SYSTEM AND METHOD FOR REDUCING THE BOREHOLE GAP FOR DOWNHOLE FORMATION TESTING SENSORS
    1.
    发明申请
    SYSTEM AND METHOD FOR REDUCING THE BOREHOLE GAP FOR DOWNHOLE FORMATION TESTING SENSORS 有权
    用于减少井下形成测试传感器的孔隙的系统和方法

    公开(公告)号:US20080053707A1

    公开(公告)日:2008-03-06

    申请号:US11421945

    申请日:2006-06-02

    IPC分类号: E21B15/04

    CPC分类号: E21B47/01 E21B7/06 G01V11/005

    摘要: A system and method for downhole measurement for use with drill strings to reduce the borehole gap with respect to sensors carried by the drill string. In one embodiment, the sensors are mounted on a surface of the directional drilling hinged pad that comes in contact with the borehole wall. The hinged pad is pressed against the borehole wall as contact is made with the wall, thereby keeping the sensors at a minimum gap with respect to the wall. In another embodiment, the hinged pad is not used for directional drilling. Therefore the hinged pad is extended outward to the wall with the minimum necessary amount of force. Activation of the hinged pad can be initiated, for example, by flow of mud in the annulus of the string or through a user-provided command. The sensors can include resistivity, density, neutron, electromagnetic, acoustic, seismic, and NMR measurement sensors.

    摘要翻译: 一种用于井下测量的系统和方法,用于钻柱以减少相对于由钻柱承载的传感器的钻孔间隙。 在一个实施例中,传感器安装在定向钻井铰链垫的与钻孔壁接触的表面上。 当与壁形成接触时,铰接垫被压靠在井眼壁上,从而将传感器保持在相对于壁的最小间隙。 在另一个实施例中,铰接垫不用于定向钻孔。 因此铰链垫以最小的必要的力量向外延伸到墙壁。 可以例如通过串的环中的泥浆的流动或通过用户提供的命令来启动铰链垫的激活。 传感器可以包括电阻率,密度,中子,电磁,声学,地震和NMR测量传感器。

    SYSTEM, APPARATUS, AND METHOD OF CONDUCTING MEASUREMENTS OF A BOREHOLE
    2.
    发明申请
    SYSTEM, APPARATUS, AND METHOD OF CONDUCTING MEASUREMENTS OF A BOREHOLE 审中-公开
    系统,装置和导孔测量方法

    公开(公告)号:US20100108386A1

    公开(公告)日:2010-05-06

    申请号:US12685362

    申请日:2010-01-11

    CPC分类号: E21B47/024 E21B47/08

    摘要: A method is provided for conducting measurements of a borehole while drilling the borehole in a geological formation. First, a rotatable drilling assembly is provided that has, at a forward end, a drill bit and a borehole measurement tool connected rearward of the drill bit. The measurement tool includes at least one caliper arm extendible outward from the measurement tool. The method involves drilling the borehole by operating the rotatable drilling assembly. While drilling, the wall of the borehole is contacted with at least one extendable caliper arm of the borehole measurement tool and the extension of the caliper arm contacting the borehole wall is measured, thereby determining a distance between the measurement tool and the borehole wall. During rotation of the drilling assembly, contact is maintained between the caliper arm and the borehole wall and the measuring step is repeated at multiple positions of the drilling assembly.

    摘要翻译: 提供了一种用于在钻探地质层中钻孔的同时进行钻孔测量的方法。 首先,提供一种可旋转的钻孔组件,其在前端具有连接在钻头后面的钻头和钻孔测量工具。 测量工具包括从测量工具向外延伸的至少一个卡钳臂。 该方法涉及通过操作可旋转钻井组件来钻孔。 在钻孔时,钻孔的壁与钻孔测量工具的至少一个可延伸的卡钳臂接触,并测量与钻孔壁接触的卡钳臂的延伸部,由此确定测量工具与钻孔壁之间的距离。 在钻孔组件的旋转期间,在卡钳臂和钻孔壁之间保持接触,并且在钻孔组件的多个位置处重复测量步骤。

    MODULAR DOWNHOLE TOOL SYSTEM
    3.
    发明申请
    MODULAR DOWNHOLE TOOL SYSTEM 有权
    模块化工具系统

    公开(公告)号:US20060220649A1

    公开(公告)日:2006-10-05

    申请号:US10907368

    申请日:2005-03-30

    IPC分类号: G01V3/00 G01V3/02 G01V3/18

    摘要: A downhole tool for formation logging includes a tool body configured to move in a borehole; and at least one sensor module mounted in at least one mounting location on the tool body, wherein the at least one sensor module is interchangeable with other sensor modules that make different measurements. A downhole tool may further comprise a measurement system disposed in the tool body, wherein the measurement system is operatively coupled to the at least one sensor module.

    摘要翻译: 用于地层测井的井下工具包括构造成在钻孔中移动的工具主体; 以及安装在所述工具主体上的至少一个安装位置中的至少一个传感器模块,其中所述至少一个传感器模块可与进行不同测量的其它传感器模块互换。 井下工具还可以包括设置在工具主体中的测量系统,其中测量系统可操作地联接到至少一个传感器模块。