China Petroleum Exploration ›› 2017, Vol. 22 ›› Issue (2): 74-83.DOI: 10.3969/j.issn.1672-7703.2017.02.009

• PETROLEUM GEOLOGY • Previous Articles     Next Articles

Characteristics of petroleum geology and play of petroliferous basins in Japan

Mao Shuwei1,2, Bao Zhidong1, Tian Zuoji3, Wu Yiping3, Song Jian1,2, Zhang Yunyi1,2, Yang Shangfeng1,2, Qin Qin1,2, He Lingyuan1,2   

  1. 1. College of Geosciences, China University of Petroleum (Beijing);
    2. State Key Laboratory of Petroleum Resources and Prospecting;
    3. PetroChina Research Institute of Petroleum Exploration & Development
  • Received:2016-03-18 Revised:2017-02-14 Online:2017-03-10 Published:2017-03-10
  • Contact: 10.3969/j.issn.1672-7703.2017.02.009

Abstract: The principal petroliferous basins in Japan are typical fore-arc basins and back-arc basins. They have complex geological structures that were formed under the joint effects of the tectonic movements of Pacifc Plate, North America Plate, Philippine Sea Plate and Eurasian Plate for a long time. In this paper, these principal petroliferous basins were investigated from the aspects of tectonic setting, sedimentary characteristics and development data. It is shown that the structural evolution of these basins can be divided into four stages, i.e., subduction, basin development, subsidence and compression deformation. The subsidence stage in the Miocene of Neogene is the key period for hydrocarbon generation. The oil and gas discovered are mainly preserved in structural traps, lithologic traps and complex traps of Neogene, as well as the basal fractured reservoirs of pre-Neogene. The oil and gas are horizontally scattered and vertically inhomogeneously distributed. The hydrocarbons in the study area were mainly accumulated in three patterns, i.e., vertical migration-fracture pathway, lateral migration-slope pathway, and self generation-self preservation, with the predominance of vertical migration hydrocarbon accumulation. Plays were taken as evaluation units. Eight plays in the petroliferous basins of the study area were analyzed from the aspect of resource potential. It is indicated that the Niigata Basin, the Kanto Basin, the Gyeongs Basin and the Kitakami Basin are the major oil and gas exploration areas within Japan in the future.

Key words: petroleum geology, play, resource potential, Japan, distribution of oil and gas resources

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