Profile control and plug removal integrated operation system and method for polymer flooding and injection well
一种聚合物、驱注的技术,应用在化学仪器和方法、钻孔的组合物、开采流体等方向,能够解决总施工时间短、调剖剂难免进入、注液速度快等问题,达到避免二次伤害、增加吸入解堵工作液量、提升解堵效果的效果
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[0038] The technical solutions for realizing the object of the present invention are further described below through specific embodiments. It should be noted that the technical solutions claimed in the present invention include but are not limited to the following embodiments.
[0039] As a specific embodiment of the present invention, this example describes an integrated operation method for profile control and plugging removal of polymer flooding and polywell, specifically, including the following steps:
[0040] In the core production steps, the quartz sand epoxy resin cementation method is used to make heterogeneous core test blocks in two layers of high permeability and low permeability. The external dimensions of the core test blocks are: width × height × length = 4.5cm × 4.5cm × 30cm, among which, the permeability K of the high, medium and low layers in the high permeability core test block g 4500 / 2500 / 500×10 respectively -3 μm 2 , the permeability K of the high, medi...
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