新疆石油地质

新疆石油地质 ›› 2002, Vol. 23 ›› Issue (5): 394-396.

• 油气勘探 • 上一篇    下一篇

台北凹陷小草湖次凹油气成藏特点及有利区带

李斌   

  1. 中国石油 吐哈油田分公司 勘探开发研究院,新疆 哈密 839009
  • 收稿日期:2001-12-05 出版日期:2002-10-01 发布日期:2020-08-11
  • 作者简介:李斌(1968-),男,甘肃天水人,工程师,石油地质,联系电话:0902-2766453

The Petroleum Accumulation Characteristics and Favorable Zones of Xiaocaohu Secondary Sag in Taibei Sag

LI Bin   

  • Received:2001-12-05 Online:2002-10-01 Published:2020-08-11
  • About author:LI Bin (1968-), Male, Engineer, Petroleum Geology, Research Institute of Exploration and Development, Tuha Oilfield Company, CNPC, Hami, Xinjiang 839009, China

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摘要： 吐哈盆地小草湖次凹发育多套烃源岩,油源条件好,油气资源丰富,油气勘探潜力巨大;中侏罗统发育三套储盖组合,凹陷内油气藏类型主要为侏罗系三间房组、七克台组的构造-岩性复合型和侏罗系西山窑组的深盆气藏,燕山运动末期是小草湖次凹一次重要的成藏期,古构造、古构造背景和构造-岩性复合型圈闭发育是小草湖次凹成藏主控因素;根据小草湖次凹成藏主控因素评价和优选有利区带,勘探工作取得了良好效果。

关键词: 小草湖次凹, 复合型圈闭, 主控因素, 油气藏

Abstract: In Turpan-Hami basin, multi-source rocks are developed in Xiaocaohu secondary sag,and show good source conditions, abundant petroleum resources and bright prospects for exploration. Three reservoir-cap assemblages developed in Middle Jurassic formed reservoir ty pes in the sag which are structural-lithology oil-gas pools in Sanjianfang formation and Qiketai formation along with deep basinal gas pools in Xishanyao formation of Jurassic. The late Yanshan movement is a major stage for hydrocarbon accumulation in Xiaocaohu secondary sag. The primary controlled factors for its hydrocarbon accumulation is due to its palaeo-structures, tectonic setting and traps with structural-lithology feature. The exploratory efforts has good effectiveness based on these main controlled factors for evaluation and optimization of its favorable zones.

Key words: Xiaocaohu secondary sag, complex trap, dominant factor, hydrocarbon reservoir

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