Casing corrosion is very serious in ChangQing oil field. The main treating is top water exclusion technology.
长庆油田存在严重的套管腐蚀损坏，采取的主要治理措施是隔水采油工艺技术。
The acrylamide kind polymers have a very wide application in oil field, like drilling cementing exclusion of water compressive fracture and flooding oil etc.
丙烯酰胺类聚合物在油田各领域应用极广，无论是钻井、固井、堵水、压裂还是驱油等多个方面都有应用。
Air exclusion is a natural gathering place installed in the air exclusion can automatically turn on to exclude air and automatically shut down when the water passes through.
空气排除器安装在空气自然聚集处，排除器能够自动开启以排除空气，并在水通过时自动关闭。
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