Current-directing shield apparatus for use with transverse magnetic dipole antennas
    1.
    发明授权
    Current-directing shield apparatus for use with transverse magnetic dipole antennas 有权
    用于横向磁偶极天线的导流屏蔽装置

    公开(公告)号:US06667620B2

    公开(公告)日:2003-12-23

    申请号:US10113265

    申请日:2002-03-29

    IPC分类号: G01V310

    CPC分类号: G01V3/28

    摘要: Shield apparatus are provided for use with logging instruments equipped with transverse magnetic dipole antennas. Flexible dielectric strips and dielectric cylindrical bodies are implemented with conductive elements in various patterns to form Faraday shield structures. The shields provide an extended conductive surface to the instrument support member and redirect axial currents along the borehole, protecting the underlying antennas from the undesired effects of these currents.

    摘要翻译: 屏蔽装置用于配备横向磁偶极子天线的测井仪器。 柔性介质条和电介质圆柱体以各种图案的导电元件实现,以形成法拉第屏蔽结构。 屏蔽件向仪器支撑构件提供延伸的导电表面并且重新沿钻孔的轴向电流,保护下面的天线不受这些电流的不期望的影响。

    Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion
    2.
    发明授权
    Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion 有权
    在存在入侵时确定各向同性和各向异性地层电阻率的装置和方法

    公开(公告)号:US07091877B2

    公开(公告)日:2006-08-15

    申请号:US10707813

    申请日:2004-01-14

    IPC分类号: G01V3/00

    CPC分类号: G01V3/28

    摘要: A logging tool includes a tool body; a simple transmitter comprising a single antenna disposed on the tool body; four simple receivers, each comprising a single antenna, disposed on the tool body and spaced apart from the simple transmitter to form four arrays; and an electronic module for controlling operation of the four arrays, wherein the simple transmitter is configured to generate a magnetic field having a transverse component, wherein each of the four simple receivers is sensitive to the magnetic field generated by the simple transmitter, and at least one of the four simple receivers is sensitive to the transverse component of the magnetic field generated by the simple transmitter, and wherein the four arrays are configured to provide measurements at at least three depths of investigation.

    摘要翻译: 测井工具包括工具体; 简单的发射机,包括设置在所述工具主体上的单个天线; 四个简单接收器,每个包括单个天线,设置在工具主体上并与简单发射器间隔开以形成四个阵列; 以及用于控制四个阵列的操作的电子模块,其中简单发射器被配置为产生具有横向分量的磁场,其中四个简单接收机中的每一个对由简单发射机产生的磁场敏感,并且至少 四个简单接收器之一对由简单发射器产生的磁场的横向分量敏感,并且其中四个阵列被配置为在至少三个调查深度提供测量。

    Apparatus and methods for pressure compensated contact with the borehole wall
    3.
    发明授权
    Apparatus and methods for pressure compensated contact with the borehole wall 失效
    用于压力补偿与钻孔壁接触的装置和方法

    公开(公告)号:US06997258B2

    公开(公告)日:2006-02-14

    申请号:US10605200

    申请日:2003-09-15

    IPC分类号: E21B47/00 E21B49/10

    CPC分类号: G01V11/005

    摘要: A well logging tool includes a housing; at least one piston moveably disposed on the housing; at least one sensor disposed on the at least one piston; a pressure compensation system coupled to the at least one piston such that a pressure at a back side of the at least one piston is substantially identical to a pressure outside the well logging tool; and a piston deployment mechanism for deploying the at least one piston. A method for well logging using a logging tool having at least one piston and a pressure compensating system, wherein the at least one piston includes at least one sensor, the method includes disposing the well logging tool in a borehole; deploying the at least one piston to establish a contact between the at least one piston and a wall of the borehole; and measuring a formation property using the at least one sensor.

    摘要翻译: 测井工具包括一个壳体; 可移动地设置在所述壳体上的至少一个活塞; 设置在所述至少一个活塞上的至少一个传感器; 压力补偿系统,其耦合到所述至少一个活塞,使得所述至少一个活塞的后侧处的压力基本上与所述测井工具外部的压力相同; 以及用于展开所述至少一个活塞的活塞展开机构。 一种使用具有至少一个活塞和压力补偿系统的测井工具进行测井的方法,其中所述至少一个活塞包括至少一个传感器,所述方法包括将测井仪器设置在钻孔中; 展开所述至少一个活塞以在所述至少一个活塞和所述钻孔的壁之间建立接触; 以及使用所述至少一个传感器测量形成特性。

    Wireless transfer of power and data between a mother wellbore and a lateral wellbore
    5.
    发明授权
    Wireless transfer of power and data between a mother wellbore and a lateral wellbore 有权
    电力和数据之间的无线传输在母井井眼和侧井眼之间

    公开(公告)号:US08469084B2

    公开(公告)日:2013-06-25

    申请号:US12789613

    申请日:2010-05-28

    IPC分类号: E21B17/003

    摘要: A technique enables wireless communication of signals in a well. The technique is employed for communication of power signals and/or data signals between a mother wellbore and at least one lateral wellbore. A first wireless device is positioned in a mother wellbore proximate a lateral wellbore, and a second wireless device is positioned in the lateral wellbore. The power and/or data signal is transferred wirelessly between the first and second wireless devices via magnetic fields. A plurality of the first and second wireless devices may be employed in cooperating pairs to enable communication between the mother wellbore and a plurality of lateral wellbores.

