Sidetracking slimhole drilling technology is successfully applied in Zhongyuan oilfield in order to contain the well condition worsen,trap the resource potential and increase the penetration rate.

• 在小井眼开窗侧钻工艺中成功应用复合钻井技术,钻井速度提高了66%25,选择合理的钻具组合可对井眼轨迹进行有效的控制。