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公开(公告)号：EP1719874B1
公开(公告)日：2008-09-10
申请号：EP06251995.4
申请日：2006-04-10
发明人： Gano, John C.
IPC分类号： E21B43/10
CPC分类号： E21B43/105
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公开(公告)号：EP1719874A1
公开(公告)日：2006-11-08
申请号：EP06251995.4
申请日：2006-04-10
发明人： Gano, John C.
IPC分类号： E21B43/10
CPC分类号： E21B43/105
摘要： The invention relates to apparatus and methods for radially expanding tubulars, such as tubing, casing and sand-control screen assemblies in a subterranean oil or gas well, and more specifically, to a variable diameter expansion tool for expanding downhole tubulars to varying diameters. The apparatus and methods serve to radially expand a tubular, such as pipe, tubing, screen or screen assembly, deployed in a subterranean well by moving an expansion tool axially through the well. An automatically infinitely variable-diameter expansion cone tool 10 is provided. A variable-diameter cone 56 is provided, movable between an expanded position and a retracted position. The cone 56 is enlarged to its expanded position and advanced through expandable components until a restriction is reached. At the restriction, the variable-diameter cone 56 automatically retracts enough to allow the tool to continue advancing through the wellbore. When the restriction is past, the variable-diameter cone 56 enlarges again to its expanded position.
摘要翻译： 本发明涉及用于在地下油井或气井中径向膨胀管状物例如管道，套管和防砂筛网组件的装置和方法，更具体地说，涉及用于将井下管件扩展成不同直径的可变直径膨胀工具。 该装置和方法用于通过使膨胀工具轴向移动通过井而径向扩张管状物，例如管，管，筛或筛组件，其部署在地下井中。 提供了一种自动无级变径膨胀锥形工具10。 可变直径锥体56设置成可在扩张位置和缩回位置之间移动。 锥体56扩大到其扩张位置并且通过可膨胀部件前进直到达到限制。 在限制下，可变直径锥体56自动地缩回足以允许工具继续前进通过井眼。 当限制过去时，可变直径锥体56再次扩大到其展开位置。
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公开(公告)号：EP1533467A2
公开(公告)日：2005-05-25
申请号：EP05004298.5
申请日：1995-08-24
发明人： Longbotton, James R. , Cox, Don C. , Gano, John C. , Welch, William R. , White, Pat M. , Nivens, Harold Wayne , Jacquier, Richard Charles , Holbrook, Paul David , Frreman, Tommie Austin , Mills, David H.
CPC分类号： E21B29/06 , E21B7/061 , E21B17/00 , E21B17/10 , E21B17/1007 , E21B17/22 , E21B23/00 , E21B23/002 , E21B23/02 , E21B23/03 , E21B33/1293 , E21B33/1295 , E21B41/0042 , E21B43/10 , F16L7/00 , F16L9/16
摘要： Multilateral wells and improved multilateral well structures are made by setting a diverter (332) at a prescribed position and a prescribed orientation in a main well flow conductor (120) located within a main wellbore (110), boring through a sidewall of the main well flow conductor (120) and into a material (112) surrounding the main well flow conductor (120), the boring creating a window (324) having a particular shape in the sidewall, the orientation of the diverter (332) determining a lateral position of the window in the main well flow conductor (120), a lateral wellbore (150) thereby being formed in the material and extending from the main wellbore (110), and lining the lateral wellbore (150) with a liner (340), the liner having an interface end (342), the interface end being adapted to contact a periphery of the window (342) in the sidewall, and cementing the liner (340) in place within the lateral wellbore (150). The step of cementing creates a pressure-bearing seal between the periphery of the window and the interface end (342) of the liner (340). The method allows multiple lateral wellbores to be joined to the main wellbore and provides for connectivity among main and lateral wellbores, pressure-bearing sealing of joints to allow selective isolation of one or more wellbores or portions thereof and subsequent wellbore access for rework or other purposes.
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公开(公告)号：EP1505248A3
公开(公告)日：2005-02-23
申请号：EP04077776.5
申请日：2002-02-20
发明人： Restarick, Henry L. , Gano, John C. , Laursen, Patrick E. , Connell, Micheal L. , Maerefat, Nicida
CPC分类号： E21B17/028 , E21B17/04 , E21B17/206
摘要： A method of interconnecting a well tool assembly (18) in a continuous tubing string (12,16), which method comprises providing the tubing string having at least one line (48) extending therethrough; and interconnecting the well tool assembly in the tubing string, the line extending through the tool assembly between a respective connector (28,30) at each end of the tool assembly.
