后五家户复杂深井钻井提速难点及技术探索

Difficulties of Drilling Speed Increasing for Deep Well in Complex Geological Conditions

梨树断陷后五家户气田处于勘探开发初期,目的层埋藏深,后续生产井设计井深有加深趋势。通过分析该区域地质情况,从地层压力系统复杂、可钻性差等钻井技术难点出发,对井身结构的设计、钻头、动力钻具的使用等方面进行提速效果的应用分析与评价,提出适合该地区钻井提速的措施及建议。

Houwujiahu gas field of Lishu fault depression is in the early stage of exploration and development,because of the deeply buried target layer,the design depth of follow-up production well has deepening trend.Based on the analysis on geological conditions in this area and considering the technical difficulties of drilling,this paper makes the application analysis and evaluation of drilling speed increasing in wellbore structure design and the use of drill bit and dynamic drilling tools,and puts forward measures and suggestions for the drilling speed increasing suitable for this area.