稠油掺稀降黏评价新方法及模拟分析  

A new viscosity evaluation method of heavy oil production assisted with light oil blending and simulation analysis

作　　者：柯文奇 赵仁保[2] 石在虹[1] 岳湘安[2] 吴嘉怡 

机构地区：[1]中国石油化工股份有限公司石油勘探开发研究院,北京100083 [2]中国石油大学(北京)油气资源与探测国家重点实验室,北京100092

出　　处：《中南大学学报（自然科学版）》2016年第6期1990-1994,共5页Journal of Central South University:Science and Technology

基　　金：国家科技重大专项(2011ZX05031-003-004)~~

摘　　要：在分析现有掺稀降黏评价手段的基础上,建立稠油井筒掺稀降黏模拟评价方法,并研究掺稀比、掺稀温度和掺稀稀释剂对掺稀降黏效果的影响。研究结果表明:在黏度为74 m Pa·s时,该评价方法的相对误差为5.36%,并具有较好的稳定性和可靠性,能够适用于稠油的黏度测量分析。掺稀过程伴随整个井筒流动逐渐发生。提高掺稀温度、注入合适的稀释剂均有利于提高掺稀效果,为实际生产优化设计提供有力借鉴。Based on the analysis of the existing light oil blending evaluation method, a new viscosity simulation and evaluation method of heavy oil production assisted with light oil blending was established to study the flowing dynamic and viscosity changes of the mixed oil system in wellbore. And the influences of blending ratio, blending temperature and diluents type were evaluated. The results show that the relative error of evaluation method is less than 5.36% when the fluid viscosity is no more than 74 m Pa·s, which means this evaluation method has good stability and reliability for heavy oil viscosity measurement and analysis. The mixed and viscosity reduction evolves with the wellbore flowing. And improving the blending temperature and injection diluted thinners are beneficial to improve the effect, which can provide a powerful reference for practical production for optimization design.

关 键 词：稠油 掺稀 模拟 降黏 

分 类 号：TE355.21[石油与天然气工程—油气田开发工程]