The problems of hole trajectory control in cluster slim holes are studied emphatically in this paper.

重点探讨了小眼丛式井井眼轨迹控制问题.

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By comparing with normal well bore, the economic efficiency of slim hole drilling was evaluated.

通过与常规井眼对比, 评价了小眼井钻井技术经济效益.

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The liner bump - pressure cementing technique of slot sidetracking slim hole is introduced in the paper.

文中介绍了侧钻小眼井尾管碰压井技术.

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It discussed problems about wellbore structure, BHA, bIt'selection, drilling parameters and so on.

探讨了小眼井井身结构 、 钻具组合 、 钻头选型 、 钻井参数等问题.

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