陇东、陕北地区丛式井钻井技术实践

Technological Practice of the Drilling of Series Well in Longdong and Shanbei Region

陇东、陕北地区地理条件复杂，该区广泛采用定向井、丛式井技术进行开发。针对该地区地层特点，对丛式井设计、防碰及轨迹控制技术进行了综合分析，探讨了复杂地层条件下应用单稳定器钻具组合进行三段制定向井轨迹控制技术，经２００ 余口定向井的实践，取得了良好应用效果，对类似地区的钻井具有一定的指导作用。

The geographical conditions of Longdong and Shanbei are very complicate,the directional drilling and series well drilling technology are widely applied in the petroleum derelopment,In the light of the regional strata characteristics.It carries out a synthetic analysis on the design of series well,collision protecting and trail controlling technology.It got a good results after some practice.