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公开(公告)号：EP1428974A8
公开(公告)日：2004-10-20
申请号：EP04075738.7
申请日：1999-05-12
IPC分类号： E21B33/10 , E21B7/08 , E21B29/06 , E21B23/06 , E21B23/04 , E21B33/12 , E21B33/127 , E21B43/10 , E21B7/06
CPC分类号： E21B43/103 , E21B7/061 , E21B23/06 , E21B29/06 , E21B33/12 , E21B33/1208 , E21B33/1212 , E21B33/127 , E21B41/0042 , E21B43/106
摘要： A method of interconnecting first and second wellbores. The method comprises the steps of: forming a radially enlarged cavity (20) in the first wellbore (12) below casing (14) lining the first wellbore (20); positioning a wellbore connector (22) within the cavity (20), the wellbore connector (22) being configurable in expanded and contracted configurations; and expanding the wellbore connector (22) within the cavity (20).
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公开(公告)号：EP1314851A2
公开(公告)日：2003-05-28
申请号：EP03075491.5
申请日：1997-07-14
摘要： Apparatus for completing a subterranean wellbore and associated methods of using provide relatively uncomplicated and convenient access to a parent wellbore lower portion from a lateral wellbore liner which extends into the parent wellbore above the lower portion. The apparatus is utilized to form an opening through a portion of the liner which overlies the parent wellbore lower portion, thereby providing access thereto. In a preferred embodiment, the apparatus includes a milling guide having an axially extending guide profile formed therein, which guide profile is capable of directing a mill toward the liner portion to form the opening. The milling guide is capable of being anchored in the liner to thereby fix its axial and rotational alignment relative to the liner portion.
摘要翻译： 一种用于完成一地下井眼中，并使用提供从侧衬套井眼延伸到所述下部上方的母井到母井孔下部相对不复杂的和方便的访问的相关方法。 该装置被用于形成上，通过该覆盖在母井孔下部，从而向其提供访问衬里的一部分开口。 在优选实施例中，该装置包括：具有在形成于其中的轴向延伸导引轮廓，该引导轮廓是能够指导磨机朝向衬垫部分，以形成所述开口的铣削导向。 铣削导向器能够被锚定在衬垫，从而固定其轴向和旋转对准相对于所述衬套部分。
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公开(公告)号：EP1233144A2
公开(公告)日：2002-08-21
申请号：EP02076706.7
申请日：1995-08-24
IPC分类号： E21B23/02
CPC分类号： E21B17/1085 , E21B7/061 , E21B17/10 , E21B17/1007 , E21B17/22 , E21B23/00 , E21B23/002 , E21B23/02 , E21B23/03 , E21B33/1295 , E21B41/0042 , F16L7/00 , F16L9/16
摘要： A downhole diverter (130) is decentralized by sliding first (116) and second (118) coaxial tubes relatively, one tube (118) having a conical ramp (115) thereon and the other (116) having a shoulder (119) thereon and a decentralizing ring (112,114) between the shoulder (119) and the ramp (115) so that, as the ring is urged by the shoulder (119) onto the ramp (115), it expands eccentrically to decentralize the two tubes, thereby decentralizing the diverter (130) to which they are attached. A centralizing guide, and a downhole deployable locating and orienting sub-system are also described.
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9.发明公开
公开(公告)号：EP0846836A3
公开(公告)日：2002-01-23
申请号：EP97309842.9
申请日：1997-12-05
发明人： Gano, John C. , White, Pat M.
摘要： A tubular anchor assembly (22) coaxially and releasably securable in a subterranean well bore casing, comprising: a tubular inner mandrel (88); a tubular slip carrier (98,132) coaxially circumscribing the inner mandrel in a radially outwardly spaced relationship therewith, the slip carrier having a circumferentially spaced series of side wall slip windows (100, 102, 136, 138) therein and outwardly bounding an annular space between the inner mandrel and the slip carrier; a circumferentially spaced series of slips (40,42) carried in the annular space for radial movement through the slip windows between retracted and extended positions; and a circumferentially spaced series of arcuate, elongated spring members (108) disposed in the annular space and resiliently biasing the slips toward their retracted positions, the spring members being interdigitated with the slips and having longitudinally central portions secured to the slip carrier, with each slip being engaged by end portions of two spring members on circumferentially opposite sides thereof.
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公开(公告)号：EP0819824A3
公开(公告)日：2000-02-02
申请号：EP97305185.7
申请日：1997-07-14
IPC分类号： E21B29/06
摘要： A method of completing a subterranean well to provide access to a portion (38) of a parent wellbore (12) which has been closed off by a lateral wellbore liner (28). The method includes the steps of depositing cement (50) in the lateral wellbore liner (28) and then drilling through the cement (50) and liner (28). The cement (50) provides lateral support for a cutting tool (56) while it is milling through the liner (28).
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