Apparatus and method for formation testing while drilling using combined absolute and differential pressure measurement
    3.
    发明授权
    Apparatus and method for formation testing while drilling using combined absolute and differential pressure measurement 有权
    使用组合绝对和差压测量进行钻井时的地层测试装置和方法

    公开(公告)号:US06427530B1

    公开(公告)日:2002-08-06

    申请号:US09698795

    申请日:2000-10-27

    IPC分类号: E21B4700

    CPC分类号: E21B47/06

    摘要: The present invention provides a tool and method for obtaining at least one parameter of interest such as pressure of a subterranean formation in-situ. The tool comprises a carrier member for conveying the tool into a borehole, at least one selectively extendable member mounted on the carrier member for separating the annulus into a first portion and a second portion, a first port exposable to formation fluid in the first portion, a second port exposable to a fluid containing drilling fluid in the second portion, a first sensor for determining a first value indicative of a first portion characteristic, a second sensor for determining a second value indicative of a second portion characteristic referenced to the first value. The method comprises conveying a tool into a borehole, separating the annulus into a first portion and a second portion by extending at least one selectively extendable member, exposing a first port to formation fluid in the first portion, exposing a second port to fluid in the second portion, determining a first value indicative of an absolute pressure in the first portion, determining a second value indicative of a differential pressure of the second portion referenced to the absolute pressure of the first portion, and combining the first and second values using a processor, the combination being indicative of formation pressure.

    摘要翻译: 本发明提供了一种用于获得至少一个目标参数的工具和方法,例如原位地层的压力。 该工具包括用于将工具输送到钻孔中的载体构件,安装在载体构件上的至少一个可选择性地延伸的构件,用于将环空分隔成第一部分和第二部分,在第一部分中可暴露于地层流体的第一端口, 可暴露于在第二部分中含有钻井液的流体的第二端口,用于确定指示第一部分特性的第一值的第一传感器,用于确定指示参考第一值的第二部分特征的第二值的第二传感器。 该方法包括将工具输送到钻孔中,通过延伸至少一个可选择性地延伸的构件将环形空间分隔成第一部分和第二部分,将第一端口暴露于第一部分中的地层流体,将第二端口暴露于第二部分中的流体 确定表示第一部分中的绝对压力的第一值,确定指示第二部分的压差的第二值,以与第一部分的绝对压力相对应的第二值,以及使用处理器 ,组合表示地层压力。

    Apparatus and method for formation testing while drilling with minimum system volume
    6.
    发明授权
    Apparatus and method for formation testing while drilling with minimum system volume 有权
    最小系统体积钻孔时的地层测试装置和方法

    公开(公告)号:US06478096B1

    公开(公告)日:2002-11-12

    申请号:US09621398

    申请日:2000-07-21

    IPC分类号: E21B4910

    摘要: A minimum volume apparatus and method is provided including a tool for obtaining at least one parameter of interest of a subterranean formation in-situ, the tool comprising a carrier member, a selectively extendable member mounted on the carrier for isolating a portion of annulus, a port exposable to formation fluid in the isolated annulus space, a piston integrally disposed within the extendable member for urging the fluid into the port, and a sensor operatively associated with the port for detecting at least one parameter of interest of the fluid.

    摘要翻译: 提供了一种最小体积的装置和方法,其包括用于在原地获得地下地层的至少一个目标参数的工具,所述工具包括载体构件,安装在载体上用于隔离环的一部分的选择性可延伸构件, 可暴露于隔离环空间内的地层流体的端口,整体地设置在可延伸构件内用于将流体推入端口的活塞以及与端口可操作地相关联的传感器,用于检测流体感兴趣的至少一个参数。

    DOWNHOLE TOOLS WITH ELECTRO-MECHANICAL AND ELECTRO-HYDRAULIC DRIVES
    7.
    发明申请
    DOWNHOLE TOOLS WITH ELECTRO-MECHANICAL AND ELECTRO-HYDRAULIC DRIVES 有权
    电动机械和液压驱动的卧式工具

    公开(公告)号:US20110147086A1

    公开(公告)日:2011-06-23

    申请号:US12975557

    申请日:2010-12-22

    IPC分类号: E21B7/00 E21B4/00

    摘要: An apparatus to be conveyed into a wellbore is provided, wherein the apparatus includes a housing configured to be conveyed downhole and a drive member located in the housing. The apparatus further includes a drive unit configured to actuate movement of the drive member by selectively coupling to the drive member, wherein the coupling of the device to the drive member is controlled by applying an energy to a selected material in the device.

    摘要翻译: 提供一种要输送到井眼中的装置,其中该装置包括构造成在井下传送的壳体和位于壳体中的驱动构件。 该装置还包括驱动单元,该驱动单元被配置为通过选择性地联接到驱动构件来致动驱动构件的运动,其中通过向装置中的选定材料施加能量来控制装置与驱动构件的联接。