Gypsum/salt beds are widely developed in petroliferous basins across the world. Most basins with gypsum/salt beds have been proven to host abundant hydrocarbon resources. Previous studies on the effects of gypsum/salt beds on hydrocarbon reservoirs primarily focused on their excellent sealing property as cap rocks. However, an increasing number of exploration discoveries have shown that gypsum/salt beds have the potential to promote the formation of high-quality source rocks and hydrocarbon reservoirs. Gypsum/salt beds influence the generation, preservation and accumulation of hydrocarbons. Based on the systematic analysis of the generation of hydrocarbons in global gypsum/saltbearing sequences, the study discussed the control of gypsum/salt beds on play elements, and explore the relationship between the development of gypsum/salt beds and global large- and medium-scale hydrocarbon reservoirs. Furthermore, we analyzed the correlation between typical gypsum/saltbearing sequences and their hydrocarbon generation potentials in China. In-depth analysis shows three patterns in terms of the spatial superimposition of gypsum/salt beds and source rocks, that is, postsalt pattern, inter-salt pattern and pre-salt pattern. Among others, the source rocks of the inter-salt pattern are widely developed in salt basins and of great potential for hydrocarbon exploration. (c) 2023 Sinopec Petroleum Exploration and Production Research Institute. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
National Natural Science Foundation of China (NSFC),Petrochemical Joint Fund
地址
Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
SINOPEC, Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China
Sinopec Key Lab Petr Accumulat Mech, Wuxi 214151, Jiangsu, Peoples R China