摘要
热复合开发是实现难采稠油油藏高效开发与蒸汽热采开发后期稠油油藏提高采收率的主要技术,目前已在国内外各稠油油田开展了大量矿场试验。本文立足于稠油油藏的高效热采开发目标,分析了当前稠油油藏蒸汽热采开发后期面临的主要技术问题,阐述了3种典型的稠油热复合开发提高采收率技术,包括蒸汽—非凝析气、蒸汽—化学剂及蒸汽—溶剂复合技术,总结了不同热复合技术的作用机理及应用效果。结合当前的国内外技术发展动态,提出了热复合开发技术应用过程中的适应性筛选,展望了热复合开发技术的发展趋势,分析了现阶段的稠油开发新技术,以期促进对稠油油藏全生命周期的大规模热采高效开发。
Hybrid thermal recovery processes have become a primary technique used to improve the recovery performance of post steamed heavy oil reservoirs and been used to exploit marginal heavy oil reservoirs effectively. Related research projects at home and abroad have been conducted in many heavy oil fields. Based on the objective to develop heavy oil reservoirs efficiently,the major technical issues after the steam-based process, and three important hybrid thermal recovery techniques are analyzed systematically in this paper. These are, the hybrid thermal-NCG(non-condensable gas) process, the hybrid thermal-chemical process and the hybrid thermal-solvent process. Simultaneously, the mechanisms and application performance of these hybrid thermal processes are also included. In addition, the issue of adaptability screening for hybrid EOR processes is proposed based on the research of the development trend of hybrid processes in the world. In order to promote the large-scale thermal recovery operation and effective development of the whole life-cycle heavy oil reservoir, the development trends of hybrid thermal recovery process are predicted, and the novel technologies for heavy oil reservoirs are also analyzed.
作者
刘慧卿
东晓虎
LIU Huiqing;DONG Xiaohu(State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum-Beijing,Beijing 102249,China)
出处
《石油科学通报》
2022年第2期174-184,共11页
Petroleum Science Bulletin
基金
国家自然科学基金企业创新发展联合基金——难采稠油多元热复合高效开发机理与关键技术基础研究(U20B6003)资助。
