特种油气藏2017，Vol.24Issue(6)：148-151,4.DOI:10.3969/j.issn.1006-6535.2017.06.029
高黏稠油生物降黏驱替技术实验研究
Experimental Study of Biological Viscosity Reduction for High-Viscosity Heavy Oil
摘要
Abstract
The microbe degradation mechanism is analyzed and the microbe-tlooding is physically simulated within laboratory to effectively reduce heavy-oil viscosity in high-viscosity region,improve development performance and enhance oil recovery.Efficient strains are optimized to determine optimal compounding proportion for biological viscosity reduction by analyzing the strain amount,treatment time and effect.Research demonstrates that QY-1,QY -2 andi QY-3 show favorable viscosity reducing performances and the corresponding viscosity-reducing ratios exceed 65.00％.The viscosity-reducing ratio could reach 73.58％ after compounding the three strains with the proportion of 1 ∶ 1 ∶ 1,which performs better than any single strain.The corresponding growth rate can reach 24.8％ by using the optimal compounding proportion in microbe-flooding.This research is of great significance to sustainable development of high-viscosity oilfields.关键词
微生物驱油/降黏/菌种复配/采收率/驱替Key words
microbe-flooding/viscosity reducing/strain compounding/recovery factor/displacement分类
能源科技引用本文复制引用
桑林翔,杨兆中,杨果,丁超,支锦飞..高黏稠油生物降黏驱替技术实验研究[J].特种油气藏,2017,24(6):148-151,4.基金项目
国家科技重大专项“海上油田聚合物驱关键问题研究”(2011ZX05024-004-01) （2011ZX05024-004-01）
