provide jetting fluid to jetting ports of the mill(s) upon release of the mill(s) from a whipstock.

摘要翻译： 本发明在一个方面公开了一种用于将井眼工具选择性地固定在诸如套管或管道的井筒或管状构件中的期望位置处的系统; 这种具有可选择性地固定的锚固组件的系统具有活塞，所述活塞在压力下由表面从流体向上移动，从而将一个或多个可移动滑动件从锚固组件的主体移出，以将锚固组件设置在适当位置; 以及具有连接到锚固组件的造斜器的这种系统。 从表面向下泵送的压力下的流体在系统连接到的工作系统上通过或靠近造斜器流到锚固组件。 在一个方面，磨机（或磨机）可释放地连接到造斜器。 在一个方面，压力下的流体流过或邻近研磨机到造斜器。 在一个方面，提供了一种选择性致动的阀组件，用于选择性地控制来自阀组件的入口端的压力下的流体的流动通过其出口端流动，例如流到磨机，造斜器和/或锚组件。 在一个方面，这样的阀组件与如前所述的系统一起使用，以在压力下选择性地将致动流体提供给如所述的锚固组件，以设置其可移动滑移，并且在一个方面，然后提供喷射流体到喷射 铣刀从造斜器上释放出来的磨机端口。

公开(公告)号：US06209636B1

公开(公告)日：2001-04-03

申请号：US09264546

申请日：1999-03-07

申请人： John D. Roberts ,  Jan Drechsler ,  Tom Salversen ,  Tom Unsgaard ,  Eirik Enerstvedt ,  William A. Blizzard, Jr. ,  Dale E. Langford ,  Thurman B. Carter

发明人： John D. Roberts ,  Jan Drechsler ,  Tom Salversen ,  Tom Unsgaard ,  Eirik Enerstvedt ,  William A. Blizzard, Jr. ,  Dale E. Langford ,  Thurman B. Carter

IPC分类号： E21B2304

CPC分类号： E21B7/10 ,  E21B7/061 ,  E21B10/006 ,  E21B10/04 ,  E21B10/08 ,  E21B10/46 ,  E21B10/50 ,  E21B10/567 ,  E21B10/60 ,  E21B10/62 ,  E21B12/04 ,  E21B17/02 ,  E21B17/1092 ,  E21B21/10 ,  E21B23/00 ,  E21B23/01 ,  E21B23/02 ,  E21B23/04 ,  E21B23/06 ,  E21B29/06 ,  E21B33/127 ,  E21B33/1275 ,  E21B34/10 ,  E21B34/101 ,  E21B41/0035 ,  E21B44/005 ,  E21B47/091 ,  E21B49/06

摘要： A new wellbore apparatus has been invented which, in certain aspects, has anchor apparatus for anchoring the wellbore apparatus in a bore, the anchor apparatus actuated by fluid under pressure supplied thereto, and sealing apparatus selectively inflatable to close off the bore to fluid flow therethrough, and temperature compensating apparatus for maintaining a desired fluid pressure in the sealing apparatus to prevent it from bursting or deflating. A method for closing off a bore in a well has been invented which, in certain aspects, includes installing wellbore apparatus in the bore, the wellbore apparatus comprising anchor apparatus for anchoring the wellbore apparatus in a bore, the anchor apparatus actuated by fluid under pressure supplied thereto, and sealing apparatus interconnected with the anchor apparatus and selectively inflatable with fluid under pressure to close off the bore to fluid flow therethrough, and the wellbore apparatus upon anchoring in the bore and inflation of the sealing apparatus including a primary barrier in the bore.

摘要翻译： 已经发明了一种新的井筒装置，其在某些方面具有用于将井筒装置锚固在孔中的锚固装置，锚定装置由供应到其上的压力下的流体致动，以及密封装置选择性地可充气以将孔关闭以流过其中的流体流动 以及温度补偿装置，用于在密封装置中保持期望的流体压力以防止其破裂或放气。 已经发明了一种用于封闭井中的孔的方法，其在某些方面包括在孔中安装井眼装置，井筒装置包括用于将井筒装置锚固在孔中的锚固装置，锚定装置由压力下的流体致动 以及与锚定装置互连的密封装置，并且与压力下的流体一起选择性地充气以关闭孔以流过其中的流体;以及井眼装置锚固在孔中并且密封装置的充气包括孔中的主要阻挡层 。

