摘要
超深小井眼机械钻速低和井斜控制难度大等问题制约了西部地区深层油气藏的开发。在分析国内外防斜打快技术的研究及应用现状基础上,提出减速涡轮防斜打快技术,并研制小尺寸减速涡轮钻具。现场试验表明:减速涡轮复合钻井技术提速效果明显,与试验井TH12509上下邻井段转盘钻井相比,机械钻速提高90%～150%;与邻井同井段转盘钻井相比,机械钻速提高1.2～1.7倍,井斜角从入井时的2.66°(5.89 km)降至0.33°(6.225 km),为西部超深小井眼防斜打快提供了一种新的技术途径。
The problems of low penetration rate of super-deep slim hole drilling and difficulty of deviation control seriously restrict the development of deep reservoirs in Western China.By analyzing the domestic research and application of deviation control and drilling fast technology,the decelerating turbine drilling technology to control deviation and increase drilling speed was introduced.And then,small size decelerating turbine tools were developed.The results of field testing show that the decelerating turbine compound drilling technology has obvious effect on increasing drilling speed.The experimental well TH12509 was drilled by decelarating turbine compound drilling tools,whose drilling rate is increased by 90%-150% compared to rotary drilling of adjacent section,and by 1.2-1.7 times compared to adjacent well.The deviation angle decreases from 2.66°（5.89 km） to 0.33°（6.225 km）.This technology provides a new way to deviation control and drilling fast in super-deep slim hole wells in Western China.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第1期68-71,共4页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家'863'计划项目(2006AA06A109)
中原油田博士后基金项目(2009301博)
关键词
钻井
超深小井眼
防斜打快
减速涡轮
oil well drilling
super-deep slim hole well
deviation control and drilling fast
decelerating turbine
