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xingchen0618:1.正反洗井的的定义我就不说多说了!2.正反洗不同点: a.正洗井对井底造成的回压较小,但洗井工作液在油套环空中上返的速度稍慢,对套管壁上脏物的冲洗力度相对小些; b.反洗 .. (2010-10-31 13:54)
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