PACKER ASSEMBLY WITH ENHANCED SEALING LAYER SHAPE
    1.
    发明申请
    PACKER ASSEMBLY WITH ENHANCED SEALING LAYER SHAPE 有权
    包装组装与增强密封层形状

    公开(公告)号:US20140096979A1

    公开(公告)日:2014-04-10

    申请号:US13645875

    申请日:2012-10-05

    IPC分类号: E21B33/127

    CPC分类号: E21B33/127 E21B49/082

    摘要: A packer assembly with an enhanced sealing layer is provided. The packer assembly may have an outer bladder with drains. The packer assembly may further have an inflatable inner packer disposed inside the outer bladder such that inflation of the inner packer causes the outer bladder to expand. End pieces may be coupled to the inner bladder and the outer bladder, and flowlines may be in fluid communication with the drains and the end pieces. A piston ring may reinforce the packer assembly. The piston ring may have three or more passive pistons which expand with the packer assembly during testing.

    摘要翻译: 提供了具有增强的密封层的封隔器组件。 封隔器组件可以具有带有排水沟的外部囊。 封隔器组件还可以具有设置在外囊内的可充气内封隔器,使得内封隔器的充气导致外囊膨胀。 端件可以联接到内囊和外囊,并且流线可以与排水管和端件流体连通。 活塞环可以增强封隔器组件。 活塞环可以具有三个或更多个被动活塞,其在测试期间与封隔器组件一起膨胀。

    Determining fluid composition downhole from optical spectra
    2.
    发明授权
    Determining fluid composition downhole from optical spectra 有权
    从光谱确定井下的流体组成

    公开(公告)号:US09334729B2

    公开(公告)日:2016-05-10

    申请号:US13644772

    申请日:2012-10-04

    IPC分类号: G01F7/00 E21B49/10

    CPC分类号: E21B49/10 E21B49/08

    摘要: Obtaining in-situ optical spectral data associated with a formation fluid flowing through a downhole formation fluid sampling apparatus, and predicting a parameter of the formation fluid flowing through the downhole formation fluid sampling apparatus based on projection of the obtained spectral data onto a matrix that corresponds to a predominant fluid type of the formation fluid.

    摘要翻译: 获得与流经井下地层流体采样装置的地层流体相关联的原位光谱数据,以及基于所获得的光谱数据投影到相应的矩阵上,预测流经井下地层流体取样装置的地层流体的参数 到地层流体的主要流体类型。

    Formation Testing Planning And Monitoring
    3.
    发明申请
    Formation Testing Planning And Monitoring 有权
    地层试验规划与监测

    公开(公告)号:US20120316788A1

    公开(公告)日:2012-12-13

    申请号:US13500459

    申请日:2010-10-05

    IPC分类号: G06F19/00 G01V9/02

    摘要: An example method comprises collecting formation temperature data along a wellbore extending into a subterranean formation, determining test operating parameter values, performing a wellbore hydraulic simulation of the response of wellbore fluid conditions to the test operating parameter values and the formation temperature data, determining whether the response of wellbore fluid conditions is indicative of one of a well control and a well stability problem, and initiating a test based on the determination whether the response of wellbore fluid conditions is indicative of one of a well control and a well stability problem.

    摘要翻译: 示例性方法包括沿着延伸到地层中的井眼收集地层温度数据,确定测试操作参数值,对井眼流体条件对测试操作参数值和地层温度数据的响应进行井筒水力模拟,确定是否 井筒流体条件的响应表明井控制和井稳定性问题之一,并且基于确定井筒流体条件的响应是否表明油井控制和井稳定性问题之一来开始测试。

    Method for determining pressure of earth formations
    6.
    发明申请
    Method for determining pressure of earth formations 有权
    确定地层压力的方法

    公开(公告)号:US20050171699A1

    公开(公告)日:2005-08-04

    申请号:US10769014

    申请日:2004-01-30

    CPC分类号: E21B47/06 E21B49/008

    摘要: A method for determining formation pressure at a depth region of formations surrounding a borehole, including: keeping track of the time since cessation of drilling at the depth region; deriving formation permeability at the depth region; causing wellbore pressure to vary periodically in time and determining, at the depth region, the periodic and non-periodic component of pressure measured in the formations; determining, using the time, the periodic component and the permeability, the formation pressure diffusivity and transmissibility and an estimate of the size of the pressure build-up zone around the wellbore at the depth region; determining, using the time, the formation pressure diffusivity and transmissibility, and the non-periodic component, the leak-off rate of the mudcake at the depth region; determining, using the leak-off rate, the pressure gradient at the depth region; and extrapolating, using the pressure gradient and the size of the build-up zone, to determine the formation pressure.

