特种油气藏2013，Vol.20Issue(2)：102-104,114,4.DOI:10.3969/j.issn.1006-6535.2013.02.025
三类油层弱碱三元复合体系动态驱油实验研究
Experimental Study on the Displacement of Oil by ASP Weak Alkali System in Class III Reservoirs
摘要
Abstract
In order to improve the efficiency of the displacement of oil by ASP weak alkali in class 3 reseivoirs of Saertu Oilfield, experiments of the displacement of oil with cores are conducted in lab and it is analyzed that different injection times, different polymer injection concentrations, different surfactant concentrations and different injection modes influence displacement effectiveness. The results show that for class 3 reservoirs, the earlier the conversion of water flooding to ASP, the higher the recovery factor; for the implementation of ASP weak alkali in class 3 reservoirs, the higher the polymer concentration in main slug and the higher the surfactant concentration, the higher the recovery percentage; when polymer concentration of ASP with molecular mass of 620 × 104 is greater than 2 750 mg/L, recovery percentage with chemical flooding increases by 11% compared with water flooding; and when molecular mass is 700 × 104 and 1 400 × 104 , recovery percentage with chemical flooding increases by 20% compared with water flooding.关键词
三类油层/弱碱/三元复合体系/驱油效果/采出程度/萨尔图油田Key words
class III reservoir/ weak alkalis/ ASP system/ displacement efficiency/ recovery percentage/ Saertu Oilfield分类
能源科技引用本文复制引用
闫文华,姚振杰,石晓博,吴安东,潘文辉..三类油层弱碱三元复合体系动态驱油实验研究[J].特种油气藏,2013,20(2):102-104,114,4.基金项目
国家科技重大专项"薄差油层动用条件及层系井网优化研究"(2011ZX05010-002-05) （2011ZX05010-002-05）
