Advances and prospects in oil and gas exploration and development of Shanxi Yanchang Petroleum (Group) Co.,Ltd

doi:10.3969/j.issn.1672-7703.2018.01.004

Abstract

Abstract: Shanxi Yanchang Petroleum (Group) Co., Ltd (hereinafter referred to as Yanchang Petroleum Group for short) has promoted theoretical and technical research of exploration and development of oil, natural gas and shale gas, in Ordos Basin. The coordinated development of various resources has achieved remarkable results. In the aspect of petroleum exploration, the theory of "alternate accumulation of oil" was put forward. Through quantitative simulation of oil transportation and aggregation, exploration breakthrough of Lower Yanchang Formation had been achieved, and proven geological reserves of 2.75×10⁸t had been found. In terms of oil development, by revealing dual mechanism of seepage-displacement of fractured ultra-low permeability reservoir, development technology of "modest and mild" water injection was established. The natural decline rate of oil fields decreased from 18.22% to 12.6%. Effective development of low-grade oil fields had been achieved. In natural gas exploration and development, by putting forward a new theory of " sand body distribution was controlled by the shoreline frequent migration in shallow water environment" and "the natural gas accumulation was controlled by the mature hydrocarbon source kitchen migration " in the Upper Paleozoic, the Yan'an gas field has been discovered and proved reserves of 6650×10⁸m³ in the southeastern Ordos Basin. In terms of shale gas, the geological cognition of lacustrine basin possessed shale gas accumulation conditions was proposed. Based on supporting technology research, breakthroughs of continental shale gas were achieved. In the future, Yanchang Petroleum Group would continue to adhere to the strategy of "stabilizing oil, boosting gas and intensifying unconventional resources". By keeping pushing forward the exploration and development mode of "integrated geological engineering", to ensure the sustainable development of enterprises.

Key words: Yanchang Petroleum Group, Ordos Basin, alternate accumulation of oil, “modest and mild&rdquo, water injection, Yan'an gas field, continental shale gas

CLC Number:

Wang Xiangzeng. Advances and prospects in oil and gas exploration and development of Shanxi Yanchang Petroleum (Group) Co.,Ltd[J]. China Petroleum Exploration, 2018, 23(1): 36-43.

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