concrete lining
... 最后涂的水泥层 final coating cement 水泥衬层 concrete lining 水泥找平层 coat ...
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带眼衬管一般用于小直径井筒或在不需对衬管注水泥(如层位封隔所要求)的储层内的侧钻。
Perforated liners typically are used in small-diameter wellbores or in sidetracks within the reservoir where there is no need for the liner to be cemented in place, as is required for zonal isolation.
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