耐温抗盐交联聚合物体系成胶性能评价  

Evaluation of gelling properties and formula optimization of temperature and salt resistance cross-linking polymer system

作　　者：唐金星[1] 海玉芝[1] 盛海燕[1] 罗九明[1] 皇海权[1] 

机构地区：[1]中国石化集团公司河南油田分公司石油勘探开发研究院

出　　处：《石油与天然气化工》2013年第4期392-397,共6页Chemical engineering of oil & gas

基　　金：中国石油化工集团公司"十条龙"重点科技攻关项目"耐温抗盐低浓度交联聚合物驱油技术研究"(P04056)

摘　　要：模拟双河油田95℃高温油藏条件,评价研究了交联聚合物驱油体系的成胶性能、耐温抗盐性能和长期热稳定性,分析了影响驱油体系成胶性能的主要因素。结果表明,研制的交联聚合物体系耐温抗盐性能好,耐温105℃,抗盐100 000mg/L;在95℃高温下老化180天,成胶黏度保持稳定。优化了交联聚合物体系配方,形成了高度、中度和低度交联聚合物系列配方,为高温油藏化学驱提高采收率提供了新型驱油体系。Simulated the reservoir conditions with high temperature of 95℃ in Shuanghe oil field, properties of gelling, temperature and salt tolerance, and long-term thermal stability of cross-linking polymer systems were evaluated, and main factors impacting on gelling properties were analyzed. The experimental results showed the cross-linking polymer systems have excel- lent temperature resistance of 105℃ and salt tolerance of 100 000 mg/L salinity, as well as long term thermal stability after aging 180 days at 95℃. A line of formulations including highly cross- linked, moderate and low cross-linking systems were optimized for different oilfield applications, which provide new flooding systems for enhancing oil recovery of high temperature reservoirs.

关 键 词：聚合物 交联剂 聚交比 黏度 耐温抗盐 热稳定性 

分 类 号：TE39[石油与天然气工程—油气田开发工程]