漂浮下套管技术在页岩气超长水平井中的应用  

Application of Floatation Casing Running-in Technology in Ultra-long Horizontal Shale Gas Wells

作　　者：康蕴秋 赵宗元 顾雅頔 KANG Yunqiu;ZHAO Zongyuan;GU Yadi(Technical Service Center for Shale Gas Production,Sinopec Oilfield Service Jianghan Corporation,Wuhan,Hubei 430206,China;Drilling Company II,Sinopec Oilfield Service Jianghan Corporation,Wuhan,Hubei 430042,China)

机构地区：[1]中石化江汉石油工程有限公司页岩气开采技术服务公司,湖北武汉430206 [2]中石化江汉石油工程有限公司钻井二公司,湖北武汉430042

出　　处：《江汉石油职工大学学报》2023年第5期44-47,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：漂浮下套管技术是解决长水平井、大位移井以及高摩阻井中套管难以下入难题的一种有效方法,该技术已成功应用于页岩气水平井固井下套管实践中。基于漂浮下套管技术原理,调研了漂浮接箍研究现状,结合实例从常规下套管方式模拟和漂浮下套管优化,介绍了漂浮段长度的确定,以及现场漂浮下套管作业情况,该技术有效保障了页岩气超长水平井套管顺利下入,为超长水平井套管下入提供了借鉴。Floatation casing running-in technology is an effective method to address the challenges of casing running-in in long horizontal wells,extended reach wells,and wells with high frictional resistance.This technology has been successfully applied in the cementing and casing operations of horizontal shale gas wells.Based on the principles of floatation casing technology,this paper investigates the current status of research on floatation collars.Combining case studies,it presents both the simulation of conventional casing methods and the optimization of floatation casing,introducing the determination of the floatation section length and the on-site floatation casing operation.The technology ensures the smooth running-in of casing in ultra-long horizontal shale gas wells,providing a reference for casing running-in in ultra-long horizontal wells.

关 键 词：漂浮下套管 漂浮接箍 超长水平井 页岩气 

分 类 号：TE243[石油与天然气工程—油气井工程]