Y1油气田优快钻井关键技术与应用  

Key techniques and applications of high-speed drilling in Huangyan District Y1 oil and gas field

作　　者：徐佳 袁则名 张海山 左宏刚 王喜杰 Xu Jia;Yuan Zeming;Zhang Haishan;Zuo Honggang;Wang Xijie(China National Offshore Oil China CO.,ltd.,Shanghai Branch,Shanghai 200335,China;CNOOC Energy,Development Co,2td,Engineering Technotogg Branch,Tianjin 300450,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200335 [2]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《海洋工程装备与技术》2023年第3期52-56,共5页Ocean Engineering Equipment and Technology

摘　　要：Y1油气田目的层埋藏深,地层倾角大,是典型的低孔渗储地层,存在表层机械钻速难以释放、中上部地层井壁失稳问题突出、深部地层可钻性差、局部地层漏失压力低、长裸眼段固井时漏失风险高等难题,制约该气田钻井提速提效。为此,开展了综合配套技术研究,分析了该气田作业期间遇到的技术难题,并结合东海已有的成熟钻井技术体系,形成了井身结构适应性简化、油基泥浆体系、个性化PDC钻头设计、优化钻具组合等,适合于Y1油气田深井、超深井钻井作业提速的关键技术,切实解决上述制约钻井提速提效的技术难题,为该气田规模开发提供技术指导。The target layer of the Y1 oil and gas field is deeply buried,with a large dip angle and a typical low porosity and permeability reservoir,there are some difficult problems,such as difficult to release Rop in surface layer,prominent problem of borehole instability in middle and upper layer,poor drill ability in deep layer,low local formation loss pressure and high risk of loss during cementing in long open hole section,etc.,the drilling speed and efficiency of the gas field are restricted.To this end,the corresponding comprehensive technical research,through the analysis of the gas field during the operation of the technical difficulties encountered,and the East China Sea has a mature drilling technology system,key Technologies,such as casing program simplification,oil-based mud system,personalized PDC bit design,and optimized BHA,have been developed to speed up drilling operations in deep and ultra-deep wells in the Y1 oil and gas field,the technical problems which restrict drilling speed and efficiency are solved,and the technical guidance is provided for the scale development of the gas field.

关 键 词：漏失 井壁失稳 井身结构 钻具组合 

分 类 号：TE52[石油与天然气工程—油气田开发工程]