Natural Gas Exploration and Development

Comprehensively evaluating the petroleum exploration success based on PCA and synthetic index method

LIU Hui, WANG Jing, ZHAN Weiyun, LIU Xin, WU Xuefeng, CHEN Chen, ZHOU Zilong, ZHANG Xinyan

Natural Gas Exploration and Development, 2025, 48(2): 49-57. DOI: 10.12055/gaskk.issn.1673-3177.2025.02.005

指标	等级界限1	等级界限2	等级界限3	等级界限4
勘探成效综合评价值	0.171	0.272	0.358	0.554

Table 12 Mean value between two adjacent centroids divided from k-means cluster

Other figure/table from this article

Table 1 Preliminary index system of petroleum exploration success
Table 2 Common methods to screen indexes
Table 3 Common comprehensive evaluation methods
Table 4 Results of PCA adaptability tests
Table 5 Characteristic value in principal components, characteristic-value contribution, and cumulative contribution
Table 6 Loads of principal components
Table 7 Comprehensive scoring coefficients
Table 8 Core index system of petroleum exploration success
Table 9 Weight of core indexes in exploration success
Table 10 Comprehensive evaluation of exploration success in Sichuan Basin from 1996 to 2022
Table 11 k-means cluster to divide centroid data
Table 13 Grade range divided from k-means cluster