浅析煤层气参数井取芯段井斜超标原因及预防措施--基于平参2井  

Analysis on Reasons and Preventive Measures of Excessive Deviation in Coring Section of Coalbed Methane Parameter Wells--Based on Pingcan No.2 Well

作　　者：马俊强 李飞 张光伟 MA Junqiang;LI Fei;ZHANG Guangwei(Exploration institute of Guangdong Coal Geology Bureau,China National Administration of Coal Geology,Guangdong 510440)

机构地区：[1]中国煤炭地质总局广东煤炭地质局勘查院,广东510440

出　　处：《中国煤层气》2022年第3期21-25,共5页China Coalbed Methane

摘　　要：文章基于平参2井施工时出现的问题,对井斜超标原因进行了分析:认为取芯工艺的特殊性、地层原因、钻井工艺等是导致井斜超标的主要原因;目的层间隔取芯、增加钻具刚度、增强钻井液与地层配伍性等方法是参数井防斜的有效措施。Based on the problems encountered during the construction of Pingcan No.2 Well,this paper analyzes the reasons that cause the excessive deviation.it is proposed that the particularity of the coring process,the formation and the drilling technology are the main reasons.Methods such as interval coring in the target layer,increasing the rigidity of the drilling tool and enhancing the compatibility of the drilling fluid with the formation are effective to prevent this problem for parametric wells.

关 键 词：参数井 绳索取芯 井斜超标 全角变化率 井斜控制 

分 类 号：TE24[石油与天然气工程—油气井工程]