摘要
冀东油田高13断块属于低渗透深层油藏,目前水驱开发效果差,注烃气是动用此类油藏有效的方法之一。针对高13断块油藏进行了烃气驱室内实验研究。注气相行为特征实验表明,注烃气对高13断块油藏流体的降黏、膨胀效果显著。细管驱替实验测试确定高13断块的混相压力为29MPa,在目前地层条件下能够混相。长岩心驱替结果表明,气驱比水驱效果好,优选水气交替的注入方式。室内实验结果表明,烃气驱在冀东油田低渗透油藏有着较好的应用前景和潜力。
Gao 13 Block belongs to a deep low-permeability reservoir in Jidong OiIfield. Hydrocarbon gas injection is one of effective methods to develop such reservoirs because of poor waterflooding development effect. Laboratory experiment of hydrocarbon gas injection is conducted in Gao 13 Block. The phase behavior experiment shows that the hydrocarbon gas injection makes the results of visbreaking and swell of reservoir fluid obvious in Gao 13 Block. Slim tube displacement test indicates that the miscibility pressure is 29MPa in the block and the miscible displacement can be carried out under the present formation conditions. Long-core displacement test shows that the effect of gas flooding is better than that of waterflooding and that the wag injection way should be optimized. The laboratory experiment results show that the hydrocarbon gas injection has a wide application prospect and potential in the low permeability reservoirs of Jidong Oilfield.
出处
《断块油气田》
CAS
北大核心
2009年第5期53-56,共4页
Fault-Block Oil & Gas Field
基金
中国石油天然气股份有限公司科技攻关项目"断块油田提高石油采收率新技术与应用技术研究"(7-02A-01-02)
关键词
烃气驱
相行为特征实验
细管实验
长岩心驱替
采收率
hydrocarbon gas injection, phase behavior experiment, slim tube test, long-core displacement, recovery ratio
