Method and apparatus electrostatically controlling the viscosity and other properties of ceramic compositions
    233.
    发明授权
    Method and apparatus electrostatically controlling the viscosity and other properties of ceramic compositions 失效
    方法和设备静电控制陶瓷组合物的粘度和其他性能

    公开(公告)号:US07374331B1

    公开(公告)日:2008-05-20

    申请号:US11060823

    申请日:2005-02-18

    Inventor: David M. Goodson

    Abstract: A method and apparatus for reducing the viscosity of a fluidic cementitious mixture, the apparatus including a high voltage source, first and second spaced electrode members electrically connected to the high voltage source and (when energized) define an electrostatic field therebetween. The positioning of particulate cementitious material within the electrostatic field imparts like charges to the cementitious particles. By establishing such an electric field and positioning cementitious particles within the field, the particles may be charged prior to mixing into a hydrated cementitious slurry. Such charging decreases the viscosity and/or enhances the flowability of the hydrated cementitious slurry.

    Abstract translation: 一种用于降低流体性水泥混合物的粘度的方法和装置,该装置包括高电压源,电连接到高电压源的第一和第二隔开的电极构件(当被激励时)限定了它们之间的静电场。 颗粒状水泥质材料在静电场内的定位对于水泥质颗粒来说就像电荷一样。 通过建立这样的电场并将水泥质颗粒定位在场内,可以在混合成水合水泥质浆料之前将颗粒带电。 这种装料降低粘度和/或提高水合水泥浆料的流动性。

    Composition for controlling wellbore fluid and gas invasion and method for using same
    238.
    发明申请
    Composition for controlling wellbore fluid and gas invasion and method for using same 有权
    用于控制井筒流体和气体入侵的组合物及其使用方法

    公开(公告)号:US20040040711A1

    公开(公告)日:2004-03-04

    申请号:US10297752

    申请日:2003-03-13

    Abstract: The disclosure is directed to a composition for controlling wellbore fluid and gas invasion including methods for using said composition. The composition of the invention is a flowable slurry preferably comprising about 70 to 30% by weight of magnesium oxychloride and about 70 to 30% by weight of water. The composition is a flowable slurry at composition temperatures below about 60null C. and sets to form a substantially solid mass upon reaching a composition temperature of about 60-68null C. The phase transition is rapid, thereby limiting or avoiding formation of gel states which contribute to incomplete wellbore seals. The rapid set of the slurry further avoids invasive contamination of earthen formations surrounding the wellbore. The composition has a near-linear relationship between the time required for the phase transition to occur and the composition temperature at which the phase transition occurs. This advantageous property permits the composition set time to be accurately determined and modified as required through the addition of accelerators and inhibitors. The phase transition occurs predictably at high pressures typical of those encountered in wellbore operations. Additives may be included to modify the properties of the composition. The method includes use of the composition to control the loss of fluids and gases from the wellbore.

    Abstract translation: 本公开涉及用于控制井筒流体和气体侵入的组合物,包括使用所述组合物的方法。 本发明的组合物是可流动浆料,优选包含约70至30重量%的氯氧化镁和约70至30重量%的水。 该组合物是组合物温度低于约60℃的可流动浆料,并且当达到约60-68℃的组成温度时,该组合物形成基本上固体的质量。相变是快速的,从而限制或避免形成凝胶状态 这有助于不完整的井眼密封。 快速的浆料进一步避免了井筒周围的土层的侵入性污染。 组合物在发生相变所需的时间与发生相变的组成温度之间具有近似线性关系。 这种有利的性质允许通过加入促进剂和抑制剂根据需要精确地确定和修饰组合物设定时间。 在井眼操作中遇到的典型的高压下,相变可预测地发生。 可以包括添加剂以修饰组合物的性质。 该方法包括使用该组合物来控制来自井筒的流体和气体的损失。

    Composition for controlling wellbore fluid and gas invasion and method for using same
    240.
    发明授权
    Composition for controlling wellbore fluid and gas invasion and method for using same 有权
    用于控制井筒流体和气体侵入的组合物及其使用方法

    公开(公告)号:US06664215B1

    公开(公告)日:2003-12-16

    申请号:US09588422

    申请日:2000-06-06

    Abstract: The disclosure is directed to a composition for controlling wellbore fluid and gas invasion including methods for using said composition. The composition of the invention is a flowable slurry preferably comprising about 70 to 30% by weight of magnesium oxychloride and about 70 to 30% by weight of water. The composition is a flowable slurry at composition temperatures below about 60° C. and sets to form a substantially solid mass upon reaching a composition temperature of about 60-68° C. The phase transition is rapid, thereby limiting or avoiding formation of gel states which contribute to incomplete wellbore seals. The rapid set of the slurry further avoids invasive contamination of earthen formations surrounding the wellbore. The composition has a near-linear relationship between the time required for the phase transition to occur and the composition temperature at which the phase transition occurs. This advantageous property permits the composition set time to be accurately determined and modified as required through the addition of accelerators and inhibitors. The phase transition occurs predictably at high pressures typical of those encountered in wellbore operations. Additives may be included to modify the properties of the composition. The method includes use of the composition to control the loss of fluids and gases from the wellbore.

    Abstract translation: 本公开涉及用于控制井筒流体和气体侵入的组合物,包括使用所述组合物的方法。 本发明的组合物是可流动浆料,优选包含约70至30重量%的氯氧化镁和约70至30重量%的水。 该组合物是组合物温度低于约60℃的可流动浆料,并且当达到约60-68℃的组成温度时,该组合物形成基本上固体的质量。相变是快速的,从而限制或避免形成凝胶状态 这有助于不完整的井眼密封。 快速的浆料进一步避免了井筒周围的土层的侵入性污染。 组合物在发生相变所需的时间与发生相变的组成温度之间具有近似线性关系。 这种有利的性质允许通过加入促进剂和抑制剂根据需要精确地确定和修饰组合物设定时间。 在井眼操作中遇到的典型的高压下,相变可预测地发生。 可以包括添加剂以修饰组合物的性质。 该方法包括使用该组合物来控制来自井筒的流体和气体的损失。

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