空心斜向器开窗和定方位射孔技术在水下分支井中的应用  

The Application of Hollow Slanting Open Window and Fixed Azimuth Perforation Technology in Underwater Branch Well

作　　者：苏峰 姚志奇 谢新荣 

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]中海石油(中国)有限公司深圳分公司深水工程技术中心,广东深圳518067 [3]中石油渤海钻探工程有限公司第一钻井工程分公司,天津300280 [4]渤海钻探钻井泥浆技术服务公司,天津300280

出　　处：《长江大学学报（自然科学版）》2018年第23期52-56,共5页Journal of Yangtze University(Natural Science Edition)

摘　　要：分支井技术作为一种提高采收率及提高油气开采经济效益的技术手段,已被广泛应用到海上油气田开发。针对LH4-1油田油藏地质情况及原油物性特点,为更大限度提高单井产能和经济效益,LH4-1油田开发设计一口水下双分支水平井,该井是国内海上油田开发中首次采用空心斜向器开窗及定方位射孔工艺技术钻水下双分支水平井。主要包括井身结构设计优化、分支井连接交叉处的处理工艺、定向钻具组合选择与井眼轨迹控制技术、空心斜向器定方位射孔工艺技术等,可为今后国内海上油田实施和推广水下双分支井技术提供借鉴。As a technical means to improve recovery efficiency and improve the economic efficiency of oil and gas extraction,the technology of branch well has been widely used in offshore oil and gas field development.According to the geological conditions and crude oil characteristics of LH4-1 Oilfield,to increase the productivity and economic benefit of the single well,an underwater dualbranch horizontal well was designed in Lh4-1 Oilfield for oil development.It is the first double branch horizontal well for oil development in domestic offshore oilfields,which is the first use of hollow slant window and the azimuth perforation technology.

关 键 词：LH4-1油田 水平双分支井 井眼轨迹控制 空心斜向器开窗 定方位射孔 

分 类 号：TE24[石油与天然气工程—油气井工程]