准噶尔盆地托斯台地区构造分析及油气勘探前景

新疆石油地质 ›› 1992, Vol. 13 ›› Issue (3): 197-205.

准噶尔盆地托斯台地区构造分析及油气勘探前景

许春明, 贺小苏, 吴晓智, 姚新玉

新疆石油管理局勘探开发研究院克拉玛依 834000

收稿日期:1991-12-11 出版日期:1992-09-01 发布日期:2020-07-21

STRUCTURE ANALYSIS AND PETROLEUM EXPLORATION PROSPECT OF TOSTAI AREA IN JUNGGAR BASIN

Xu Chunming, He Xiaosu, Wu Xiaozhi, Yao XinYu

Research Institute of Exploration & Development, Xinjang Petroleum Administration Bureau, Karamay 834000

Received:1991-12-11 Online:1992-09-01 Published:2020-07-21

摘要/Abstract

摘要： 本文在研究了准噶尔盆地南缘西部托斯台地区地面地质及地球物理资料后认为:①托斯台为山前斜坡上的基岩隆起,主要是由北天山山前西部的北西向右旋走滑断裂在喜马拉雅期活动造成的,其前沿斜坡为隆断构遭;②基岩隆起上的背斜构造分为三排:南排背斜有多期活动并伴有南倾中生代正断层,中排和北排背斜形成于喜马拉雅期,是北倾的背冲断裂造成的表皮构造;③托斯台的油气苗主要是喜马拉雅后期从山前的四棵树凹陷运移上来的;④前沿构造为最有利的勘探领域,其中背斜型、断裂遮挡型及基岩型油气藏可能处于同一垂直空间上,

关键词: 准噶尔盆地南缘, 托斯台隆起, 四棵树凹陷, 背冲断层, 油气勘探

Abstract: Based on the comprehensive study of the available outcrop and geophysical data of Tostai area, it is concluded that; 1)Tostai ,a basement platform on the top of the front monocline of the Tianshan mountains, was formed by the northwestward dextral strike slip movement of the western North Tianshan Morntain in Himaiayan period; 2)There are three rows of anticlines on the basdment platform: The southern row of anticiines wcre deformed by several structural movements and accompanted by south- dipping Mesozoic normal faults; the middie and the northern rows were formed during Himalayan movement and are thin-skinned structures resulted from north-dipping back thrust faulting ,3)The oil and gas seepage in Tostai was migrated from Sikeshu depression in the north in late Himalayan period;4 )The frontal structures are the most prospective exploration targets. The anticlinal , the fault-blocked and baserock reservoirs may be penetrated by one vertical well.

Key words: Southern margin of Junggar Basin, Tostai uplift, Sikeshu deptession, Back thtust, Petroleum exploration

许春明, 贺小苏, 吴晓智, 姚新玉. 准噶尔盆地托斯台地区构造分析及油气勘探前景[J]. 新疆石油地质, 1992, 13(3): 197-205.

Xu Chunming, He Xiaosu, Wu Xiaozhi, Yao XinYu. STRUCTURE ANALYSIS AND PETROLEUM EXPLORATION PROSPECT OF TOSTAI AREA IN JUNGGAR BASIN[J]. Xinjiang Petroleum Geology, 1992, 13(3): 197-205.

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