The third age of wireline log analysis: application to reservoir diagenesis
The third age of wireline log analysis: application to reservoir diagenesis
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DOI：
10.1144/gsl.sp.1992.065.01.30
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
R. C. Selley
中科院分区：
文献类型：
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作者：
R. C. Selley
地球物理测井最初用于识别潜在油气藏的孔隙度和流体组成。随后，它们的应用范围扩大到包括诊断储层的沉积环境，以帮助预测储层的几何形状。这两种技术现在都是常规的。由于对影响油藏的成岩过程（包括破坏孔隙度的胶结作用和增强孔隙度的溶蚀作用）的认识加深，地球物理测井应用的新时代即将到来。这些想法既可以用于解释常规孔隙度测井，也可以用于解释新型测井，通过仔细解释，可以测量矿物学的垂直变化。地球物理测井可以识别出三种主要的成岩作用：与相相关的成岩现象；与酸性大气或深部原生流体迁移成岩锋面有关的胶结淋滤带；以及与油气运移和圈闭有关的成岩作用。
Abstract Geophysical well logs were first developed to identify the porosity and fluid composition of potential petroleum reservoirs. Subsequently their use was extended to include diagnosing the depositional environment of reservoirs, as an aid to predicting their geometry. Both these techniques are now routine. A new age of the application of geophysical logs now dawns due to the enhanced understanding of the diagenetic processes that affect petroleum reservoirs, including cementation which destroys porosity and solution which enhances it. These ideas can be used to interpret both conventional porosity logs and the new types of log that, when carefully interpreted, allow vertical variations in mineralogy to be measured. Three main diagenetic effects can be recognized in geophysical well logs: facies-related diagenetic phenomena; cemented and leached zones related to migrating diagenetic fronts of acid meteoric or deep connate fluids; and diagenetic effects related to petroleum migration and entrapment.