    摘要翻译: 一种技术能够在井中进行信号的无线通信。 该技术用于在母井筒和至少一个侧井筒之间的功率信号和/或数据信号的通信。 第一无线设备位于靠近侧井眼的母井壁中,并且第二无线设备定位在侧井眼中。 功率和/或数据信号通过磁场在第一和第二无线设备之间无线地传送。 可以在协作对中采用多个第一和第二无线设备,以实现母井与多个侧井筒之间的通信。

    TRIGGERING MECHANISM DISCRIMINATED BY LENGTH DIFFERENCE
    6.
    发明申请
    TRIGGERING MECHANISM DISCRIMINATED BY LENGTH DIFFERENCE 有权
    由长期差异分析的触发机制

    公开(公告)号:US20100212911A1

    公开(公告)日:2010-08-26

    申请号:US12390822

    申请日:2009-02-23

    IPC分类号: E21B34/14 E21B34/06

    摘要: A downhole trigger mechanism and method for using the same are provided. The downhole trigger mechanism can include at least two contact points spaced a longitudinal distance from one another. The trigger mechanism can be actuated when the contact points of the trigger mechanism are simultaneously contacted by at least two contact points of an actuator. The contact points of the actuator can be spaced a longitudinal distance from one another.

    摘要翻译: 提供了一种井下触发机构及其使用方法。 井下触发机构可以包括彼此间隔开的纵向距离的至少两个接触点。 当触发机构的接触点同时由致动器的两个接触点接触时,触发机构可被致动。 致动器的接触点可以彼此间隔开一个纵向距离。

    Co-located antennas
    7.
    发明授权
    Co-located antennas 有权
    同轴天线

    公开(公告)号:US07286091B2

    公开(公告)日:2007-10-23

    申请号:US11256226

    申请日:2005-10-21

    IPC分类号: H01Q1/04 G01V3/28

    摘要: Techniques for implementing antenna configurations with substantially co-located axes are disclosed. A method for constructing co-located antennas includes winding a first antenna on a support, the first antenna having a first magnetic dipole in a first orientation; and winding a second antenna on the support through a first set of openings in the support, the second antenna having a second magnetic dipole in a second orientation, wherein the first orientation is different from the second orientation, and wherein a center of the first magnetic dipole substantially co-locates with a center of the second magnetic dipole.

    摘要翻译: 公开了用于实现具有基本上同位置的轴的天线配置的技术。 用于构造同位置天线的方法包括:将第一天线缠绕在支撑件上,所述第一天线具有第一方位的第一磁偶极子; 并且通过所述支撑件中的第一组开口将第二天线缠绕在所述支撑件上,所述第二天线具有第二取向的第二磁偶极子,其中所述第一取向不同于所述第二取向,并且其中所述第一磁体的中心 偶极子与第二磁偶极子的中心基本上共定位。

    Downhole anchoring tools conveyed by non-rigid carriers

    公开(公告)号:US06651747B2

    公开(公告)日:2003-11-25

    申请号:US10008761

    申请日:2001-11-08

    IPC分类号: E21B2300

    摘要: An apparatus and method provides an anchoring apparatus for use in a wellbore that comprises a gripping assembly and an actuation assembly. In one arrangement, the actuation assembly includes a motor and a module having at least a compressible element (e.g., a hydraulic module) between the motor and the gripping assembly. Upon activation, the motor actuates the hydraulic module to cause activation of the gripping assembly. In one arrangement, the anchoring apparatus is designed to pass through a tubing or other restriction in the wellbore. When in the retracted state, the gripping assembly of the anchoring apparatus has an outer diameter that is smaller than an inner diameter of the tubing. When in the expanded state, the gripping assembly of the anchoring apparatus has an outer diameter than is substantially the same as the inner diameter of the liner to enable engagement of the gripping assembly against the liner.

    Perforating gun
    9.
    发明授权

    公开(公告)号:US6125946A

    公开(公告)日:2000-10-03

    申请号:US168800

    申请日:1998-10-08

    申请人: Kuo-Chiang Chen

    发明人: Kuo-Chiang Chen

    CPC分类号: E21B43/118 E21B23/14

    摘要: A perforating gun includes a guide, a first charge unit, a second charge unit and a linkage. The first and second charge units are coupled to the guide. The second charge unit is capable of being in a collapsed position for passing the second charge unit through a tubing and is capable of being in an expanded position for detonating the second charge unit. The linkage is connected to the second charge unit to communicate an applied force to cause the second charge unit to move the second charge unit along the guide toward the first charge unit when the second charge unit is at least partially in the expanded position.

    Ultra high temperature packer by high-temperature elastomeric polymers
    10.
    发明授权
    Ultra high temperature packer by high-temperature elastomeric polymers 有权
    超高温封隔器采用高温弹性聚合物

    公开(公告)号:US09470058B2

    公开(公告)日:2016-10-18

    申请号:US12635087

    申请日:2009-12-10

    IPC分类号: E21B33/12 C08G65/48 C08L71/00

    摘要: A high temperature downhole packer including a tubular member, an annular and longitudinally movable ring, and a packer. The tubular member has a stop located on an outer diameter thereof. The annular and longitudinally movable ring is disposed around the outer diameter of the tubular member. The packer element is disposed between the stop and the ring. The packer element includes a high temperature elastomeric polymer having a first storage modulus from about 1,000 MPa to about 10,000 MPa at a first temperature between about −100° C. and about 175° C., and a second storage modulus from about 1 MPa to about 1000 MPa at a second temperature ranging from about 175° C. to about 475° C.

    摘要翻译: 一种高温井下封隔器,包括管状构件,环形和可纵向移动的环以及封隔器。 管状构件具有位于其外径上的止动件。 环形和可纵向移动的环围绕管状构件的外径设置。 封隔器元件设置在止动件和环之间。 封隔器元件包括在约-100℃和约175℃之间的第一温度下具有约1,000MPa至约10,000MPa的第一储能模量和约1MPa至约175MPa的第二储能模量的高温弹性体聚合物 在约175℃至约475℃的第二温度下约1000MPa。