Abstract: In the past 10 years, through innovative ideas, theoretical innovation and technological innovation, important discoveries and breakthroughs have been made continuously in oil and gas exploration in Jilin exploration area. Seven 100-million-tonnage oil-rich regions and two 100-billion-tonnage gas succeeding fields have been so far discovered. Steady growth of large-scale reserves has been realized for eight consecutive years. The laws of oil and gas geology and discovery in the area are summarized. And exploration potential for oil in mid-shallow layers and for gas in deep layers in southern Songliao Basin, for oil and gas in Yitong Basin, and in Yalujiang basins are analyzed. The exploration tendency in Jilin exploration area in the next 10 years is proposed. The growth of large-scale oil and gas reserves during the 12th and 13th Five- Year Plan periods will further boost the steady and rapid development of Jilin Oilfield.

Key words: oil and gas discovery, large-scale reserves, exploration direction, Jilin exploration area