公开(公告)号：US5887655A

公开(公告)日：1999-03-30

申请号：US790543

申请日：1997-01-30

申请人： David M. Haugen ,  William A. Blizzard, Jr. ,  Mark W. Schnitker ,  Steve R. Delgado ,  Thurman B. Carter ,  John D. Roberts ,  Joseph D. Mills ,  Frederick T. Tilton ,  Paul J. Johantges ,  Charles W. Pleasants

发明人： David M. Haugen ,  William A. Blizzard, Jr. ,  Mark W. Schnitker ,  Steve R. Delgado ,  Thurman B. Carter ,  John D. Roberts ,  Joseph D. Mills ,  Frederick T. Tilton ,  Paul J. Johantges ,  Charles W. Pleasants

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B10/46 ,  E21B10/50 ,  E21B10/60 ,  E21B12/04 ,  E21B23/00 ,  E21B23/01 ,  E21B23/02 ,  E21B29/06 ,  E21B49/06 ,  E21B29/00

CPC分类号： E21B17/1092 ,  E21B10/46 ,  E21B10/50 ,  E21B10/60 ,  E21B12/04 ,  E21B23/00 ,  E21B23/01 ,  E21B23/02 ,  E21B29/06 ,  E21B49/06 ,  E21B7/061

摘要： Wellbore operations (e.g. for milling and/or drilling) are disclosed which require a reduced number of tool trips into a wellbore to create a cut-out pocket, opening, or window in a tubular such as casing in the wellbore; and, in some aspects, to continue into a formation adjacent a main wellbore forming a lateral wellbore in communication with the main wellbore. Preferably one trip is required to complete a window or a window and the lateral wellbore. In one aspect a full gauge tool body is used so that the completed lateral wellbore is of a substantially uniform diameter along its entire length, which, in one aspect is suitable for the passage therethrough of full gauge tools, pipe, devices, and apparatuses. In one aspect a cutting system has cutting apparatus initially covered with a wearable away material which is worn away by contacting a tubular to be milled, exposing the cutting apparatus for milling and/or for drilling formation adjacent the wellbore. In certain aspects the lateral wellbore is: about one foot long; two feet long or less; five feet long or less; between five feet and fifty feet long; one hundred feet long or less; between about one hundred and about two hundred feet long; or two hundred or more feet long. In one aspect mill-drill tools are disclosed that both mill tubulars and drill formation.

摘要翻译： 公开了井筒操作（例如用于铣削和/或钻孔），其需要减少进入井眼的工具数量，以在诸如井筒中的诸如套管的管状物中产生切口袋，开口或窗口; 并且在一些方面，继续形成与主井眼相邻的形成与主井眼相连通的侧井筒的地层。 优选地，需要一次行程来完成窗户或窗户和侧井筒。 在一个方面，使用全量规工具主体，使得完整的侧面井眼沿其整个长度具有基本均匀的直径，在一个方面，其适用于全量规工具，管道，装置和装置的通过。 在一个方面，切割系统具有最初用可磨损材料覆盖的切割装置，所述材料通过接触待研磨的管状物而被磨损，暴露所述切割装置用于在井眼附近进行研磨和/或钻孔成形。 在某些方面，侧井眼是：约一英尺长; 两英尺长或以下; 五英尺长或以下; 五英尺五十英尺之间; 一百英尺长或以下; 长约一百到二百呎之间; 或两百多英尺长。 在一个方面，公开了一种铣刀钻具，其既是铣管和钻孔成形。

公开(公告)号：US5826651A

公开(公告)日：1998-10-27

申请号：US688651

申请日：1996-07-30

申请人： Mark H. Lee ,  Thurman B. Carter ,  William A. Blizzard, Jr. ,  Richard M. Ward

发明人： Mark H. Lee ,  Thurman B. Carter ,  William A. Blizzard, Jr. ,  Richard M. Ward

IPC分类号： E21B7/06 ,  E21B10/50 ,  E21B10/60 ,  E21B12/04 ,  E21B23/00 ,  E21B23/01 ,  E21B23/02 ,  E21B29/06 ,  E21B49/06 ,  E21B7/08

