Method and apparatus for retaining a core sample within a coring tool
    3.
    发明授权
    Method and apparatus for retaining a core sample within a coring tool 有权
    用于将芯样品保持在取芯工具内的方法和装置

    公开(公告)号:US06729416B2

    公开(公告)日:2004-05-04

    申请号:US09832606

    申请日:2001-04-11

    IPC分类号: E21B1002

    CPC分类号: E21B49/06 E21B25/10

    摘要: A core sample retaining sleeve is provided for preventing loss of a cut core sample from the distal end of a coring bit, particularly during retraction of the coring bit to within the coring tool. Preferably, the core sample retaining sleeve is disposed concentrically within the coring bit to fit around the received core sample. The core sample retaining sleeve has one or more retaining fingers formed on the distal end of the coring bit. The retaining fingers are selectively closeable, preferably by urging the one or more retaining fingers against one or more guide members. A guide member is preferably provided as a stationary ridge on the inner, distal surface of the coring bit. The core sample is contained and protected within the closed retaining sleeve.

    摘要翻译: 提供芯样品保持套筒,用于防止从取芯钻头的远端损失切割的芯样品,特别是在将取芯钻头缩回到取芯工具内时。 优选地,芯样品保持套筒同心地设置在取芯钻头内以适合接收的芯样品。 芯样品保持套筒具有形成在取芯钻头的远端上的一个或多个保持指状物。 优选地,通过将​​一个或多个保持手指推靠在一个或多个引导构件上,保持指状物可选择性地关闭。 引导构件优选地设置在取芯钻头的内表面上的固定脊。 核心样品被封闭并保护在封闭的保持套筒内。

    Methods and apparatus to perform stress testing of geological formations
    8.
    发明授权
    Methods and apparatus to perform stress testing of geological formations 有权
    对地质构造进行压力测试的方法和装置

    公开(公告)号:US08146416B2

    公开(公告)日:2012-04-03

    申请号:US12408850

    申请日:2009-03-23

    IPC分类号: E21B47/06

    摘要: Example methods and apparatus to perform stress testing of geological formations are disclosed. A disclosed example downhole stress test tool for pressure testing a geological formation comprises first and second packers selectively inflatable to form an annular region around the tool, a container configured to store a fracturing fluid, wherein the fracturing fluid is different than a formation fluid and a drilling fluid, a pump configured to pump the fracturing fluid into the first and second packers to inflate the first and second packers and to pump the fracturing fluid into the annular region to induce a fracture of the geological formation, and a sensor configured to detect a pressure of the fracturing fluid pumped into the annular region corresponding to the fracture of the geological formation.

    摘要翻译: 公开了进行地质构造压力测试的示例方法和装置。 用于压力测试地质构造的公开的示例性井下应力测试工具包括选择性地可充气以形成围绕工具的环形区域的第一和第二封隔器,构造成存储压裂流体的容器,其中压裂流体不同于地层流体和 钻井液,构造成将压裂流体泵送到第一和第二封隔器中以使第一和第二封隔器膨胀并将压裂流体泵入环形区域以引起地质构造断裂的泵;以及被配置为检测 泵送到对应于地质构造断裂的环形区域的压裂液的压力。

    TOOL TO DETERMINE FORMATION FLUID MOVEMENT
    9.
    发明申请
    TOOL TO DETERMINE FORMATION FLUID MOVEMENT 有权
    确定流体运动的工具

    公开(公告)号:US20110277997A1

    公开(公告)日:2011-11-17

    申请号:US12779309

    申请日:2010-05-13

    IPC分类号: E21B49/00 E21B33/12

    摘要: The present disclosure relates to one or more apparatuses and methods to determine fluid movement within a formation. The apparatus includes a first packer configured to selectively engage a wall of a borehole of the formation, an outlet disposed adjacent to the first packer, wherein the outlet is configured to pump a first fluid therefrom and into the formation, and a detecting tool configured to detect the first fluid within the formation. Movement of the first fluid may be determined based upon the detection of the first fluid within the formation.

    摘要翻译: 本公开涉及确定地层内流体运动的一种或多种装置和方法。 该设备包括:第一封隔器,其构造成选择性地接合地层的井眼的壁;邻近第一封隔器设置的出口,其中出口构造成将第一流体从其中泵送并进入地层;以及检测工具, 检测地层内的第一流体。 可以基于地层内的第一流体的检测来确定第一流体的移动。