公开(公告)号：US20080106433A1

公开(公告)日：2008-05-08

申请号：US11873040

申请日：2007-10-16

申请人： RAGHU MADHAVAN ,  Bruce Boyle ,  Brian Clark ,  Stacy Johnson ,  David Santoso ,  Lise Hvatum

发明人： RAGHU MADHAVAN ,  Bruce Boyle ,  Brian Clark ,  Stacy Johnson ,  David Santoso ,  Lise Hvatum

IPC分类号： G01V3/00

CPC分类号： E21B47/122 ,  E21B17/003 ,  E21B17/028 ,  E21B43/103 ,  G01V11/002 ,  Y10S439/95

摘要： A wired drill pipe segment includes a tubular body having an axial bore, a box end disposed at a first end of the tubular body having a first core material disposed in the box end, a pin end disposed at a second end of the tubular body having a second core material disposed in the pin end, a first coil winding wound around at least a portion of the first core material and a second coil winding wound around at least a portion of the first core material, a third coil winding wound around at least a portion of the second core material and a fourth coil winding wound around at least a portion of the second core material, a first conductor connected to the first coil winding and the third coil winding and extending through the tubular body, and a second conductor connected to the second coil winding and the fourth coil winding and extending through the tubular body.

摘要翻译： 有线钻管段包括具有轴向孔的管状主体，设置在管状主体的第一端的箱体端部，其具有设置在箱体端部的第一芯材料，设置在管状主体的第二端处的销端部， 设置在所述销端部的第二芯材料，缠绕在所述第一芯材的至少一部分上的第一线圈绕组和缠绕在所述第一芯材的至少一部分上的第二线圈绕组， 所述第二芯材的一部分和围绕所述第二芯材的至少一部分缠绕的第四线圈绕组，连接到所述第一线圈绕组和所述第三线圈绕组并延伸穿过所述管状体的第一导体，以及连接到所述第二芯材的第二导体 到第二线圈绕组和第四线圈绕组并延伸穿过管状体。

公开(公告)号：US20060225926A1

公开(公告)日：2006-10-12

申请号：US10907419

申请日：2005-03-31

申请人： RAGHU MADHAVAN ,  BRUCE BOYLE ,  BRIAN CLARK

发明人： RAGHU MADHAVAN ,  BRUCE BOYLE ,  BRIAN CLARK

IPC分类号： E21B17/00

CPC分类号： E21B43/103 ,  B21D39/04 ,  E21B17/003 ,  E21B17/028 ,  E21B43/106 ,  E21B43/108

摘要： An expandable tubular sleeve having utility for lining a downhole tubular member includes a tubular body having a portion that is predisposed to initiate expansion thereof under the application of internal fluid pressure. The predisposed portion of the body may be a plastically-deformed portion formed, e.g., by application of mechanical force to a wall of the body. The predisposed portion of the body may be defined by a portion of the body having reduced wall thickness. The reduced wall thickness may be achieved, e.g., by reinforcing the wall thickness everywhere except the predisposed portion. The predisposed portion of the body may be formed by modifying the material properties of the body, e.g., by localized heat treatment. The sleeve and related apparatuses and methods are useful for securing and protecting a cable having one or more insulated conductive wires for transmission of signals between locations downhole and at the surface.

摘要翻译： 具有用于衬套井下管状构件的可膨胀管状套管包括管状体，其具有在内部流体压力的应用下倾向于引发其膨胀的部分。 身体的易位部分可以是例如通过向身体的壁施加机械力而形成的塑性变形部分。 主体的易位部分可以由具有减小的壁厚的主体的一部分限定。 减小的壁厚可以例如通过增强除了预定部分之外的任何地方的壁厚来实现。 可以通过例如通过局部热处理来改变身体的材料性质来形成身体的易位部分。 套筒和相关装置和方法可用于固定和保护具有一个或多个绝缘导线的电缆，用于在井下和地面之间的位置之间传输信号。

