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通过对油田内提高采收率技术的研究现状进行总结和描述,重点研究了水驱、化学驱、稠油热采以及气驱四类技术在油田开发中的应用,这四种方法较为成熟,因此在油田中得以大规模应用。目前,主要依靠细分重组层系和立体优化井网井型这两种手段来提高水驱技术,从而建立规范和卓有成效的注采系统。稠油热采技术则是利用复杂结构井、各类助剂和蒸汽,进而提高稠油油藏的开发效率。在气驱技术中,二氧化碳驱油是个研究热点。化学驱技术表现在高温高盐油藏和聚合物驱后油藏等方面。
By summarizing and describing the research status quo of oil recovery technology in oilfields, the application of four kinds of technologies of waterflooding, chemical flooding, heavy oil thermal recovery and gas flooding in oilfield development are mainly studied. The four methods are relatively mature, Therefore, large-scale application in the oil field. At present, the water-flooding technology is mainly relied on the two methods of subdivision and reorganization stratification and three-dimensional optimization of well pattern to establish a standardized and effective injection and production system. Heavy oil thermal recovery technology is the use of complex structure of wells, various additives and steam, thereby enhancing the development of heavy oil reservoir efficiency. In the gas flooding technology, carbon dioxide flooding is a research hotspot. Chemical flooding technology is manifested in high temperature and high salt reservoir and polymer flooding reservoir.