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    • 1. 发明授权
    • Method for injecting fluid into a wellbore
    • 将流体注入井眼的方法
    • US5544705A
    • 1996-08-13
    • US372459
    • 1995-01-13
    • Richard R. JonesWilliam N. Wilson
    • Richard R. JonesWilliam N. Wilson
    • E21B27/02E21B33/16E21B34/06
    • E21B34/06E21B27/02E21B33/16
    • A method for injecting fluid, such as an accelerator, into a wellbore comprises storing the fluid in a reservoir, locating the reservoir downhole in the wellbore, and then transferring the fluid from the reservoir into the wellbore. More particularly, one embodiment of the method comprises storing the fluid in a reservoir in a plug, pumping the plug down casing in a wellbore, and transferring the fluid at the bottom of the wellbore via a venturi effect. Another embodiment of the method comprises storing the fluid in a reservoir integrated into the wall of a portion of casing, setting the casing in the wellbore, and then transferring the fluid via a venturi effect from the reservoir into the annulus defined between the casing and the wellbore.
    • 将诸如加速器的流体喷射到井眼中的方法包括将流体存储在储存器中,将储存器在井下定位在井筒中,然后将流体从储存器传送到井筒中。 更具体地,该方法的一个实施例包括将流体存储在塞子中的储存器中,将塞子套管泵送到井眼中,并且经由文丘里效应将井筒的底部的流体转移。 该方法的另一实施例包括将流体存储在集成到壳体的一部分的壁中的储存器中,将壳体设置在井眼中,然后将流体经由文丘里效应从储存器传送到壳体和 井筒
    • 9. 发明授权
    • Well cementing in permafrost
    • 在永久冻土中固井
    • US4176720A
    • 1979-12-04
    • US928648
    • 1978-07-27
    • William N. Wilson
    • William N. Wilson
    • C04B28/06C09K8/46E21B33/14
    • C04B28/06C09K8/46C04B2111/76Y10S166/901
    • A process for cementing a string of pipe in the permafrost region of a borehole of a well wherein aqueous drilling fluid actually used in drilling the wellbore in the permafrost region of a wellbore is employed. The drilling fluid contains or is adjusted to contain from about 2 to about 16 volume percent solids. Mixing with the drilling fluid (1) an additive selected from the group consisting of lignosulfonate, lignite, tannin, and mixtures thereof, (2) sufficient base to raise the pH of the drilling fluid into the range of from about 9 to about 12, and (3) cementitious material which will harden in from about 30 to about 40 hours at 40.degree. F. The resulting mixture is pumped into the permafrost region of a wellbore to be cemented and allowed to harden in the wellbore. There is also provided a process for treating an aqueous drilling fluid after it has been used in drilling the wellbore in permafrost, and a cementitious composition for cementing in a permafrost region of a wellbore.
    • 一种用于在井的钻孔的多年冻土区域中固定管道的方法,其中采用实际用于钻井中多孔冻土地层中的井筒的钻井液。 钻井液含有或被调整为含有约2至约16体积%的固体。 与钻井液(1)混合,选自由木质素磺酸盐,褐煤,单宁及其混合物组成的组的添加剂,(2)足够的碱以将钻井液的pH提高到约9至约12, 和(3)将在40°F下硬化约30至约40小时的水泥质材料。将所得混合物泵送入井眼的多年冻土区域以进行胶结并使其在井眼中硬化。 还提供了一种在钻井液用于钻井永久冻土中的井筒之后处理含水钻井液的方法,以及用于在井筒的永久冻土区域中固井的水泥质组合物。