定向钻井技术在焉耆盆地的推广应用

Application of Directional Well Drilling Techniques in Yanqi Basin

定向钻井技术已是一项成熟的钻井工艺技术，河南油田在新疆焉耆盆地开展了新区定向井和丛式井钻井技术的推广应用工作，取得了较好的经济效益和社会效益，同时，在推广应用过程中也获得了一定的经验教训。本文总结出了焉耆盆地定向井丛式井井眼轨迹规律，讨论了定向井井身剖面的设计和优选，综述了各种底部钻具组合及钻井参数对井眼轨迹的影响，获得了对定向井、丛式井钻井技术推广应用的新认识，并提出了对今后开展定向钻井工作的建议。

Djrectional well and cluster wells drilling techniquesare applied in Yanqi Basin of Henan Oilfield,and haveyielded notable economic and social benefits. Someexperience and lessons are gained in application. Thispaper summerizes the rules to control the trajectories ofdirectional wells and cluster wells in Yanqi Basin and thenew understanding of application of these drillingtechniques which can be used as a reference in applicationof other new drilling technologies.