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

年份	勘探成效综合评价值	排序	等级	年份	勘探成效综合评价值	排序	等级
2013	0.704	1	好	2012	0.326	15	中等
2015	0.477	2	较好	1999	0.314	16	中等
2022	0.425	3	较好	2006	0.311	17	中等
2002	0.413	4	较好	2017	0.302	18	中等
1998	0.408	5	较好	2011	0.298	19	中等
1997	0.402	6	较好	2009	0.291	20	中等
2005	0.390	7	较好	2020	0.287	21	中等
1996	0.389	8	较好	2019	0.277	22	中等
2016	0.388	9	较好	2007	0.237	23	较差
2004	0.371	10	较好	2014	0.231	24	较差
2000	0.361	11	较好	2008	0.223	25	较差
2003	0.354	12	中等	2018	0.151	26	差
2021	0.345	13	中等	2001	0.071	27	差
2010	0.334	14	中等

Table 10 Comprehensive evaluation of exploration success in Sichuan Basin from 1996 to 2022

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 11 k-means cluster to divide centroid data
Table 12 Mean value between two adjacent centroids divided from k-means cluster
Table 13 Grade range divided from k-means cluster