白音查干凹陷北部陡坡带油气勘探
Petroleum Prospecting in the Northern Abrupt Slope Zone in Baiyinchagan Sag
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摘要: 结合二连盆地及渤海湾盆地具有相似结构类型凹陷的陡坡带勘探经验,及其油气成藏控制因素,油藏分布特征和成藏规律,深入研究了白音查干凹陷北部陡坡带的3种构造样式的形成,并对陡坡带存在的8种类型圈闭以及已钻11口井的钻探效果进行了分析,预测出白音查干凹陷陡坡带5个有利勘探目标。Abstract: Based on the experiences of petroleum exploration, the control factors of hydrocarbon accumulation, reservoir distribution features and reservoir - forming patterns in abrupt slope zone with similar structures in Erlian and Bo- hai Bay basins, this paper profoundly studies the formation of the 3 structural styles in the northern abrupt slope zone in Baiyinchagan sag; analyzes the 8 types of traps in the zone and the effects of the 11 exploratory wells; and predicts that there exist 5 favorable exploration targets in the zone.