新疆石油地质

›› 2016, Vol. 37 ›› Issue (5): 1-1.doi: 10.7657/XJPG20160518

• 论文 •    

核磁共振测井资料在滴西地区火成岩中的应用效果分析

史飞洲1，王彦春1，孙炜2，方圆3   

  1. (1.中国地质大学 地球物理与信息技术学院,北京 100083;2.中国石化 石油勘探开发研究院 构造与沉积储层实验室,北京 100083;3.中国地质调查局 发展研究中心,北京 100037)
  • 出版日期:2019-01-01 发布日期:1905-07-16

Analysis on Application Effect of NMR Logging Data in Igneous Rocks in District Dixi

SHI Feizhou1, WANG Yanchun1, SUN Wei2, FANG Yuan3   

  1. (1.School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China; 2.Laboratory of Structural and Sedimentological Reservoir Geology, Research Institute of Petroleum Exploration & Development, Sinopec, Beijing 100083, China;3.Development and Research Center, China Geological Survey, Beijing 100037, China)
  • Online:2019-01-01 Published:1905-07-16

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摘要： 物性和流体性质相似的火成岩储集层，其核磁共振测井资料存在较大的差异，且导致这种差异的原因尚不明确。以准噶尔盆地滴西地区石炭系火成岩为例，对3口井核磁共振测井资料的应用效果进行了分析，从铁磁性矿物含量、石英含量和泥质含量3个方面对核磁共振测井资料的应用效果差异进行了讨论。结果表明，核磁共振测井资料在研究区酸性火成岩中的应用效果要好于中基性火成岩。核磁共振测井计算的孔隙度随铁磁性矿物含量的增加而变小，随石英含量的增加而更接近地层的真实孔隙度，随泥质含量的增加而变大，孔隙度的变化量小于10%

Abstract: There are big differences among igneous reservoirs with similar physical and fluid properties, but the reason for the differences is not clear. Taking the Carboniferous igneous rocks in District Dixi of Junggar basin as an example, the paper analyzes the application effect of NMR data from 3 wells and discusses the differences of the NMR data application effect from 3 aspects such as ferromagnetic mineral content, quartz content and shale content. The result shows that the application effect of NMR data in acidic igneous rock study is better than that in intermediate-basic igneous rock study. The calculated porosity obtained from NMR logging decreases with the increase of ferromagnetic mineral content, which is closer to the actual formation porosity with the increase of quartz content and becomes larger with the increase of shale content. The variation of the porosity is less than 10%

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