利用停关、低效井实施老井侧钻,其条件包括油藏、井身及技术经济等3个方面。侧钻效益的好坏与油藏类型、侧钻目标有着很大关系,侧钻断块油层、挖掘构造高部位剩余油成功率高,边底水、高渗透油藏侧钻效果好。实践表明,老井侧钻是提高江苏复杂小断块油藏开发效果,降低投资、提高效益的一项重要手段。 The use of shutdown, inefficient wells to implement the old sidetrack, the conditions include the reservoir, well and technical and economic aspects of the three. The benefit of sidetrack drilling is closely related to the reservoir type and sidetrack drilling target. The sidetrack drilling fault block reservoir has high success rate of residual oil in the high part of excavation structure, and the sidetrack and high permeability reservoir have good sidetrack drilling effect. Practice shows that the old sidetrack drilling is to improve the complex small fault block reservoir development in Jiangsu Province, reduce investment and improve efficiency is an important means.