随着加密井和侧钻井数量不断增加，侧钻绕障井越来越多，其设计和施工难度也越来越大。

With the increase of infill and sidetrack Wells, more and more sidetrack Wells require more bypassing obstacles and become more difficult to be planned and drilled.

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二雏绕障定向井具有容易施工和钻井成本低等特点。

To bypass obstacles, a 2-D directional well, which can be drilled easily and has the low drilling cost, has many advantages.

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