海上平台聚合物溶液分流型预混器研究  

Study on Polymer Solution Dispersive Premixer for Offshore Platform

作　　者：舒政 廖东 赵文森 赵娟 陈文娟 Shu Zheng;Liao Dong;Zhao Wensen;Zhao Juan;Chen Wenjuan(Petroleum Engineering School,Southwest Petroleum University;CNOOC Research Institute Co.,Ltd)

机构地区：[1]西南石油大学石油与天然气工程学院 [2]中海油研究总院有限责任公司

出　　处：《石油机械》2020年第5期46-51,共6页China Petroleum Machinery

基　　金：国家科技重大专项之子课题“海上平台聚合物快速溶解技术研究”(2016ZX05025-003-008)。

摘　　要：海上油田聚合物驱油过程中,高浓度聚合物母液与高压水混合所使用的静态混合器的混合效果很大程度上影响着采油效率。海上平台空间和承重有限,为了使静态混合器实现高浓度聚合物母液和高压水的高效混合,研制了一种分流型预混器。基于计算流体力学理论,通过数值模拟和现场试验研究了流体在管道内的流动情况及混合效果,并与平台现场高浓度聚合物母液和高压水在三通中预混的效果进行了对比。研究结果表明:高浓度聚合物母液和高压水在分流型预混器出口端0. 60 m内可实现高效混合;现场平台静态混合器前加装分流型预混器后聚合物溶液混合均匀度提高了14. 29百分点。该分流型预混器可以满足海上平台聚合物驱的配注要求。For the polymer flooding in offshore oilfields,the mixing performance of the static mixer used for mixing high-concentration polymer mother liquor with high-pressure water greatly affects the oil recovery efficiency.The offshore platform has limited space and load-bearing capacity.To enable the static mixer to efficiently mix high-concentration polymer mother liquor and high-pressure water,a dispersive premixer was developed.Based on the theory of computational fluid mechanics,the fluid flow and mixing in the pipeline were studied through numerical simulation and field test,and compared with the pre-mixing performance of the three-way on the platform.The results of the study show that:high-concentration polymer mother liquor and high-pressure water can be efficiently mixed within 0.60 m of the outlet of the dispersive premixer.The uniformity of polymer solution mixing after the dispersive premixer is added in front of the static mixer on the platform is improved by 14.29%.The dispersive premixer can meet the requirements of polymer flooding for offshore platforms.

关 键 词：海上平台 聚合物溶液 分流型预混器 数值模拟 混合效果 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]