摘要
低渗透气藏和特低渗透气藏在我国已发现和开发的气藏中占有相当大的比例。由于低渗透气藏和特低渗透气藏储层物性差、地质条件和渗流机理复杂,造成气井单井控制储量低、产量低、产量下降快、稳产状况差、采收率低。在查阅大量相关文献的基础上,通过分析低渗透气藏和特低渗透气藏低产和低采收率的原因,总结了在现有技术条件下如何提高低渗透气藏和特低渗透气藏的采收率和产量的措施和方法。
There are a lot of low- and extra low-permeability gas reservoirs in China, accounting for a big proportion of discovered and developed reservoirs. Many situations in low- and extra low-permeability gas reservoirs may emerge due to poor physical properties, bad geological conditions and complicated filtration mechanism, for instance, low control reserves and yield, fast production decrease, poor stable production and low recovery efficiency in single gas well. This paper analyzes the reason of both low yield and low recovery efficiency in these reservoirs and also presents how to enhance recovery efficiency and production under the condition of existing technologies.
出处
《天然气勘探与开发》
2007年第2期47-49,78,共3页
Natural Gas Exploration and Development
基金
西南石油大学石油工程学院本科生创新培养基金项目资助
基金项目编号:油院字[2006]4号
关键词
低渗透气藏
地质特征
增产措施
提高采收率
low-permeability gas reservoir, geological characteristics, stimulation, EOR