CPC分类号： E21B29/06 ,  E21B10/50 ,  E21B10/60 ,  E21B12/04 ,  E21B23/00 ,  E21B23/01 ,  E21B23/02 ,  E21B49/06 ,  E21B7/061

摘要： Wellbore operations (e.g. for milling and/or drilling) are disclosed which require a reduced number of tool trips into a wellbore to create a cut-out pocket or window in a tubular such as casing in the wellbore and, in some aspects, to continue into a formation adjacent a main wellbore forming a lateral wellbore in communication with the main wellbore. Preferably one trip is required. A milling apparatus has been invented with milling apparatus for milling a tubular member and a nose cone releasably connected to the milling apparatus and releasably connectible to a diverter that directs the milling apparatus toward the tubular member. A nose cone for a milling apparatus has been invented with a body member, the body member having a mid portion, a top portion and a lower nose portion, and the top portion releasably securable to the milling apparatus and the lower nose portion releasably securable to a concave of a whipstock. A whipstock has been invented with a body member having an upwardly extending concave portion with a concave surface, and at least a portion of the concave surface contactable by a milling apparatus during a milling procedure covered with armor material.

摘要翻译： 井眼操作（例如用于铣削和/或钻孔）被公开，其需要减少进入井筒的工具数量，以在诸如井筒中的套管中的管状物中产生切口袋或窗口，并且在一些方面中继续 形成邻近主井眼的地层，形成与主井筒相通的侧井筒。 优选需要一次行程。 已经发明了一种用于铣削管状构件的铣削装置和可释放地连接到铣削装置的鼻锥的铣削装置，并且可释放地连接到将铣削装置朝向管状构件引导的转向器。 已经发明了一种用于研磨装置的鼻锥体，其具有主体部件，主体部件具有中间部分，顶部部分和下鼻部部分，并且顶部部分可释放地固定到铣削装置，并且下部鼻部部分可释放地固定到 造斜器的凹面。 已经发明了一种造斜器，其具有具有凹形表面的向上延伸的凹部的主体构件，并且在用铠装材料覆盖的铣削过程期间，凹面的至少一部分由铣削装置可接触。

公开(公告)号：US5727629A

公开(公告)日：1998-03-17

申请号：US590747

申请日：1996-01-24

申请人： William A. Blizzard, Jr. ,  Dale E. Langford

发明人： William A. Blizzard, Jr. ,  Dale E. Langford

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B7/10 ,  E21B10/46 ,  E21B10/60 ,  E21B17/02 ,  E21B29/06

CPC分类号： E21B17/02 ,  E21B10/46 ,  E21B10/60 ,  E21B29/06 ,  E21B7/061 ,  E21B7/10

摘要： A method for milling an opening in a tubular in a wellbore, the method comprising installing a mill guide in the tubular at a desired milling location, inserting milling apparatus through the tubular and through the mill guide so that the milling apparatus contacts the tubular at the desired milling location and contacts and is directed toward the tubular by the mill guide, and milling an opening in the tubular. In one aspect the method includes installing a whipstock in the tubular and disposing the mill guide adjacent the whipstock to protect a concave portion of the whipstock. In one aspect the method includes retrieving the mill guide from the wellbore and in another aspect includes retrieving the whipstock form the wellbore.

摘要翻译： 一种用于研磨井眼中的管状物中的开口的方法，所述方法包括在期望的铣削位置将管道引导件安装在管状件中，将铣削装置插入管状件并通过铣削引导件，使得铣削装置在管 期望的铣削位置和接触件，并通过铣刀引导件朝向管状件，并且铣削管状件中的开口。 在一个方面，该方法包括在管状物中安装造斜器并将磨机引导件邻近造斜器安置以保护造斜器的凹部。 在一个方面，该方法包括从井筒中取出轧制机引导件，另一方面包括从井筒中取出造斜器。

公开(公告)号：US06334487B1

公开(公告)日：2002-01-01

申请号：US09552533

申请日：2000-04-19

申请人： Courtney W. Adkins ,  Thurman B. Caarter ,  John D. Roberts ,  William A. Blizzard, Jr. ,  Richard M. Ward

发明人： Courtney W. Adkins ,  Thurman B. Caarter ,  John D. Roberts ,  William A. Blizzard, Jr. ,  Richard M. Ward

