特种油气藏2025，Vol.32Issue(3)：16-25,10.DOI:10.3969/j.issn.1006-6535.2025.03.003
开平向斜海陆过渡相煤系气成藏特征及勘探方向
Accumulation characteristics and exploration directions of coal-measure gas in the marine-continental transitional facies of the Kaiping Syncline
摘要
Abstract
The Kaiping Syncline is one of the potential blocks with the most exploration value of coal-measure un-conventional natural gas in Hebei Province,but the lack of systematic research on the accumulation geological con-ditions and the accumulation mode of the Kaiping Syncline restricts the exploration and development process of coal-measure gas in this area.In this regard,through the analysis of test data and the combination of the"three histories(burial history,thermal history,and organic matter maturation history)"simulation and other means,the geolog-ical conditions,evolutionary process and mode of accumulation in this area were comprehensively analyzed,and the favorable exploration direction of this area was also analyzed.The results show that The study area has the geolog-ical conditions for coal-measure gas accumulation;the Early Triassic and Middle Jurassic-Late Cretaceous are the periods of all-round and efficient accumulation for coal-measure gas;the study area is predominantly characterized by the northwest-wing structural-lithological-hydrological sealing gas accumulation mode,the core lithological sealing gas accumulation mode,and the southeast-wing stratigraphic-lithological sealing gas accumulation mode;and the northwestern wing of Kaiping Syncline is the most favorable area for the next step of exploration and devel-opment.The study results are of some significance for the subsequent exploration and development of coal-measure gas in the Kaiping Syncline.关键词
煤系气/成藏地质/成藏演化/成藏模式/海陆过渡相/开平向斜Key words
coal-measure gas/geology of accumulation/evolution of accumulation/accumulation mode/marine-continental transitional facies/Kaiping Syncline分类
能源科技引用本文复制引用
李澎,李正,张爱印,张健雅..开平向斜海陆过渡相煤系气成藏特征及勘探方向[J].特种油气藏,2025,32(3):16-25,10.基金项目
河北省"三三三人才工程"资助项目"河北省开平向斜煤系气叠置成藏过程与富集模式研究"(C20221057) （C20221057）
河北省煤田地质局公共财政专项资金"开平向斜煤系地层综合气资源潜力调查评价"(13000021MY3U4MEAG7BO9) （13000021MY3U4MEAG7BO9）
