DOWNHOLE ORIENTATION SENSING WITH NUCLEAR SPIN GYROSCOPE
    62.
    发明公开
    DOWNHOLE ORIENTATION SENSING WITH NUCLEAR SPIN GYROSCOPE 有权
    利用核旋转陀螺仪测量井下定向

    公开(公告)号:EP2622177A2

    公开(公告)日:2013-08-07

    申请号:EP11767028.1

    申请日:2011-09-29

    IPC分类号: E21B47/024 G01C19/62

    摘要: Downhole orientation sensing with a nuclear spin gyroscope. A method of sensing orientation of an instrument assembly in a subterranean well can include incorporating an atomic comagnetometer and an optical source into the instrument assembly, and installing the instrument assembly in the well. A downhole orientation sensing system for use in conjunction with a subterranean well can include a downhole instrument assembly positioned in the well, the instrument assembly including an atomic comagnetometer and an optical source which transmits light to the atomic comagnetometer.

    摘要翻译: 用核自旋陀螺仪进行井下定向感测。 感测地下井中仪器组件的定向的方法可以包括将原子式互补金属计和光源结合到仪器组件中,并将仪器组件安装在井中。 用于与地下井结合使用的井下定向感测系统可以包括定位在井中的井下仪器组件,该仪器组件包括原子式互补测量计和将光传输到原子式互补金属计的光源。

    APPARATUS AND METHODS FOR CONTINUOUS COMPATIBILITY TESTING OF SUBTERRANEAN FLUIDS AND THEIR COMPOSITIONS UNDER WELLBORE CONDITIONS
    64.
    发明公开
    APPARATUS AND METHODS FOR CONTINUOUS COMPATIBILITY TESTING OF SUBTERRANEAN FLUIDS AND THEIR COMPOSITIONS UNDER WELLBORE CONDITIONS 有权
    设备和方法,孔与条件地下流体与成分连续兼容性测试

    公开(公告)号:EP2609413A2

    公开(公告)日:2013-07-03

    申请号:EP11755096.2

    申请日:2011-08-22

    IPC分类号: G01N11/14

    CPC分类号: G01N11/14

    摘要: Disclosed is a fluid testing device which utilizes a small, cross-section fluid interface to separate a test fluid chamber from a drive and measuring chamber. The test fluid chamber contains the test fluid and a paddle-type fluid test assembly. The drive and measuring chamber contains a second fluid and assemblies for moving the paddle and for determining the resistance movement. The two chambers are connected together by a narrow cross-section passageway allowing for continuous testing while test fluids are flowed through the test chamber and for successive testing of different samples without breaking down the device between tests. A pair of coaxial shafts extends between the test fluid chamber and the drive and measuring chamber. The shafts are connected together by a spring located in the drive chamber whereby the resistance to movement is determined by measuring the deflection in the spring. The shafts are magnetically coupled to a motor to rotate the shafts.

    A FLUID LOSS ADDITIVE CONTAINING A BIODEGRADABLE GRAFTED COPOLYMER FOR A CEMENT COMPOSITION
    65.
    发明公开
    A FLUID LOSS ADDITIVE CONTAINING A BIODEGRADABLE GRAFTED COPOLYMER FOR A CEMENT COMPOSITION 审中-公开
    流体损失与生物可降解移植物黏结剂组合物附加

    公开(公告)号:EP2582645A1

    公开(公告)日:2013-04-24

    申请号:EP11728030.5

    申请日:2011-06-17

    IPC分类号: C04B28/02 C09K8/487

    摘要: According to an embodiment, a fluid loss additive comprises a biodegradable grafted copolymer, wherein the copolymer comprises: (i) a first polymer comprising a monomer or monomers selected from the group consisting of acrylamido-2-methylpropane sulfonic acid, N-N dimethyl acrylamide, N-vinyl-N- methylaceamide, N-vinylformamide, N-vinylpyrrolidone, acrylonitrile, acrylamide, acrylomorpholine, vinyl alcohol, maleic anhydride, acrylic acid, and any combination thereof; and (ii) a second polymer, wherein the first polymer is grafted onto the second polymer. According to another embodiment, a method of cementing in a low-temperature subterranean formation comprises: introducing a cement composition into the subterranean formation comprising: (i) cement; (ii) water; and (iii) the fluid loss additive; and allowing the cement composition to set. According to another embodiment, a method of cementing in a high-temperature subterranean formation comprises: introducing a cement composition into the subterranean formation comprising: (i) cement; (ii) water; (iii) a clay; and (iv) the fluid loss additive; and allowing the cement composition to set.

    WELLBORE SERVICING COMPOSITIONS AND METHODS OF MAKING AND USING SAME
    68.
    发明公开
    WELLBORE SERVICING COMPOSITIONS AND METHODS OF MAKING AND USING SAME 有权
    WELL服务组合和方法的生产和使用

    公开(公告)号:EP2473700A1

    公开(公告)日:2012-07-11

    申请号:EP10754360.5

    申请日:2010-09-03

    IPC分类号: E21B29/10 E21B33/13 E21B47/09

    CPC分类号: E21B29/10 E21B33/13 E21B47/09

    摘要: A method of servicing hydrocarbon production equipment comprising locating at least a portion of a hydrocarbon flow conduit experiencing a loss of functionality; creating a port to access an interior flow bore of the hydrocarbon flow conduit; installing at least one piece of equipment proximate the access port, wherein the equipment has access to the interior flow bore via the access port; and placing a servicing composition into the conduit via the access port, wherein the servicing composition prevents the loss of materials from the interior of the hydrocarbon flow conduit to the surrounding environment.