IPC分类号： E21B2900

CPC分类号： E21B21/10 ,  E21B23/006 ,  E21B23/04 ,  E21B29/06 ,  E21B34/10

摘要： A milling system has been invented for milling an opening in a tubular in a tubular string in a wellbore extending down from a surface of the earth, the milling system, in one aspect, has a whipstock connected to an anchor assembly and a mill apparatus releasably connected to the whipstock, the mill apparatus having auto fill apparatus therein. A mill has been invented with a mill body with a top end and a bottom end, a flow bore through the mill body, and an auto fill apparatus in the flow bore. A valve assembly has been invented for selectively controlling fluid flow through a hollow tubular in a string of hollow tubulars in a wellbore extending from a surface of the earth into the earth, the valve assembly in one aspect having positions limited to at rest, circulate, and anchor set positions so that a fluid pressure indicating at the surface indicates only either a pressured up position for anchor setting or a pressured up position for fluid circulation. A milling system has been invented with apparatus for releasably containing an isolated charge of fluid. A float valve for use in wellbore operations has been invented with a valve member having a vent hole for releasing fluid pressure build up beneath the valve member. A fill sub has been invented which uses such a float valve.

摘要翻译： 已经发明了一种铣削系统，用于铣削在从地球表面向下延伸的井筒中的管状管中的开口，在一个方面，铣削系统具有可释放地连接到锚固组件和研磨装置的造斜器 连接到造斜器，其中具有自动填充装置的轧机装置。 已经发明了一种具有顶端和底端的轧机主体，通过轧机主体的流动孔以及流动孔中的自动填充装置。 已经发明了一种阀组件，用于选择性地控制通过从地球表面延伸到地球中的井眼中的一串中空管状体中的中空管状物的流体流动，该阀组件在一个方面具有局限于静止，循环， 和锚固位置，使得在表面处指示的流体压力仅表示用于锚定位的加压位置或用于流体循环的加压位置。 已经发明了具有用于可释放地容纳分离的流体的装置的装置的铣削系统。 已经发明了一种用于井眼操作的浮阀，其具有用于释放在阀构件下方形成的液体压力的通气孔的阀构件。 已经发明了使用这种浮阀的填充子。

公开(公告)号：US6155349A

公开(公告)日：2000-12-05

申请号：US33970

申请日：1998-03-03

申请人： Robert Robertson ,  Thurman B. Carter ,  Timothy Wilson ,  William A. Blizzard, Jr. ,  Guy L. McClung, III

发明人： Robert Robertson ,  Thurman B. Carter ,  Timothy Wilson ,  William A. Blizzard, Jr. ,  Guy L. McClung, III

IPC分类号： E21B7/06 ,  E21B10/46 ,  E21B10/50 ,  E21B17/20 ,  E21B21/10 ,  E21B29/06 ,  E21B29/10 ,  E21B43/11

CPC分类号： E21B7/061 ,  E21B10/46 ,  E21B10/50 ,  E21B17/20 ,  E21B21/10 ,  E21B29/06 ,  E21B29/10

摘要： A wellbore mill has been invented having a flexible main body, and at least one milling apparatus secured on the flexible main body. A wellbore mill has been invented having a main body with a top end and a bottom end, at least one milling structure on the mill body, and a stinger projecting down from and releasably secured to the bottom end of the mill body. Methods have been invented for milling wellbore tubulars with such mills. A method for eliminating tubular offset in a wellbore has been invented, and the method includes positioning a wellbore mill in a tubular offset of a tubular string in a wellbore, the wellbore mill comprising a flexible main body and at least one milling apparatus secured on the flexible main body, and rotating the wellbore mill to mill at least part of the tubular offset.

