海上过热蒸汽驱受效井耐高温生产管柱工艺研究及应用  

Research and application of high-temperature resistant production string technology for offshore superheated steam flooding affected wells

作　　者：章宝玲 顾启林[1] 李大俭 安宏鑫 江群 房清超 田宇 ZHANG Baoling;GU Qilin;LI Dajian;AN Hongxin;JIANG Qun;FANG Qingchao;TIAN Yu(China Oilfield Services Limited,Tianjin 300450,China)

机构地区：[1]中海油田服务股份有限公司,天津300450

出　　处：《石油化工应用》2024年第8期33-36,共4页Petrochemical Industry Application

基　　金：“十三五”国家科技重大专项子课题“规模化多元热流体热采工程技术示范”(2016ZX05058-003-009)。

摘　　要：渤海A油田多轮次吞吐后转为蒸汽驱开发,开发过程中受效井井底温度高,产液温度高,对井筒完整性、防砂提出了更加严格的要求。为满足海上长期生产需求,如何提高生产管柱整体耐高温性能、降低油套环空温度、降低地面产出液温度是海上过热蒸汽驱受效井工艺研究的关键点。为此,以渤海A油田受效井B1井为例,结合海上油田生产管柱实践经验及工具试验进展,提出了“隔热管柱+环空补液”的工艺思路,进行生产管柱方案优化设计;利用专业软件计算了采用该管柱工艺情况下的井筒沿程温度,相比常规管柱工艺,该管柱工艺提升了整体耐温性能,降低了油套环空温度,保障了井筒安全,为保障海上蒸汽驱受效井安全生产运行奠定坚实基础。After multiple rounds of huff and puff in Bohai A oilfield,it has been converted to steam flooding development.During the development process,the high temperature at the bottom of the affected wells has put forward stricter requirements for wellbore integrity and sand control.To meet the long-term production needs at sea,how to improve the overall high-temperature resistance of the production string,reduce the temperature of the oil casing annulus,and lower the temperature of the produced liquid on the ground are the key points in the research of the offshore superheated steam flooding affected well technology.Taking the affected well B1 in Bohai A oilfield as an example,combined with the practical experience of offshore oilfield production string and the progress of tool testing,proposes the process idea of"insulated string+annular fluid replenishment",and optimizes the design of production string scheme.The wellbore temperature was calculated using professional software under the condition of using this string technology.Compared with conventional string technology,this process string improves the overall temperature resistance performance,reduces the temperature of the oil casing annulus,ensuring wellbore safety and laying a solid foundation for the safe production and operation of offshore steam flooding affected well strings.

关 键 词：海上油田 过热蒸汽驱 受效井 耐高温 生产管柱 

分 类 号：TE952[石油与天然气工程—石油机械设备]