公开(公告)号：US20050087368A1

公开(公告)日：2005-04-28

申请号：US10605730

申请日：2003-10-22

申请人： BRUCE BOYLE ,  NICOLAS PACAULT ,  JEAN-MICHEL HACHE ,  REMI HUTIN ,  RAGHU MADHAVAN ,  JACQUES JUNDT

发明人： BRUCE BOYLE ,  NICOLAS PACAULT ,  JEAN-MICHEL HACHE ,  REMI HUTIN ,  RAGHU MADHAVAN ,  JACQUES JUNDT

IPC分类号： E21B47/12 ,  E21B17/02 ,  E21B47/00 ,  E21B7/00

CPC分类号： E21B47/12 ,  E21B17/023 ,  E21B17/028 ,  E21B47/122

摘要： A cabled communication link for a drill string includes spaced apart adapter subs within the drill string and a cable connecting the adapter subs for communication of a signal therebetween. The cabled communication link may be drill pipe joints are interconnected within the drill string between adapter subs to form a piped communication link, whereby the cabled communication link establishes a pathway to the piped communication link for transmitting a signal through the drill string. The cabled communication link may also be in a non-wired section of the drill string is disposed between adapter subs, whereby the cabled communication link establishes a pathway for transmitting a signal through the non-wired section of the drill string. Inductive couplings are preferably used for communication across the adapter subs and wired drill pipe joints. Another aspect of the cabled communication employs wireless transceivers at or near the surface of the wellbore.

摘要翻译： 用于钻柱的电缆通信链路包括在钻柱内的间隔开的适配器，以及连接适配器接头以用于在其间进行信号通信的电缆。 电缆通信链路可以是钻杆接头在适配器接头之间的钻柱内互连以形成管道通信链路，由此有线通信链路建立到管道通信链路的路径，用于通过钻柱发送信号。 电缆通信链路也可以在钻柱的非有线部分中设置在适配器接头之间，由此有线通信链路建立用于通过钻柱的非有线部分发送信号的路径。 电感耦合器最好用于通过适配器接头和有线钻杆接头进行通信。 电缆通信的另一方面在井眼表面处或附近采用无线收发器。

公开(公告)号：US20100007519A1

公开(公告)日：2010-01-14

申请号：US12172484

申请日：2008-07-14

申请人： RAGHU MADHAVAN ,  Bruce W. Boyle ,  Brian Clark

发明人： RAGHU MADHAVAN ,  Bruce W. Boyle ,  Brian Clark

IPC分类号： G01V3/00

CPC分类号： H02G3/0481 ,  E21B17/003 ,  G01V3/18 ,  G01V11/002 ,  H01B13/00 ,  H01R43/00 ,  H02G3/0437 ,  H02G9/10 ,  Y10T29/49117 ,  Y10T29/49119

摘要： An expandable tubular sleeve having utility for lining a downhole tubular member includes a tubular body having a portion that is predisposed to initiate expansion thereof under the application of internal fluid pressure. The predisposed portion of the body may be a plastically-deformed portion formed, e.g., by application of mechanical force to a wall of the body. The predisposed portion of the body may be defined by a portion of the body having reduced wall thickness. The reduced wall thickness may be achieved, e.g., by reinforcing the wall thickness everywhere except the predisposed portion. The predisposed portion of the body may be formed by modifying the material properties of the body, e.g., by localized heat treatment. The sleeve and related apparatuses and methods are useful for securing and protecting a cable having one or more insulated conductive wires for transmission of signals between locations downhole and at the surface.

