Considering the status of separate layer water injection in directional well, the injection tools and pipe string are developed and collocated reasonably.

针对定向井分层注水的现状，对定向井分注工具和分注管柱进行了研制和合理配置。

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The distribution of separate layer injection intensity appears lognormality, and the variable coefficient is one constant.

分层注水的层段注水强度服从于对数正态分布，并且其变异系数为一常数。

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The test of the actual working condition of individual layer, that is, the test of water injection amount and pressure of individual layer, has been realized by means of separate layer test.

分层测试实现了实际工况各单层分测：即测分层注入量和分层压力。

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