大庆油田油藏工程技术的创新发展与攻关方向

Innovative development and research direction of reservoir engineering technlolgy in Daqing Oilfield

简要回顾了大庆油田开发65 a来油藏工程技术的进步历程,梳理了大庆油田立足油田开发实践创新形成的开发地质、数值模拟、水驱开发、化学驱油、油田开发规划编制方法5项综合研究体系;总结了在油藏工程领域创新发展的小层对比、精细储量计算、注水倍数对驱油效率的影响规律、全国第一条相渗透率曲线研制、小井距注水全过程开发试验、高含水期剩余油分布类型、高含水期稳油控水系统工程、聚合物黏弹性驱油理论和低酸值原油大幅度提高采收率的三元复合驱油理论10项行业领先的关键理论技术;提出了大庆油田持续开发面临的5大难题和需要进一步攻关的高含水区精细挖潜、天然气高效开发、CO_(2)驱油、微生物驱油、非常规油藏开发、地热能源开发、智能油田和高效优质驱油剂研制8项技术。研究成果为大庆油田可持续发展奠定了理论基础。

With review of 65-years progress of reservoir engineering technology in Daqing Oilfield development,5 comprehensive research systems innovatively formed based on Daqing Oilfield development practices are summarized,including development geology,numerical simulation,water flooding development,chemical flooding and oilfield development planning methods.10 industry-leading key theories and techniques innovatively developed in the field of reservoir engineering are illustrated,including sublayers correlation,precise reserves calculation,impact laws of water injection PV on displacement efficiency,development of the first relative permeability curve in China,whole-process development test for small well spacing water flooding,remaining oil distribution types in high water-cut stage,oil production stabilization and water cut controlling system engineering in high water-cut stage,polymer viscoelastic flooding theory and ASP flooding theory for significantly improving recovery of low-acid oil.5 major challenges of continuous development of Daqing Oilfield are proposed,and 8 techniques that need further study are presented,including fine potential tapping in high water-cut areas,efficient development of natural gas,CO2 flooding,microbial EOR,unconventional reservoir development,geothermal energy development,intelligent oilfield and efficient high-quality displacement agent development.The research lays theoretical foundation for sustainable development of Daqing Oilfield.