Method for preserving core sample integrity
    1.
    发明授权
    Method for preserving core sample integrity 有权
    保存核心样品完整性的方法

    公开(公告)号:US6283228B2

    公开(公告)日:2001-09-04

    申请号:US73787700

    申请日:2000-12-15

    CPC classification number: E21B25/08

    Abstract: A method for protecting integrity of a core sample during transport from a subterranean formation to the surface comprising: cutting a core sample from the subterranean formation using a drilling fluid; encapsulating the core sample with an encapsulating material that is separate from the drilling fluid and comprises a property which renders the encapsulating material capable of protecting the chemical integrity of the core sample during transport from the subterranean formation to the surface, wherein the property is other than a property selected from the group consisting of a viscosity which increases in response to a decrease in temperature and an ability to solidify in response to a decrease in temperature; and, transporting the encapsulated core sample from the subterranean formation to the surface.

    Abstract translation: 一种用于在从地下地层运送到地面期间保护核心样品的完整性的方法,包括:使用钻井液从所述地层切割芯样品; 用与钻井液分开的封装材料包封核心样品,并且包括使包封材料能够在从地下地层运送到地面期间能够保护核心样品的化学完整性的性质,其中该性质不同于 选自由温度降低而增加的粘度和响应于温度降低而凝固的能力的性质; 并且将包封的核心样品从地层运送到表面。

    TOOLS FOR USE IN DRILLING OR ENLARGING WELL BORES HAVING EXPANDABLE STRUCTURES AND METHODS OF MAKING AND USING SUCH TOOLS

    公开(公告)号:WO2011041553A3

    公开(公告)日:2011-06-30

    申请号:PCT/US2010050917

    申请日:2010-09-30

    Inventor: RADFORD STEVEN R

    CPC classification number: E21B10/322

    Abstract: Expandable reamers for enlarging boreholes in subterranean formations include a tubular body at least one member positioned in openings in the tubular body. The at least one member is configured to move between retracted and extended positions. A push sleeve is disposed at least partially within the tubular body and coupled to the at least one member. The push sleeve moves axially upward to move the member to the extended position in response to a pressure of drilling fluid passing through a drilling fluid flow path in the tubular body. The push sleeve moves axially downward to move the member to the retracted position in response to a pressure of drilling fluid upon a restrictive element disposed within the fluid passageway. The restrictive element disposed within the fluid passageway may be discarded from the fluid passageway by increasing the flow rate through the drilling fluid flow path.

    DEPLOYMENT MECHANISM FOR WELL LOGGING DEVICES
    6.
    发明申请
    DEPLOYMENT MECHANISM FOR WELL LOGGING DEVICES 审中-公开
    测井装置的部署机理

    公开(公告)号:WO2013015965A2

    公开(公告)日:2013-01-31

    申请号:PCT/US2012045680

    申请日:2012-07-06

    CPC classification number: G01V11/005 E21B7/12

    Abstract: Devices and methods for logging a wellbore condition. A logging-on-demand tool is used which includes a logging tool housing assembly carried by a running string and a logging tool that is retained within the logging tool housing assembly and is selectively movable between a retracted position, wherein the logging tool is retained radially within the logging tool housing assembly, and a deployed position, wherein the logging tool is extended axially from the logging tool housing assembly.

    Abstract translation: 用于记录井眼条件的设备和方法。 使用按需登录工具,其包括由运行的绳索和测井工具承载的测井工具壳体组件,所述测井工具保持在测井工具壳体组件内并且可选择性地在缩回位置和移动位置之间移动,其中测井工具径向保持 在测井工具壳体组件内以及展开位置,其中测井工具从测井工具壳体组件轴向延伸。

    TOOLS FOR USE IN SUBTERRANEAN BOREHOLES HAVING EXPANDABLE MEMBERS AND RELATED METHODS
    7.
    发明申请
    TOOLS FOR USE IN SUBTERRANEAN BOREHOLES HAVING EXPANDABLE MEMBERS AND RELATED METHODS 审中-公开
    用于具有可扩展成员的下层钻孔中的工具及相关方法

    公开(公告)号:WO2012064737A3

    公开(公告)日:2012-07-19

    申请号:PCT/US2011059781

    申请日:2011-11-08

    CPC classification number: E21B10/322 E21B7/28 E21B23/00

    Abstract: Expandable apparatus for use in subterranean boreholes include at least one member configured to move between a retracted position and an extended position. A latching member disposed in the tubular body may selectively retain the at least one member in the retracted position. Methods of operating an expandable apparatus include securing at least one member of the expandable apparatus in a retracted position by engaging an inner wall of a tubular body with at least one latch member disposed in at least one aperture formed in a latch sleeve.

    Abstract translation: 用于地下钻孔的可膨胀装置包括构造成在缩回位置和延伸位置之间移动的至少一个构件。 设置在管状体中的闩锁构件可以选择性地将至少一个构件保持在缩回位置。 操作可扩张装置的方法包括通过将管状体的内壁与设置在形成在闩锁套筒中的至少一个孔中的至少一个闩锁构件接合来将可扩张装置的至少一个构件固定在缩回位置。

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