• The development, lab analog test and field test of Model ZYF hydraulic hole packer are presented in the paper.

    介绍了ZY F型钻孔液压孔器研制实验室模拟试验现场工业性应用试验情况。

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  • The theoretical solution about cross-hole packer test, of which the aquifer is lamellar structure and the fractures are vertical, is put forward in the third bibliography.

    马国彦给出含水层层状结构其中裂隙直立的特殊情况下的交叉孔压水试验理论

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  • The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.

    分层管柱主要可洗井隔器、配注组成。

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  • The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.

    分层管柱主要可洗井隔器、配注组成。

    youdao

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