石油钻采工艺Issue(1)：19-22,4.
吐哈盆地北部山前带深层致密气藏水平井钻井技术
Horizontal well drilling technique for tight gas reservoirs in Tuha Basin
摘要
Abstract
Tight gas resource is promising in North Tuha Basin, and horizontal well is an key method for effectively develop tight gas reservoirs. However, the angle of bedding is large, leading to difficult control of wellbore quality of lateral sections. Large section of developed coal formation and short lap makes weak wellbore stability and frequent happening of collapse. Deep formation have low drillability and rock breaking efficiency of the bit is low for lateral sections, bring to lengthy drilling period. To solve the difficulties above, through optimizing wellbore scheme of the horizontal well, wellbore trajectory, and drilling fluid, and conducting personal drill-ing bit, directional drilling for coal formation, and small-hole long lateral-section steering drilling technique, a series of fast horizontal well drilling techniques for tight gas reservoirs are formed. The aim of improving penetration rate and effectively shortening drilling period are achieved, which supplies powerful technical support for the exploration and development of tight sand gas reservoir.关键词
致密气藏/北部山前带/巨厚煤层/水平井Key words
tight gas reservoir/north foothill belt/thick coal formation/horizontal well分类
能源科技引用本文复制引用
钱峰,杨立军..吐哈盆地北部山前带深层致密气藏水平井钻井技术[J].石油钻采工艺,2013,(1):19-22,4.基金项目
中国石油天然气股份有限公司重大科技专项“致密气藏开发重大工程技术研究”(编号:2010E-23)部分成果 （编号:2010E-23）
