辽河油田稠油油藏侧钻井技术研究

为了解决辽河油田稠油油藏开发后期增产、稳产难的工程难题，开展了辽河油田稠油油藏侧钻技术的研究。通过对稠油侧钻井钻井技术中井位部署、侧钻层位优选技术、套管开窗工艺和侧钻井裸眼钻进工艺进行研究，完成了内管柱双向阻流尾管完井、碰压式尾管完井和筛管完井技术的研发，在此基础上形成稠油油藏侧钻技术，并对其经济效益进行评估，具有良好推广价值。该技术是辽河油田稠油油区挖潜增产、提高采收率的重要途径，具有投资少见效快的优点，值得在油田大面积推广。

RE-ENTRY TECHNIQUE OF HEAVY OIL RESERVOIR IN LIAOHE OILFIELD

The most petroleum deposit is heavy oil and the formation cementing is unconsolidated in Liaohe oilfield. Through the exploration and development of 40 years', the production of oilfield comes into middle-later period, the situation to increasing reserves and stable yields is out of condition. During heavy oil development, how to raise recovery rate, increase oil production and reduce the production cost has became very important. The re-entry technique for heavy oil wells is one of the effective approaches to increase the recovery efficiency of heavy oil reservoir. This technique has been used widely. The thesis mainly introduced the re-entry techniques used for heavy oil wells, and carried out the analysis about economic benefit.