Methods Using Viscoelastic Surfactant Based Abrasive Fluids for Perforation and Cleanout
    2.
    发明申请
    Methods Using Viscoelastic Surfactant Based Abrasive Fluids for Perforation and Cleanout 审中-公开
    使用基于粘弹性表面活性剂的研磨剂用于穿孔和清洗的方法

    公开(公告)号:US20160341017A1

    公开(公告)日:2016-11-24

    申请号:US14717588

    申请日:2015-05-20

    Abstract: A method includes positioning at least one fluid nozzle disposed upon a distal end of a fluid conduit in a cased borehole penetrating a subterranean formation at a target zone of the subterranean formation. An abrasive laden fluid is then continuously pumped through the fluid conduit and through the at least one fluid nozzle at a pressure adequate to form at least one slot through the cased borehole. The abrasive fluid contains an aqueous medium, an abrasive, an optional acid, and a viscoelastic surfactant. While continuously pumping the abrasive fluid through the fluid conduit, the wellbore may be cleaned by returning debris and material generated in the operation to the surface with the fluid. In some instances, a portion of the forming a slot through the cased borehole is conducted simultaneous with the cleanout of the wellbore.

    Abstract translation: 一种方法包括将设置在流体导管的远端上的至少一个流体喷嘴定位在穿过地下地层的目标区域的地下地层的套管钻孔中。 然后将磨料填充的流体连续地泵送通过流体导管并通过至少一个流体喷嘴,压力足以形成穿过套管钻孔的至少一个槽。 研磨液含有水性介质,研磨剂,任选的酸和粘弹性表面活性剂。 在持续地将磨料流体泵送通过流体导管时,可以通过将流体中产生的碎屑和材料返回到表面来清洁井筒。 在一些情况下,形成穿过套管钻孔的槽的一部分与井眼的清洁同时进行。

    Methods for Treating Subterreanean Formations
    4.
    发明申请
    Methods for Treating Subterreanean Formations 审中-公开
    治疗亚硝酸盐组的方法

    公开(公告)号:US20150166871A1

    公开(公告)日:2015-06-18

    申请号:US14108323

    申请日:2013-12-16

    Abstract: Cement compositions for well cementing operations comprise an isocyanate compound and solid particles. The solid particles are present in at least three distinct particle size groups. The compositions may further comprise a blocking agent and solvents such as polyols, hydrocarbon solvents, diesel or water. The compositions are particularly useful in the context of remedial cementing, which may be squeeze cementing or plug cementing.

    Abstract translation: 用于固井操作的水泥组合物包括异氰酸酯化合物和固体颗粒。 固体颗粒存在于至少三个不同的粒度组中。 组合物还可以包含封闭剂和溶剂如多元醇,烃溶剂,柴油或水。 组合物在补救固井的情况下是特别有用的,其可以是挤压固井或栓塞固井。

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