Nonsteady-state core holder
    1.
    发明授权
    Nonsteady-state core holder 失效
    非稳态核心架

    公开(公告)号:US4537063A

    公开(公告)日:1985-08-27

    申请号:US611101

    申请日:1984-05-17

    CPC classification number: G01N15/0806

    Abstract: A core holder is used in the nonsteady-state testing of permeability and other flow characteristics of a geological core sample. A reference pressure reservoir assembly contains a predetermined volume of test gas at a known pressure, and a gas operated valve admits this test gas rapidly to the upstream end of the core sample. The downstream end of the core sample is open to the atmosphere, and the pressure in the reference pressure reservoir assembly is monitored as it decays in time while the test gas passes through the core sample. The gas-operated valve is formed of an upstream plug, a gland fitting the plug, and a valve stem fitting into a generally cylindrical cavity formed in the plug and gland. The valve stem has an enlarged head at one end with an annular slot on a cylindrical surface thereof. This structure minimizes turbulence in the flow of the test gas through the valve assembly.

    Abstract translation: 核心夹具用于地质核心样品的渗透性和其他流动特性的非稳态测试。 参考压力储存器组件在已知压力下包含预定体积的测试气体,并且气体操作阀将该测试气体快速地允许到核心样品的上游端。 芯样品的下游端向大气开放,并且当测试气体通过芯样品时,参考压力储存器组件中的压力随时间而衰减。 气动阀由上游塞子,与塞子接合的压盖以及装配在插塞和压盖中形成的大致圆柱形空腔中的阀杆形成。 阀杆在其一端具有扩大的头部,在其圆柱形表面上具有环形槽。 这种结构使通过阀组件的测试气体的流动的湍流最小化。

    Apparatus for measuring the resistivity of a sample
    2.
    发明授权
    Apparatus for measuring the resistivity of a sample 失效
    用于测量样品电阻率的装置

    公开(公告)号:US4734649A

    公开(公告)日:1988-03-29

    申请号:US837811

    申请日:1986-03-10

    CPC classification number: G01N27/043 G01N33/241

    Abstract: A core holder is provided for making petrophysical measurements of core samples from a borehole. The core holder is designed to make resistivity measurements and fluid-flow tests under reproduced conditions of in-situ fluid saturation, reservoir pressure and reservoir temperature.

    Abstract translation: 提供了一个核心支架,用于从钻孔进行岩心样品的岩石物理测量。 核心支架设计用于在现场液体饱和,储层压力和储层温度的再生条件下进行电阻率测量和流体流动测试。

    Mercury pump
    3.
    发明授权
    Mercury pump 失效
    汞泵

    公开(公告)号:US4566311A

    公开(公告)日:1986-01-28

    申请号:US649120

    申请日:1984-09-10

    CPC classification number: G01N15/0886 G01N2015/0813

    Abstract: A mercury pump for analyzing geological core samples has a vertically oriented cylindrical cavity in which a lower portion forms a mercury displacement chamber and an upper portion in axial alignment with it forms a sample chamber. A pressure transducer, e.g., a strain gauge or solid-state sensor, in communication with the sample chamber produces an electrical pressure signal. A screw ball jack urges a synthetic-resin piston upwards in the displacement section to push the mercury into the sample chamber. The displacement of the mercury is sensed by an electronic encoder coupled to the hand crank of the jack, and provides data regarding both the direction and the amount of piston displacement. A microprocessor-controlled volume-measuring device has inputs connected to the encoder, and automatically provides core sample data, in response to the signals from the encoder, at the end of a core test run.

    Abstract translation: 用于分析地质核心样品的汞泵具有垂直取向的圆柱形腔,其中下部形成汞置换室,并且与其轴向对准的上部形成样品室。 与样品室连通的压力传感器,例如应变计或固态传感器产生电压信号。 螺杆球插座在位移部分向上推动合成树脂活塞,以将汞推入样品室。 水银的位移通过联接到千斤顶的手动曲柄的电子编码器感测,并且提供关于活塞位移的方向和量的数据。 微处理器控制的体积测量装置具有连接到编码器的输入,并且在核心测试运行结束时,响应于来自编码器的信号自动提供核心采样数据。

    Method and apparatus for testing the compressibility of subterranean
samples
    4.
    发明授权
    Method and apparatus for testing the compressibility of subterranean samples 失效
    用于测试地下样品的压缩性的方法和装置

    公开(公告)号:US4562726A

    公开(公告)日:1986-01-07

    申请号:US626631

    申请日:1984-07-02

    CPC classification number: G01N15/088

    Abstract: Compressibility test apparatus and method of testing compressibility. The apparatus includes a holder having a sample chamber for holding a sample in the environment of a confining pressure and means for supplying an internal pressure to the held sample. The sample and various conduits and channels that communicate with the sample define an internal system volume. Connected in this internal system volume is an internal volume adjustment pump that is operable to vary the internal system volume in incremental steps, by which the internal pressure is reduced (or increased) in steps to increase (or reduce) the net confining pressure. As a result, changes in the sample volume as a function of changes in the net confining pressure are determined, from which the compressibility of the sample is obtained.

    Abstract translation: 压缩试验装置及其压缩性试验方法。 该装置包括具有用于将样品保持在围压环境中的样品室的保持器,以及用于向保持的样品提供内部压力的装置。 样品和与样品通信的各种导管和通道定义了内部系统体积。 连接在该内部系统体积中的是内部体积调节泵,其可操作以增量的步骤改变内部系统体积,通过该内部压力逐渐减小(或增加)内部压力以增加(或降低)净约束压力。 结果,确定作为净约束压力变化的函数的样品体积的变化,从中获得样品的可压缩性。

    Driven-capillary viscosimeter
    5.
    发明授权
    Driven-capillary viscosimeter 失效
    驱动毛细管粘度计

    公开(公告)号:US4539837A

    公开(公告)日:1985-09-10

    申请号:US641688

    申请日:1984-08-17

    CPC classification number: G01N11/08

    Abstract: A viscosimeter measures the viscosity of a fluid, such as a petroleum hydrocarbon liquid, by driving a capillary through the fluid and measuring the pressure drop across the capillary. The viscosimeter comprises a pressure cylinder, a piston within the cylinder having at least one capillary tube, and an arrangement for driving the piston at a known speed so that the fluid is displaced at a known volumetric rate through the capillary tube. Pressure sensors on either end of the cylinder measure the capillary pressure drop. In a preferred embodiment, the piston has a main body and a selector plate. The main body has a plurality of capillary tubes each of a different bore size, and the selector plate is rotatable relative to the main body by rotating a selector handle outside the cylinder. An oven enclosure permits the cylinder, and its fill of fluid, to be heated in an air bath to reservoir temperatures.

    Abstract translation: 粘度计通过驱动毛细管通过流体并测量毛细管上的压降来测量诸如石油烃液体的流体的粘度。 粘度计包括压力缸,气缸内的活塞具有至少一个毛细管,以及用于以已知速度驱动活塞的装置,使得流体以已知的体积速率通过毛细管移位。 气瓶两端的压力传感器测量毛细管压降。 在优选实施例中,活塞具有主体和选择板。 主体具有多个不同孔径的毛细管,并且通过将选择器手柄旋转到气缸外部,选择板可相对于主体旋转。 烤箱外壳允许气缸及其填充的流体在空气浴中加热至储存器温度。

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