无隔水管海底泵举升系统循环温度变化动态模拟  

Dynamic Simulation Research on Circulating Temperature Change for Riserless Mud Recovery System

作　　者：张杰[1] 李鑫[1] 王志伟 李翠楠 杜肖潇 ZHANG Jie;LI Xin;WANG Zhiwei;LI Cuinan;DU Xiaoxiao(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China;CNOOC China Limited,Shenzhen Branch,Shenzhen,Guangdong 518000,China;Engineering Technology Research Institute,Southwest Oil&Gasfield Company,CNPC,Guanghan,Sichuan 618300,China)

机构地区：[1]油气藏地质及开发工程国家重点实验室
西南石油大学,四川成都610500 [2]中海石油(中国)有限公司深圳分公司,广东深圳518000 [3]中国石油西南油气田分公司工程技术研究院,四川广汉618300

出　　处：《西南石油大学学报（自然科学版）》2022年第5期74-84,共11页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重点研发计划(2018YFC0310200);国家自然科学基金面上项目(51274168);西南石油大学研究生科研创新基金重点项目(2020CXZD30)。

摘　　要：由于无隔水管海底泵举升系统使用回流管线代替隔水管作为钻井液上返的通道,造成海水段钻井液注入与上返的路径成为了两个相互独立的单元,流体的换热方式发生了较大变化。为此,以系统的结构特点为依据,分段建立了其不同结构内的循环温度模拟动态分析模型,并对全系统的循环温度变化进行了动态模拟。研究结果表明,与Lima和Pereira等所建立的解析解模型相比,论文所建立的模型更贴合实际的钻进情况,且模拟的结果具备准确性;在钻井作业过程中,作业时长的变化会造成全系统的循环温度发生变化;钻井液的密度变化同样会使全系统的循环温度发生改变,但变化的趋势与作业时长不同;作业水深的改变主要会对海水段各结构内的循环温度造成影响,但对地层段相应结构的影响较弱。As the Riserless Mud Recovery(RMR)system uses the return line instead of the riser as the upward return channel of the drilling fluid,the injection and upward return path of the drilling fluid in the seawater section become two independent units,which dramatically changes the heat transfer mode of liquid.Therefore,based on the characteristics of the system,this paper builds a dynamic analysis model to simulate the circulating temperature of the different components and carries out a dynamic simulation of the circulating temperature change for the whole system.The research results show that compared with the analytical solution models built by Lima and Pereira,the model in this paper is more suitable for the actual drilling situation,and the simulation results are accurate.During the drilling operation,the operation time change causes the circulating temperature change of the whole system.The evolution of the drilling fluid density also changes the circulating temperature of the whole system.However,the variation trend is different from the operation time.The change of the operating water depth mainly affects the circulating temperature of the each component in the seawater section.The impact on the corresponding parts of the formation section is weak.

关 键 词：无隔水管海底泵举升系统 全系统 循环温度 动态模拟 动态分析模型 

分 类 号：TE52[石油与天然气工程—油气田开发工程]