    摘要翻译: 一种用于确定钻孔周围地层深度区域的地层压力的方法,包括:跟踪在深度区域停止钻孔的时间; 在深度区域导出地层渗透率; 导致井筒压力在时间上周期性地变化,并且在深度区域确定在地层中测量的压力的周期性和非周期性分量; 使用时间确定周期分量和渗透率,地层压力扩散系数和透射率以及在深度区域周围井筒周围的压力增加区的尺寸的估计; 使用时间确定地层压力扩散率和透射率以及非周期性分量,泥饼在深度区域的泄漏速率; 使用泄漏率来确定深度区域处的压力梯度; 并使用压力梯度和积聚区的尺寸进行外推,以确定地层压力。

    Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same

    公开(公告)号:US06642715B2

    公开(公告)日:2003-11-04

    申请号:US10242588

    申请日:2002-09-12

    IPC分类号: G01V300

    摘要: The present invention provides methods and apparatus for determining flow velocity within a formation utilizing nuclear magnetic resonance (NMR) techniques in which the shape of the resonance region is restricted so that sensitivity to radial flow or vertical flow is obtained (or both when more than one NMR tool is used). Flow velocity using these NMR tools is determined using decay amplitude, frequency displacement or stimulated echoes (where the spins are stored along the magnetic field instead of the transverse plane to exploit echo decays and frequency displacements) based on the application of adiabatic pulses. Based on the described NMR measurement of flow velocity, additional wellbore parameters may be obtained such as a direct measurement of permeability, an assessment of drilling damage to the wellbore, formation pressure, invasion rate of the mud filtrate or the migration of fine mud particles during sampling operations.

    Interface engagement and locking system
    8.
    发明授权
    Interface engagement and locking system 失效
    接口接合和锁定系统

    公开(公告)号:US5562458A

    公开(公告)日:1996-10-08

    申请号:US363174

    申请日:1994-12-23

    IPC分类号: H01R13/62 H01R43/26

    摘要: An operating mechanism (50,182) for providing mechanical advantage for mating and unmating a fixture (10) to a receiver (150) manually at a separable interface for mating complementary arrays of electrical connectors (12,152) for use in testing equipment. The leading end (80,88) of the operating mechanism (50) of the fixture is inserted into a receptacle (182) of the receiver and locks to secure the fixture to the receiver, simultaneously unlocking a subassembly (58) within the operating mechanism to be manually rotated to fully mate the now-adjacent arrays of connectors. The subassembly (58) is movably secured within an outer barrel (54) affixed to a frame (20) of the fixture and includes an axially spring biased central shaft (70) movable within an inner barrel (72). Arrays of locking balls (76,82) within apertures 86,90) of the inner barrel move between annular grooves 78,84) of the central shaft (70) and annular grooves 186,142) of a surrounding cylinder (either the receptacle 182) or the outer barrel (54)) to lock and unlock the central shaft from being axially moved with respect to the particular surrounding cylinder. An acme screw (100) within the operating mechanism converts manual rotation of a handle (52) into gradual axial movement with substantially enhanced force.

    摘要翻译: 一种操作机构(50,182),用于提供机械优点,用于在可分离接口处手动地将固定装置(10)配合和拆下到接收器(150),用于配合用于测试设备的电连接器(12,152)的互补阵列。 固定装置的操作机构(50)的前端(80,88)被插入接收器的插座(182)中并锁定以将固定装置固定在接收器上,同时解锁操作机构(58)内的子组件 手动旋转以完全匹配现在相邻的连接器阵列。 子组件(58)可移动地固定在固定到固定件的框架(20)的外筒(54)内,并且包括在内筒(72)内可移动的轴向弹簧偏压的中心轴(70)。 内筒的孔中的锁定球(76,82)的阵列在中心轴(70)的环形凹槽(78,84)和周围圆柱体(插座182)的环形槽186,142之间移动 外筒(54))以锁定和解锁中心轴以相对于特定的周围圆柱体轴向移动。 操作机构内的旋钮(100)将手柄(52)的手动旋转转换成具有显着提高的力的逐渐的轴向运动。

    Systems and methods for well data analysis
    10.
    发明授权
    Systems and methods for well data analysis 有权
    井数据分析的系统和方法

    公开(公告)号:US08136395B2

    公开(公告)日:2012-03-20

    申请号:US11968026

    申请日:2007-12-31

    IPC分类号: E21B47/00

    CPC分类号: E21B49/008

    摘要: Examples of techniques for analyzing well data which may be encountered during formation testing are disclosed. Certain portions of the tests may exhibit an indication of anomalous behavior, defects, errors or events that may have occurred during testing. One or more confidence tokens may be identified during or after the execution of a test. One or more of these confidence tokens may be analyzed to determine whether such anomalous behavior, defects, errors or events have occurred during the test. These confidence tokens may then be used to determine a level of confidence in the results derived from the tests performed and/or their underlying data and interpretation.

    摘要翻译: 公开了用于分析在形成测试期间可能遇到的井数据的技术的示例。 测试的某些部分可能表现出在测试期间可能发生的异常行为,缺陷,错误或事件的指示。 可以在执行测试期间或之后识别一个或多个置信令牌。 可以分析这些置信令中的一个或多个,以确定在测试期间是否发生了这样的异常行为,缺陷,错误或事件。 然后可以使用这些置信令牌来确定从执行的测试和/或其基础数据和解释得到的结果的置信度。