储层渗流能力定量描述方法及其在油田开发中的应用  

Application of quantitative description method of reservoir flow capacity in oilfield development

作　　者：郑春峰[1] 赵忠义[2] 黄新春[1] 郝晓军[1] 谷丽红 

机构地区：[1]中海油能源发展股份有限公司,天津300452 [2]中油大庆油田有限责任公司,黑龙江大庆163514

出　　处：《特种油气藏》2011年第5期93-95,140,共3页Special Oil & Gas Reservoirs

摘　　要：在油田实际生产过程中,常常需要评价不同增产措施对储层渗流能力的改变量。当前常用的产液指数评价指标能够有效地评价储层综合渗透率的变化规律,但该方法不能把储层有效渗透率和绝对渗透率的改变量分开单独评价。为此引入渗透率比率概念,建立定量描述储层绝对渗透率变化规律的数学模型。将产液指数分析方法和渗透率比率分析方法相结合,能准确地评价增产措施对储层参数的改变量及其实施效果。采用渤海某油田X24井实际生产数据及相对渗透率曲线,应用渗透率比率和产液指数方法综合评价酸化后储层渗流能力的变化量。结果表明,2种方法有效结合,能够准确地评价增产措施效果。It is often required to evaluate reservoir flow capacity after stimulation treatment.The existing evaluation method of fluid productivity index is effective to evaluate composite permeability changes,but it is unable to respectively evaluate the changes of absolute permeability and relative permeability.Therefore the concept of permeability ratio is introduced and a mathematical model is built to quantitatively present the changes of absolute reservoir permeability.The impact of stimulation treatment on reservoir parameters and the implementation result can be more accurately evaluated through combining fluid productivity index analysis with permeability ratio analysis.The X24 well in Bohai Oilfield is evaluated for reservoir flow capacity after stimulation treatment by using production data and relative permeability curve through applying permeability ratio and fluid productivity index methods.The result shows that the combination of the two methods can properly evaluate the effect of stimulation treatment.

关 键 词：绝对渗透率 产液指数 渗透率比率 增产措施 评价指标 

分 类 号：TE311[石油与天然气工程—油气田开发工程]