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| Application of logging data to unconformable vertical structure research of stratum |
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CHEN Gang hua1, ZHANG Lei1, SONG Guo qi2, SUI Feng gui2, WANG Xue jun2, ZHAO Le qiang2
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(1.College of Geo Resources and Information in China University of Petroleum, Qingdao 266555, China;2.Geological Science Research Institute of Shengli Oilfield, Dongying 257015, China)
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| Abstract: |
| According to the logging response characteristics of unconformable vertical structure, manifold mathematical statistics methods of optimal segmentation and principle component analysis were applied to ascertain the unconformity depth and to extract the comprehensive parameters which are used to identify the unconformable vertical structure. And then the crossplot analysis method was used to recognize the unconformable vertical structure. The logging data of fifty wells of Tertiary system in Jiyang depression were processed and the unconformable vertical structures were divided by this method. The results agree well with the core analysis data, which proves that using logging data to identify the unconformable vertical structure is feasible. This method provides a new idea to research the unconformable vertical structure. |
| Key words: unconformable vertical structure logging data normalization principle component analysis crossplot |
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