A selective plugging agent was prepared from polyhydroxy - compound as gelling material and cross -linking agent BF.
用多羟基化合物作成胶剂与交联剂BF配制了选择性堵水剂。
A new kind of oil soluble polymer JHXD as selective water shutoff agent was prepared based on the requirement of selective plugging in water injected oilfields.
针对注水开发油田选择性堵水的急需，研制了一类新型油溶性聚合物选堵剂JHXD。
The results showed that, the permeability of water phase decreased 85% at least, the permeability of oil decreased no more than 25%. PDZ-1 has high selective plugging and a nice flushing resistance.
结果表明，该堵剂可使水相渗透率下降85%以上，油相渗透率下降25%以下，具有明显的选择性封堵作用及优良的耐冲刷性。
According to the casing strings of different sizes, converting zone technology including chemical plugging and packer setting is matched during the process of selective zone production.
针对不同尺寸的套管完井，在侧钻井分层开采的过程中的配套了封堵和卡封等配套的改层工艺。
Chemistry shuts off the water includes the selective water plugging and the non-selective water plugging.
化学堵水又包括选择性堵水和非选择性堵水。
Chemistry shuts off the water includes the selective water plugging and the non-selective water plugging.
化学堵水又包括选择性堵水和非选择性堵水。
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