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37 条记录 (耗时 0.022 秒)

    Retrievable subsea device and method
    1.
    发明授权
    Retrievable subsea device and method 有权

    公开(公告)号：US10214982B2

    公开(公告)日：2019-02-26

    申请号：US13808049

    申请日：2011-07-01

    申请人： George Telfer

    发明人： George Telfer

    IPC分类号： E21B29/02 ,  E21B29/00 ,  E21B17/10 ,  E21B33/06 ,  E21B33/068

    摘要： A protective device for a blow out preventer stack (B.O.P.), and a sidetracking method using same during an oil-field milling or drilling operation requiring a window to be formed in casing to access a formation, the device having a sleeve assembly and a running tool releasably attached to the sleeve assembly, wherein the running tool comprises a running tool housing connected to the sleeve assembly and a separable running tool body connectable within the length of a work string having a BHA with a mill or bit, the running tool housing being shear pinned to the running tool body for running in hole, wherein the running tool housing is configured to shear from the running tool body during deployment into a cased wellbore to sealingly seat the sleeve assembly within a B.O.P. and form a barrier to ingress of swarf into the B.O.P.

    WELLBORE FLUID
    6.
    发明申请
    WELLBORE FLUID 有权
    井底流体

    公开(公告)号：US20150021027A1

    公开(公告)日：2015-01-22

    申请号：US14127153

    申请日：2012-06-22

    申请人： John W. Chapman

    发明人： John W. Chapman

    IPC分类号： C09K8/42 ,  E21B33/13

    CPC分类号： C09K8/426 ,  C09K8/035 ,  E21B33/13

    摘要： The present invention provides a wellbore fluid, such as a drilling, completion or workover fluid, said wellbore fluid comprising a glucomannan additive. Further provided is a method of forming a gel plug from the wellbore fluid, a method of modifying the properties of a wellbore fluid, a method of drilling a subterranean hole with such a fluid and the use of glucomannan in wellbore fluids.

    摘要翻译： 本发明提供井眼流体，例如钻井，完井或修井液，所述井筒流体包含葡甘露聚糖添加剂。 进一步提供了从井筒流体形成凝胶塞的方法，改进井筒流体性质的方法，用这种流体钻地下孔的方法以及在井眼流体中使用葡甘露聚糖。

    Method For Reducing Permeability Of A Subterranean Reservoir
    7.
    发明申请
    Method For Reducing Permeability Of A Subterranean Reservoir 有权
    降低地下水库渗透性的方法

    公开(公告)号：US20140041870A1

    公开(公告)日：2014-02-13

    申请号：US13982226

    申请日：2012-01-27

    申请人： Mark Sanders ,  Russell Watson

    发明人： Mark Sanders ,  Russell Watson

    IPC分类号： C09K8/42 ,  E21B33/138

    CPC分类号： C09K8/426 ,  C09K8/502 ,  C09K8/516 ,  C09K2208/18 ,  E21B33/138

    摘要： The present invention provides a method of isolating a selected reservoir zone in a subterranean reservoir comprising at least the step of squeezing a treatment fluid into the selected reservoir zone, the treatment fluid comprising: a viscosifying agent; a fluid loss control agent; and a particulate material. The invention further provides a treatment fluid comprising a base fluid; a viscosifying agent; at least 20 kg/m3 of a fluid loss control agent; and a particulate material.

    摘要翻译： 本发明提供了一种分离地下储层中选定的储层区域的方法，该方法至少包括将处理流体挤压到所选储存区域中的步骤，所述处理流体包括：增粘剂; 流失控制剂; 和颗粒材料。 本发明还提供一种包含基础流体的处理流体; 增粘剂; 至少20kg / m3的失水控制剂; 和颗粒材料。

    Downhole tool and method
    9.
    发明授权
    Downhole tool and method 有权
    井下工具及方法

    公开(公告)号：US09260941B2

    公开(公告)日：2016-02-16

    申请号：US13575895

    申请日：2011-02-04

    申请人： James Linklater

    发明人： James Linklater

    IPC分类号： E21B31/06 ,  E21B37/00

    CPC分类号： E21B37/00 ,  E21B31/06

    摘要： A cleaning tool (1) for use in cleaning ferrous material from a wellbore has a magnetic cleaning functionality by provision of magnets (5) in an Halbach array on a downhole tool component of a workstring. The Halbach array may be an Halbach cylinder positioned on a mandrel wherein the magnetic field is external to the cylinder with substantially zero magnetic field within the tool.

    摘要翻译： 用于从井眼清洁铁质材料的清洁工具（1）具有通过在工作绳的井下工具部件上的Halbach阵列中提供磁体（5）而具有磁性清洁功能。 Halbach阵列可以是位于心轴上的Halbach圆柱体，其中磁场在气缸的外部，工具内具有大致零磁场。