调剖调驱技术在非均质油气藏的应用  

Application of Profile Control and Oil Displacement Technology in Heterogeneous Oil and Gas Reservoir

作　　者：曹新 张文鹏 于兆坤 CAO Xin;ZHANG Wenpeng;YU Zhaokun(CNOOC EnerTech - Drilling ＆ Production Co. , Tianjin 30045)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《精细石油化工进展》2018年第3期36-38,共3页Advances in Fine Petrochemicals

摘　　要：针对油田储层非均质性、注入水驱波及体积小、驱替效率低、注入水利用率低等问题,选择适宜的调剖体系,对复合断块构造非均质性强、原油黏度大的储层采取分层调剖,用凝胶先后封堵高孔高渗层及高孔中渗层,使低渗透层得到很好的利用,缓解油藏层内矛盾。加注表面活性剂进行调驱治理,利用表面活性剂和稠油分子之间的相互作用将稠油聚集体解聚,降低稠油黏度,改善油水流度比,驱油效果显著提高。In consideration of in view of the problems of oil reservoir heterogeneity,small volume of flooding,low displacement efficiency and low water injection rate,a suitable profile control system is selected,and stratified profile control is adopted for reservoirs with strong heterogeneity and large viscosity of crude oil,and high porosity and high porosity and permeability layer have been blocked by gel successively. Low permeability layer is well used to alleviate the contradiction in reservoir. The surface active agent is used to control and drive the heavy oil with the interaction between the surfactant and the heavy oil molecules. The viscosity of heavy oil is reduced,the ratio of oil and water flow rate is improved,and the effect of oil displacement is greatly improved.

关 键 词：注水井 非均质性 调剖 表面活性剂 驱油 

分 类 号：TE53[石油与天然气工程—油气田开发工程]