摘要
DB气田以裂缝-孔隙型、孔隙型岩屑砂岩储层为主,非均质性强,裂缝发育程度是决定产能高低的关键因素之一.立足于储层的录井、岩心分析和测井资料,开发了储层级别划分和常规测井识别储层级别的方法.首先,定义了每米产能指数作为标准化的产能参数;其次,基于产能参数与储层物性参数关系的考察,筛选综合物性参数(孔隙度和总渗透率的乘积)作为储层级别划分的评价指标,将DB气田储层分成了2个级别,给出了分级的物性标准;最后,应用主成分分析法计算了综合主成分,基于综合主成分与每米产能指数交会图给出了应用常规测井资料识别储层级别的标准.2口井的应用效果表明,依据上述方法划分及识别的储层级别与生产情况吻合得较好.
Reservoir in DB gas field is mainly fracture-porosity type and porosity type. It has strong nonuniformity in this field. The degree of fractures development is one of the key factors in decision hydrocarbon productivity. Based on logging data,core analysis data, geology data and well logging data of reservoir, the methods are developed for reservoir classification and conventional logging identification. First, productivity index per meter is defined as standardized productivity parameter. Second, based on the relationship between productivity parameter and reservoir physical properties, comprehensive physical properties parameter（ the product of pore and permeability）is used as evaluation criterion of reservoir levels. The reservoir in DB gas field is thus classified into 2 levels, and the physical properties classification standard is provided. Last, comprehensive principle components are calculated using principle component method. Based on the cross plot of comprehensive principle components vs productivity index per meter, reservoir classification standard developed by conventional logging is established. The application on 2 wells shows that the results of classification and identification reservoir level agree with the production.
出处
《地球物理学进展》
CSCD
北大核心
2012年第1期186-192,共7页
Progress in Geophysics
基金
山东省自然科学基金项目Y2008E08资助
关键词
裂缝-孔隙型
非均质性
产能指数
综合物性参数
储层级别
主成分分析
常规测井
fracture-porosity type,nonuniformity, productivity index, comprehensive physical properties parameter, reservoir level, principle component method, conventional logging
