旋转导向钻井技术的应用及探讨  

On Application of Rotary Steerable Drilling Technology

作　　者：李增科[1] 赵哲[1] 

机构地区：[1]中石化江汉石油工程有限公司技术装备处,湖北潜江433124

出　　处：《江汉石油职工大学学报》2015年第2期25-27,共3页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：旋转导向钻井技术可以有效提高钻井速度,解决滑动导向方式带来的井身质量差、井眼轨迹不规则、净化效果差等问题;还具有井下闭环自动导向的能力,大大提高了定向钻井效率和井眼轨迹控制的精度;能有效解决定向钻进中"托压"问题,提高钻井安全性;能够钻出更符合设计要求的轨迹。在江汉油田,共有6口井应用了旋转导向钻井技术。实践表明旋转导向钻井技术对于复杂工艺井具有提高定向钻井效率的作用;适合上部防斜要求难度高的地层,下部在长井段稳斜及长水平段延伸钻井中具有明显优势;能更加精确高效地进行工程和地质导向。在现场运用中,需要对底部钻具组合进优化,进一步提高实际施工中的造斜率,以满足各种井型需要;还应加快推进国产化进程。Rotary steerable drilling technology can increase drilling speed to overcome the troubles of poor -quality wellbore ,irregular well track as well as bad purifying effect brought in by slide -guide mode .It can also raise great‐ly directional drilling efficiency and well track control accuracy due to its downhole closed -loop and self -guided function .In addition ,it can solve the problem of backing pressure in the course of directional drilling to boost drill‐ing safety .Six wells have used it in Jianghan Oilfield .Site application shows that it plays a role in improving direc‐tional drilling efficiency of complex technology w ells ;it is suitable for upper layer w here it is difficult to control devia‐tion and it can carry through geosteering more accurately and efficiently .

关 键 词：旋转导向钻井技术 定向钻井 井眼轨迹控制 江汉油田 

分 类 号：TE243[石油与天然气工程—油气井工程]