准噶尔盆地东部沙南—北三台地区油气输导模式

The Oil-Gas Migration Patterns in Sha'nan-Beisantai Area in Eastern Junggar Basin

随着准噶尔盆地勘探实践和研究认识的不断深入,原有对盆地东部沙南—北三台地区油气输导模式的认识受到挑战,原输导模式的认识已无法满足现今油气勘探需要。针对这一问题,对研究区烃源岩展布和输导通道这两个油气输导的关键因素进行了研究,并对沙南—北三台地区2个油田19个油藏进行了深入解剖。在此基础上,提出了准东地区油气短距离垂向运移为主的T型输导新模式,并指出了T型输导模式对油气勘探的意义,为准噶尔盆地东部油气勘探提供了新思路。

With the deepening of exploration practices and researches of Junggar basin in recent years, the previous understandings of the oil-gas migration patterns in Sha＇ nan-Beisantai area in eastern Junggar basin （Jundong area） cannot satisfy the present exploration de-mands. In view of such a challenge, this article studies the source rock distribution and transporting pathways, presents in-depth analysis of 19 oil reservoirs in two oil fields in this studied area, and then proposes new T-type transporting model for dominant oil-gas migration as vertical direction and short distance in Jundong area, including the significance of the T-type model on the petroleum exploration, which provides new idea for the oil-gas exploration in Jundong area.