Multilevel Quantitative Evaluation of 3D Geological Model of Complex Fault Block Reservoir

doi:10.11885/j.issn.16745086.2019.11.21.01

Abstract

Abstract: In order to evaluate quantitatively and to raise the quality of 3D geological model, after clarifying the research purposes and geological characteristics of the study area, by selecting several key indicators, and the analytic hierarchy process is used to get the accurate weight. What is more, according to the development stage of the research area and the quality of geological data, reasonable standards are established, the actual score of each index is obtained by comparing actual model with score criterion, and the shortcomings of the model are by the low items. And the overall quality of three-dimensional geological model is evaluated quantitatively by accumlating actual scores of various indicators. Recent studies suggest that the quality of structural model and sedimentary facies model in the study area is good. However, the quality of attribute model is relatively poor, the score of the entire model is 78; the quality of entire model is medium, and there is still more room for this model improvement. The new geological model has been greatly improved compared with original geological model, the score of final model being 94. The quantitative evaluation of 3D geological model has not only the function of quantitative evaluation of model quality but also the advantage of defermining model's shortcoming, which can constantly improve the quality of the model.

Key words: quantitative evaluation, key indicator, analytic hierarchy process, accurate weight, 3D geological model

CLC Number:

TE122

ZHANG Qinglong, LIU Lei, JIA Zhiwei, LIU Zhongliang. Multilevel Quantitative Evaluation of 3D Geological Model of Complex Fault Block Reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(3): 61-70.

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