Petroleum Exploration History and Enlightenment of Liaohe Depression in Bohai Bay Basin

doi:10.7657/XJPG20210305

Abstract

Abstract:

Based on a comprehensive review of more than 60 years of oil and gas exploration history in the Liaohe depression, this paper takes the discovery of oil and gas reserves as the main line, and fully considers the important roles of deepening theoretical understanding, improving exploration methods and applying new technologies, and divides the oil and gas exploration process in the Liaohe depression into five stages: regional reconnaissance and extensive exploration with fewer wells, local detailed prospecting and key breakthrough, exploration expanding and large-scale reserves increase, deepening onshore exploration and speeding up beach exploration, and fine exploration and stable development. Based on this, three enlightenments for oil and gas exploration are summarized: (1) The promotion of geological understanding and the application of new technologies are key factors of sustained discoveries of oil and gas reserves; (2) More attention should be paid to the study on fault development and evolution during rifted basin exploration; (3) Special types of oil and gas reservoirs are also important for oil and gas exploration in hydrocarbon-rich sags. The important roles of theoretical knowledge and exploration technologies in oil and gas exploration, and the relationship between faults and oil and gas distribution and enrichment are expounded. Oil and gas accumulation models are summarized for reservoirs inside metamorphic rock, igneous reservoirs and oil and gas reservoirs in shale, in the hope of acting as enlightenment and reference for the stereoscopic exploration of hydrocarbon-rich sags in rifted basins in the eastern China.

Key words: Bohai Bay basin, Liaohe depression, exploration history, exploration stage division, hydrocarbon accumulation model, enlightment, rifted basin

CLC Number:

TE132

LI Xiaoguang, CHEN Yongcheng, LI Yujin, LAN Kuo, LI Jinghan, GONG Weiming. Petroleum Exploration History and Enlightenment of Liaohe Depression in Bohai Bay Basin[J]. Xinjiang Petroleum Geology, 2021, 42(3): 291-301.

Figures/Tables 8

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