摘要
注气提高原油采收率是目前国外的主流技术 ,近年来在国内也得到重视和应用。注气过程会改变原有体系的组成、温度等热力学条件 ,而诱发蜡质、沥青质等有机固相沉积问题 ,给生产带来严重的危害。激光测试方法能够测定高温、高压以及含气原油体系的固相沉积起始点温度、压力或组成 ,气—液—固三相相平衡热力学模型能够用于油气开采过程 ,以及注气过程中出现气—液—固三相相态转化时的固相沉积模拟研究 ,其结果能为最大限度地防止固相沉积对生产造成的危害提供依据和手段。
Injecting gas which has been a major technology for enhancing oil recovery abroad,is getting attention and application in China.The variation of composition,temperature can cause organic solid precipitation of wax and asphaltene and then bring serious problems in the production.The laser technique can test solid precipitation point at high temperature and pressure for a system of oil and gas.The thermodynamic model of oil-gas-solid can model and predict solid precipitation in the production of oil and gas,as well as in the process of gas injection.The results offer a basis for prevention damage from solid precipitation in the production.
出处
《断块油气田》
CAS
2003年第2期35-37,共3页
Fault-Block Oil & Gas Field
基金
国家"九五"重点科技攻关项目 (G96-12 1-0 7-0 4)
"油气藏地质及开发工程国家重点实验室"开放基金资助项目 (PLN990 1)
