Method for laboratory measurement of capillary pressure in reservoir rock
    1.
    发明授权
    Method for laboratory measurement of capillary pressure in reservoir rock 有权
    储层岩石毛细管压力实验室测量方法

    公开(公告)号:US06415649B1

    公开(公告)日:2002-07-09

    申请号:US09710206

    申请日:2000-11-10

    IPC分类号: G01N1508

    CPC分类号: G01N15/082

    摘要: An effective laboratory method for developing complete capillary pressure curves involves directly measuring an oil/water saturation profile within a cylindrical porous rock core plug. The saturation profile, which includes a free water level, is established under a known pressure gradient induced by centrifuging and is measured using image mapping techniques. The free-water level is established at a desired position within the length of the core plug and provides a reference position of zero capillary pressure to facilitate measurement of both positive and negative capillary pressures.

    摘要翻译: 开发完整毛细管压力曲线的有效实验室方法包括直接测量圆柱形多孔岩心塞中的油/水饱和度曲线。 包括自由水位的饱和曲线在已知的通过离心诱导的压力梯度下建立,并使用图像映射技术测量。 自由水位建立在芯塞长度内的所需位置,并提供零毛细管压力的参考位置,以便于测量正和负毛细管压力。

    Method for laboratory measurement of capillary pressure in reservoir rock
    2.
    发明授权
    Method for laboratory measurement of capillary pressure in reservoir rock 失效
    储层岩石毛细管压力实验室测量方法

    公开(公告)号:US06178807B2

    公开(公告)日:2001-01-30

    申请号:US09048136

    申请日:1998-03-25

    IPC分类号: G01N1308

    CPC分类号: G01N15/082

    摘要: An effective laboratory method for developing complete capillary pressure curves involves directly measuring an oil/water saturation profile within a cylindrical porous rock core plug. The saturation profile, which includes a free water level, is established under a known pressure gradient induced by centrifuging and is measured using image mapping techniques. The free-water level is established at a desired position within the length of the core plug and provides a reference position of zero capillary pressure to facilitate measurement of both positive and negative capillary pressures.

    摘要翻译: 开发完整毛细管压力曲线的有效实验室方法包括直接测量圆柱形多孔岩心塞中的油/水饱和度曲线。 包括自由水位的饱和曲线在已知的通过离心诱导的压力梯度下建立,并使用图像映射技术测量。 自由水位建立在芯塞长度内的所需位置,并提供零毛细管压力的参考位置,以便于测量正和负毛细管压力。

    Lubricant antiwear additives containing sulfur and boron
    4.
    发明授权
    Lubricant antiwear additives containing sulfur and boron 失效
    含硫和硼的润滑剂抗磨添加剂

    公开(公告)号:US4115286A

    公开(公告)日:1978-09-19

    申请号:US802082

    申请日:1977-05-31

    摘要: Lubricating compositions incorporating therein at least one mercapto-substituted boron-containing compound selected from 2-hydroxy-4-(mercaptohydrocarbyl)-1,3,2-dioxaborolanes and alkylammonium bis[(mercaptohydrocarbyl)ethylenedioxy]borates. Novel 2-hydroxy-4-(mercaptohydrocarbyl)-1,3,2-dioxaborolanes and novel alkylammonium bis[(mercaptohydrocarbyl)ethylenedioxy]borates and methods for preparing these compositions of matter are provided. Alkylammonium bis[(mercaptohydrocarbyl)ethylenedioxy]borates are prepared from an intermediate chemical compound that is a novel hydrogen bis[(mercaptohydrocarbyl)ethylenedioxy]borate for which a method of preparation is also provided.

    摘要翻译: 其中加入至少一种选自2-羟基-4-(巯基烃基)-1,3,2-二氧杂硼杂环戊烷和烷基铵双[(巯基烃基)亚乙二氧基]硼酸盐的巯基取代的含硼化合物的润滑组合物。 提供新的2-羟基-4-(巯基烃基)-1,3,2-二氧杂硼杂环戊烷和新的烷基铵双[(巯基烃基)亚乙基二氧基]硼酸盐和制备这些组合物的方法。 烷基铵双[(巯基烃基)亚乙基二氧基]硼酸盐由中间体化合物制备,中间体化合物是还提供制备方法的新的双[(巯基烃基)亚乙基二氧基]硼酸盐。

    Method for determining relative wettability
    8.
    发明授权
    Method for determining relative wettability 失效
    确定相对润湿性的方法

    公开(公告)号:US5162733A

    公开(公告)日:1992-11-10

    申请号:US666163

    申请日:1991-02-26

    IPC分类号: G01R33/44

    CPC分类号: G01R33/44 G01N24/082

    摘要: A method is provided for determining the relative wettability of a sample of a porous media with respect to a first liquid and a second liquid. The method includes the steps of providing the sample at a partially saturated state with respect to the first liquid; obtaining a first nuclear magnetic resonance (NMR) parameter value for the partially saturated sample; exposing the partially saturated sample to the second liquid for a predetermined period of time, wherein the second liquid is treated with a paramagnetic species such that the presence of the second liquid in the sample does not substantially affect the NMR signal response of the sample; obtaining a second NMR parameter value for the sample after exposure to the second liquid; and determining the relative wettability by comparing the first and second NMR parameter values.

    摘要翻译: 提供了一种用于确定多孔介质样品相对于第一液体和第二液体的相对润湿性的方法。 该方法包括以下步骤:提供相对于第一液体处于部分饱和状态的样品; 获得部分饱和样品的第一个核磁共振(NMR)参数值; 将部分饱和的样品暴露于第二液体预定的时间段,其中第二液体用顺磁性物质处理,使得样品中第二液体的存在基本上不影响样品的NMR信号响应; 在暴露于第二液体之后获得样品的第二个NMR参数值; 以及通过比较第一和第二NMR参数值来确定相对润湿性。