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    • 9. 发明申请
    • Composition for controlling wellbore fluid and gas invasion and method for using same
    • 用于控制井筒流体和气体入侵的组合物及其使用方法
    • US20040040711A1
    • 2004-03-04
    • US10297752
    • 2003-03-13
    • Brian Henry Tomlinson
    • E21B033/13
    • C09K8/46C04B9/02C04B28/32C04B40/0092C04B2201/10C04B2201/20C09K8/48C09K8/487C09K8/493C09K8/5045Y10S507/904C04B14/06C04B14/062C04B14/26C04B14/28C04B14/36C04B22/0026C04B22/148C04B22/16C04B40/00C04B2103/20C04B9/20
    • 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.
    • 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。
    • 10. 发明授权
    • Composition for controlling wellbore fluid and gas invasion and method for using same
    • 用于控制井筒流体和气体侵入的组合物及其使用方法
    • US06664215B1
    • 2003-12-16
    • US09588422
    • 2000-06-06
    • Brian H. Tomlinson
    • Brian H. Tomlinson
    • C09K300
    • C09K8/46C04B9/02C04B28/32C04B40/0092C04B2201/10C04B2201/20C09K8/48C09K8/487C09K8/493C09K8/5045Y10S507/904C04B14/06C04B14/062C04B14/26C04B14/28C04B14/36C04B22/0026C04B22/148C04B22/16C04B40/00C04B2103/20C04B9/20
    • 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.
    • 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。