摘要翻译： 具有用于衬套井下管状构件的可膨胀管状套管包括管状体，其具有在内部流体压力的应用下倾向于引发其膨胀的部分。 身体的易位部分可以是例如通过向身体的壁施加机械力而形成的塑性变形部分。 主体的易位部分可以由具有减小的壁厚的主体的一部分限定。 减小的壁厚可以例如通过增强除了预定部分之外的任何地方的壁厚来实现。 可以通过例如通过局部热处理来改变身体的材料性质来形成身体的易位部分。 套筒和相关装置和方法可用于固定和保护具有一个或多个绝缘导线的电缆，用于在井下和地面之间的位置之间传输信号。

公开(公告)号：US20110023587A1

公开(公告)日：2011-02-03

申请号：US12534151

申请日：2009-08-02

申请人： RAGHU MADHAVAN ,  YU HATORI ,  MAMI NISHIDA ,  SOPHIE NAZIK GODEFROY ,  MICHAEL STANGELAND ,  GO FUJISAWA

发明人： RAGHU MADHAVAN ,  YU HATORI ,  MAMI NISHIDA ,  SOPHIE NAZIK GODEFROY ,  MICHAEL STANGELAND ,  GO FUJISAWA

IPC分类号： G01N11/16

CPC分类号： E21B47/10 ,  G01N11/16 ,  G01N33/2823

摘要： Vibrating wire viscometers are described. Some example vibrating wire viscometer housings include a flowline through the housing to expose a first wire to a downhole fluid, a cavity in the housing to hold a magnet and to conduct one or more additional wires from the flowline to a signal generator, first and second electrically conductive posts mechanically coupled to the housing to hold the first wire in tension within the flowline, and a seal mechanically coupled to the housing to prevent access to the magnet by the downhole fluid.

摘要翻译： 描述了振动丝粘度计。 一些示例性振动丝粘度计壳体包括通过壳体的流线，以将第一线暴露于井下流体，壳体中的空腔以保持磁体并且将一条或多条额外的导线从流线引导到信号发生器，第一和第二 导电柱机械联接到壳体以将第一线材保持在流线内的张力，以及机械地联接到壳体的密封件，以防止井下流体进入磁体。

公开(公告)号：US20100052941A1

公开(公告)日：2010-03-04

申请号：US12202722

申请日：2008-09-02

申请人： RAGHU MADHAVAN ,  FREDERIC LATRILLE

发明人： RAGHU MADHAVAN ,  FREDERIC LATRILLE

IPC分类号： G01V3/34 ,  H01F38/14 ,  H02K11/00

CPC分类号： E21B47/12 ,  E21B4/02 ,  G01V11/002 ,  H01F38/18 ,  H01F2038/143

摘要： A rotary coupler includes a first member having an internal surface, a first inductor positioned on the internal surface, a second member, and a second inductor carried on a portion of the second member and positioned internal of the first inductor, wherein one of the inductors rotates relative to the other inductor.

摘要翻译： 旋转耦合器包括具有内表面的第一构件，位于内表面上的第一电感器，第二构件和承载在第二构件的一部分上并位于第一电感器内部的第二电感器，其中电感器之一 相对于另一个电感器旋转。

公开(公告)号：US20110252879A1

公开(公告)日：2011-10-20

申请号：US12763218

申请日：2010-04-20

申请人： RAGHU MADHAVAN ,  MICHAEL STANGELAND

发明人： RAGHU MADHAVAN ,  MICHAEL STANGELAND

IPC分类号： E21B47/06

CPC分类号： E21B47/065 ,  E21B49/10

摘要： Apparatus for determining downhole fluid temperatures are described. An example apparatus for measuring a temperature of a downhole fluid includes a sensing element for measuring a physical or chemical property of the downhole fluid, and a plurality of electrical connections to enable the sensing element to measure the chemical or physical property and provide an output signal representative of the chemical or physical property, wherein at least one of the electrical connections is configured to function as a thermocouple to sense a temperature of the downhole fluid.

摘要翻译： 描述了用于确定井下流体温度的装置。 用于测量井下流体的温度的示例性装置包括用于测量井下流体的物理或化学特性的感测元件和多个电连接，以使感测元件能够测量化学或物理性质并提供输出信号 代表化学或物理性质，其中至少一个电连接被配置为用作热电偶以感测井下流体的温度。