Practice testifies that practice of this kind of reverse well track type project is feasible for the drilling and development of short displacement, the shallow vertical depth horizontal well.

实践证明，对于短位移、浅垂深的水平井钻进开发，实施这种“反勾”型方案是切实可行的。

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TK908DH is the first dual branch horizontal well in Tahe Oilfield. It is the deepest in vertical depth in China.

TK 90 8dh井是塔河油田第一口双分支水平井，同时也是国内垂深最深的一口双分支水平井。

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