摘要翻译： 已经发明了一种具有柔性主体的井眼磨机，以及固定在柔性主体上的至少一个研磨装置。 已经发明了一种井眼磨机，其具有顶端和底端的主体，在磨机主体上的至少一个铣削结构，以及从磨机主体的底端向下突出并可释放地固定的喷枪。 已经发明了用这种磨机铣削井眼管的方法。 已经发明了一种用于消除井眼中的管状偏移的方法，并且该方法包括将井眼磨机定位在井筒中的管状柱体的管状偏移中，该井眼磨机包括柔性主体和至少一个铣削装置， 柔性主体，并旋转井眼磨机以磨碎管状偏移的至少一部分。

公开(公告)号：US6056056A

公开(公告)日：2000-05-02

申请号：US8614

申请日：1998-01-18

申请人： Douglas G. Durst ,  Robert E. Robertson ,  Thurman B. Carter ,  Paul J. Johantges ,  Charles W. Pleasants ,  William A. Blizzard, Jr. ,  Dale E. Langford ,  Guy L. McClung, III

发明人： Douglas G. Durst ,  Robert E. Robertson ,  Thurman B. Carter ,  Paul J. Johantges ,  Charles W. Pleasants ,  William A. Blizzard, Jr. ,  Dale E. Langford ,  Guy L. McClung, III

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B29/00

CPC分类号： E21B7/061 ,  E21B29/00

摘要： Wellbore apparatus has been invented that includes a whipstock with a top and a bottom, the whipstock disposed in a wellbore extending down from an earth surface into the earth, the wellbore having an inner surface, a mill guide with a body having an upper end, a lower end, and a channel therethrough from the upper end to the lower end, and a portion of the lower end of the mill guide disposed between and held between the inner surface of the wellbore and an outer surface of the top of the whipstock.A method for stabilizing a mill guide in a wellbore extending from an earth surface into the earth has been invented, the wellbore having an inner surface, the method including setting a whipstock at a location in the wellbore, the whipstock having a top and a bottom, moving a mill guide down into the wellbore to contact the whipstock, the mill guide having a body with an upper end, a lower end, and a channel therethrough from the upper end to the lower end, and positioning the mill guide so that a portion of the lower end of the mill guide is stabilizinglyconnected to and/or received and held between the inner surface of the wellbore and an outer surface of the top of the whipstock.A method has been invented for milling within a whipstock set in a wellbore extending from an earth surface down into the earth, the whipstock having a body with a top and a bottom, the method including introducing a mill guide into the wellbore above the whipstock, moving the mill guide into stabilizing contact with the whipstock, the mill guide having a top and a bottom and a channel therethrough from top to bottom, guiding a mill with the mill guide to mill down into the whipstock and through at least a longitudinal portion thereof, the mill having at least a portion thereof in contact with the mill guide while milling the at least a longitudinal portion of the whipstock.

摘要翻译： 已经发明了一种井筒装置，其包括具有顶部和底部的造斜器，所述造斜器设置在从地表面向地下延伸的井眼中，所述井筒具有内表面，具有主体的磨机引导件具有上端， 下端和从上端到下端的通道，以及设置在井眼的内表面和造斜器顶部的外表面之间并保持在其中的磨机引导件的下端的一部分。 已经发明了一种用于稳定从地球表面延伸到地球的井眼中的磨机引导件的方法，井筒具有内表面，该方法包括在造井机的一个位置设置造斜器，造斜器具有顶部和底部 将轧机导向件移动到井筒中以接触造斜器，该磨机引导件具有主体，该主体具有从上端到下端的上端，下端和通道，并且定位磨机引导件，使得 磨机引导件的下端的部分稳定地连接到和/或接收并保持在井眼的内表面和造斜器的顶部的外表面之间。 已经发明了一种用于在从地球表面向下延伸到地球的井筒中的造斜器内铣削的方法，所述造斜器具有具有顶部和底部的主体，所述方法包括将磨机引导件引导到造斜器上方的井眼中， 将磨机引导件移动到与造斜器稳定接触的状态下，磨机引导件具有顶部和底部以及从顶部到底部穿过的通道，将磨机与磨机引导件一起磨制成造斜器并且至少通过其纵向部分 ，所述磨机具有至少一部分与铣刀引导件接触的同时铣削造斜器的至少纵向部分。

公开(公告)号：US6024168A

公开(公告)日：2000-02-15

申请号：US962162

申请日：1997-10-31

申请人： Mark D. Kuck ,  William A. Blizzard, Jr. ,  Thurman B. Carter ,  Guy L. McClung, III

发明人： Mark D. Kuck ,  William A. Blizzard, Jr. ,  Thurman B. Carter ,  Guy L. McClung, III

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B7/10 ,  E21B10/04 ,  E21B10/46 ,  E21B10/50 ,  E21B10/60 ,  E21B17/02 ,  E21B21/10 ,  E21B29/06 ,  E21B23/00

