碎屑岩储层的密度地层因素公式及在ZR油田的应用  

A density formation factor formula of fragmental reservoir and its application in ZR oilfield.

作　　者：刘伟[1] 徐怀民[2] 刘国民[3] 

机构地区：[1]中原油田采油二厂 [2]中国科学院地质与地球物理研究所 [3]中原油田分公司勘探开发科学研究院储量室

出　　处：《石油仪器》2008年第5期56-58,25,共3页Petroleum Instruments

摘　　要：密度测井响应值(ρ)不仅与储层的岩性、孔隙度(φ)及孔隙中流体的密度(ρf)有关,还取决于储层孔隙结构。通过引进参数m、a(它们能够反映储层孔隙结构和孔隙中流体密度的变化)建立的密度地层因素公式,不仅能够满足实际计算储层孔隙度的精度要求,保证计算结果的可靠性和准确性,而且能够更客观、合理地描述储层的ρ-φ关系。The formation density(ρ)obtained with density logging is not only related to the lithology of reservoirs,porosity (φ),fluid density(ρf)in pore,but also depends on pore structure of reservoir.By introducing the parameter(m,a), which can reflect the change of pore structure and fluid density of reservoir,a density formation factor formula of fragmental reservoir is established.It not only ensures the reliability and accuracy of computing porosity,but also is able to depict the relation betweenρandφmore objectively and reasonably.

关 键 词：密度测井 有效孔隙度 孔隙结构 流体密度 密度地层因素公式 

分 类 号：P631.8[天文地球—地质矿产勘探]