低渗透油藏提高采收率技术现状与挑战  

Status-quo and Challenges of Enhanced Oil Recovery in Low Permeability Reservoirs

作　　者：王成俊[1,2] 洪玲[1] 高瑞民 王伟[1] 张忠林[1] 段景杰 苗小龙 Wang Chengjun;Hong Ling;Gao Ruimin;Wang Wei;Zhang Zhonglin;Duan Jingjie;Miao Xiaolong(Research Institute of Shaanzci Yanchang Petroleum（Group）Co.,Ltd.,Xi＇an,Shaanxi 710075;Shaanzci University of Science and Technology,Xi＇an,Shaanzci 710021,China)

机构地区：[1]陕西延长石油(集团)有限责任公司,陕西西安710075 [2]陕西科技大学,陕西西安710021

出　　处：《非常规油气》2018年第3期102-108,共7页Unconventional Oil & Gas

基　　金：陕西省科技统筹创新工程计划项目"提高延长油田主力油层开发效果系统工程关键技术研究"(2011KTZB01-04)资助

摘　　要：鉴于低渗透油藏基质致密、裂缝系统复杂、油井生产水平低、采收率低、开发效果差,本文在详细分析低渗透油藏地质及开发特征的基础上,阐述了改善水驱、气驱、化学驱、微生物采油、物理法采油、热力采油等6大类提高采收率技术应用特点和适应性,明确了深化驱油机理认识是促进采收率技术进步的基础,研发廉价环保驱替介质、研制智能调驱技术、集成利用不同提高采收率技术、发挥不同技术的协同效应是低渗透油田提高采收率技术的攻关方向。Due to dense matrix and complicated fracture, low productive level of oil wells, low oil recovery and poor development effect exist in low permeability reservoirs, in view of the above, reservoir geology and development characteristics were analyzed in detail. On this basis, the application features and adaptability of enhanced oil recov cry （EOR） ways were demonstrated in low permeability reservoirs, these EOR ways include improved water flood ing, gas flooding, chemical flooding, microbial recovery, physical recovery and thermal recovery. It is pointed out that EOR technologies are facing many sided challenges： such as filtration theory, oil displacement mechanism, envi ronmental protection, cost and comprehensive decision. At the same time, the development tendency of EOR is clearly pointed out in low permeability reservoirs. Results indicated that the foundation of EOR technological pro gress was to deepen acknowledgement of oil displacement mechanism. The research tendency of EOR technology in low permeability reservoirs was to develop low cost environmental oil-displacing agem and intelligent profile control, to integrate different EOR ways to exert their synergy effects.

关 键 词：低渗透油藏 提高采收率 改善水驱 气驱 化学驱 挑战 

分 类 号：TE357[石油与天然气工程—油气田开发工程]