摘要
介绍了注天然气(烃类气)提高采收率的研究进展。论述了美国、加拿大、苏联注天然气提高采收率的应用规模,介绍了其他国家的典型项目。以大庆油田、长庆油田等天然气驱项目为例,分析了国内天然气驱发展缓慢的原因。探讨了天然气驱项目的油藏条件、井网井距、注入时机、注入方式等。分析了国内外天然气驱项目实施中遇到的混相压力高、沥青质沉淀、形成天然气水合物、过早气窜等问题及相应解决办法。阐述了天然气驱提高采收率技术的应用前景。
The technologies of natural gas flooding are reviewed in this paper. The natural gas flooding is mostly applied in America, Canada and the former Soviet Union. Typical projects are described. The causes of slow development of the natural gas flooding in China are analyzed. The natural gas flooding projects in Changqing oil field and the Daqing oil field are taken as samples in China. The oil reservoir conditions, the well net, the well spacing, the injecting conditions and the injecting modes in the natural gas flooding peojects are analyzed. The problems and their solutions during the natural gas flooding operation are discussed.
出处
《科技导报》
CAS
CSCD
北大核心
2014年第21期72-75,共4页
Science & Technology Review
关键词
天然气
提高采收率
油藏
natural gas
enhanced oil recovery
oil reservoir