CPC分类号： E21B7/061 ,  E21B10/04 ,  E21B10/46 ,  E21B10/50 ,  E21B10/60 ,  E21B17/02 ,  E21B21/10 ,  E21B29/06 ,  E21B7/10

摘要： A wellbore mill has been invented that has a body having a top and a bottom and a first fluid flow channel extending longitudinally therethrough from top to bottom, the first fluid flow channel having an upper end and a lower end, the lower end of the first fluid flow channel having an opening sized for receiving a core of material from a tubular member milled by the mill, and at least a portion of the first fluid flow channel offset from the remainder thereof to facilitate separation of the core from the tubular member. A wellbore milling method for milling an opening in a selected tubular of a tubular string in a wellbore has been invented that includes installing a mill on a working string into the wellbore at a selected desired point for milling the opening in the tubular, the mill comprising a body having a top and a bottom and a first fluid flow channel extending longitudinally therethrough from top to bottom, the first fluid flow channel having an upper end and a lower end, the lower end of the first fluid flow channel having an opening sized for receiving a core of material from a tubular member milled by the mill, and at least a portion of the first fluid flow channel offset from the remainder thereof to facilitate separation of the core from the tubular member, and rotating the mill to mill the selected tubular, create the core by thus milling the tubular and separating the core from the tubular being milled.

摘要翻译： 已经发明了一种井眼磨机，其具有具有顶部和底部的主体以及从顶部至底部纵向延伸穿过的第一流体流动通道，第一流体流动通道具有上端和下端，第一流体通道的下端 流体流动通道具有开口，其尺寸设置成用于从由研磨机研磨的管状构件接收材料芯，以及从其余部分偏移的第一流体流动通道的至少一部分，以便于将芯与管状部件分离。 已经发明了一种用于研磨在井眼中的管状柱的选定管状体中的开口的井筒铣削方法，其包括在选定的所需点将工作柱上的研磨机安装在井眼中，用于铣削管中的开口，磨机包括 具有顶部和底部的主体以及从顶部至底部纵向延伸穿过的第一流体流动通道，所述第一流体流动通道具有上端和下端，所述第一流体流动通道的下端具有开口尺寸， 从由研磨机研磨的管状构件接收材料芯，以及从其余部分偏移的第一流体流动通道的至少一部分，以便于将芯与管状部件分离，并且旋转研磨机以将所选择的管 通过如此研磨管并将芯与被研磨的管状物分离来制造芯。

公开(公告)号：US5803176A

公开(公告)日：1998-09-08

申请号：US683611

申请日：1996-07-15

申请人： William A. Blizzard, Jr. ,  Dale E. Langford

发明人： William A. Blizzard, Jr. ,  Dale E. Langford

IPC分类号： E21B7/06 ,  E21B7/10 ,  E21B10/46 ,  E21B10/50 ,  E21B10/60 ,  E21B17/02 ,  E21B29/06

CPC分类号： E21B10/46 ,  E21B10/50 ,  E21B10/60 ,  E21B17/02 ,  E21B29/06 ,  E21B7/061 ,  E21B7/10

摘要： A method for milling an opening in a tubular in a wellbore, the method comprising installing a mill guide in the tubular at a desired milling location, inserting milling apparatus through the tubular and through the mill guide so that the milling apparatus contacts the tubular at the desired milling location and contacts and is directed toward the tubular by the mill guide, and milling an opening in the tubular. In one aspect the method includes installing a whipstock in the tubular and disposing the mill guide adjacent the whipstock to protect a concave portion of the whipstock. In one aspect the method includes retrieving the mill guide from the wellbore and in another aspect includes retrieving the whipstock from the wellbore.

摘要翻译： 一种用于研磨井眼中的管状体中的开口的方法，所述方法包括在期望的铣削位置将管道引导件安装在管状件中，将铣削装置通过管状物并通过铣削引导件，使得铣削装置在管 期望的铣削位置和接触件，并通过铣刀引导件朝向管状件，并且铣削管状件中的开口。 在一个方面，该方法包括在管状物中安装造斜器并将磨机引导件邻近造斜器安置以保护造斜器的凹部。 在一个方面，该方法包括从井筒取回轧制机引导件，另一方面包括从井筒中取回造斜器。