Research progress of petroleum geology and exploration technology in Ordos Basin

doi:10.3969/j.issn.1672-7703.2021.03.003

Abstract

Abstract: Ordos Basin is the second largest sedimentary basin in China, which has abundant oil and gas resources and broad exploration prospect. In recent two decades, growth in oil and gas reserves and production is the fastest in Ordos Basin, and now it is the largest oil and gas producing basin and the largest natural gas producing region in China. Through more than 50 years of research, Changqing Oilfield has innovated five petroleum geological understandings, including “shale oil of continental freshwater lake basin, large delta of inland depression lake basin, Jurassic paleogeomorphic oil reservoir group, continental tight sandstone gas, and Ordovician karst paleogeomorphic natural gas”. Moreover, three technology series have been developed in terms of “3D seismic exploration in loess plateau, logging identification and evaluation technology of low-permeability tight oil and gas layers, and volume fracturing of low-permeability tight reservoir”. As a result, four billion-ton-level large oil regions and three trillion-cubic-meter-level large gas regions have been discovered, contributing a lot to the national energy and resource security and providing important experience and reference for the exploration of similar basins at home and abroad.

Key words: Ordos Basin, Changqing Oilfield, petroleum, natural gas, geological understanding, technological innovation, exploration result

CLC Number:

TE122.1

Fu Jinhua, Dong Guodong, Zhou Xinping, Hui Xiao, Dan Weidong, Fan Liyong, Wang Yonggang, Zhang Haitao, Gu Yonghong, Zhou Guoxiao. Research progress of petroleum geology and exploration technology in Ordos Basin[J]. China Petroleum Exploration, 2021, 26(3): 19-40.

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