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    • 3. 发明授权
    • Slurry mixing apparatus
    • 浆料混合装置
    • US5026168A
    • 1991-06-25
    • US452043
    • 1989-12-18
    • Leslie N. BerrymanHerbert J. HorinekMax L. PhillippiDavid A. PruchaVincent G. ReidenbachStanley V. Stephenson
    • Leslie N. BerrymanHerbert J. HorinekMax L. PhillippiDavid A. PruchaVincent G. ReidenbachStanley V. Stephenson
    • B01F7/16B01F13/10E21B43/26E21B43/267
    • B01F13/1027B01F7/1675E21B43/26E21B43/267
    • A mixing apparatus is provided for mixing slurries, particularly high density, high viscosity fracturing fluid slurries containing a large proportion of proppant material. A mixing tub has a generally round horizontal cross-sectional shape. A relatively large, low-speed rotating agitator is utilized to mix the slurry. The design of the agitator is such that a radially inwardly rolling toroidal shaped slurry flow zone is created adjacent the upper surface of the slurry within the tub. A stream of clean fracturing fluid is introduced into the tub near the center of the toroidal shaped flow zone. Dry proppant material is introduced into the tub and carried by the radially inwardly rolling flow into contact with the clean fracturing fluid. Foraminous baffles, preferably constructed from expanded metal sheets, are radially oriented within the tub to reduce rotational motion of the slurry within the tub without causing dropout of proppant from the slurry. A double suction vertical sump pump is utilized to pump the slurry from the tub.
    • 提供混合装置,用于混合含有大量支撑剂材料的浆料,特别是高密度,高粘度的压裂液浆料。 混合槽具有大致圆形的横截面形状。 使用相对较大的低速旋转搅拌器来混合浆料。 搅拌器的设计使得在桶内的浆料的上表面附近产生径向向内滚动的环形浆料流动区域。 干净的压裂液流在环形流动区的中心附近被引入到桶中。 将干燥的支撑剂材料引入桶中并通过径向向内滚动的流动与干净的压裂液接触。 优选地由膨胀的金属板构成的多孔挡板在桶内径向地取向,以减少桶内的浆料的旋转运动,而不会导致支撑剂从浆料中脱落。 采用双吸立式油底壳泵从桶中抽出泥浆。