摘要
吐哈盆地侏罗纪以来属于类前陆盆地,中侏罗世以后,台北凹陷成为北部类前陆拗陷的主体部位,并在燕山期和喜山期形成了一系列前陆冲断带,包括北部山前推覆带、中部的中央断褶背斜带以及南缘的火焰山-七克台前锋带。目前,中央背斜带已发现大量的油气;南缘前锋带和北缘推覆带油气发现较少,勘探潜力还很大,但地质地形等情况复杂,需要配套的相关技术攻关,目前已积累了一定的经验和措施。
Tuha basin is a foreland-like basin after Jurassic and the Taibei sag becomes the main part of north foreland-like depression after middle Jurassic. In Yanshanian and Himalayan stage, a series of foreland thrust belts have formed which include the north foreland nappe belt, the middle central fault-fold anticlinal belt and Huoyanshan-Qiketai frontal zone in the south edge. So far, a great deal of oil and gas have been discovered in the central anticlinal belt, whereas relatively small amount in the south frontal zone and north nappe belt, where the exploration potential is great, but the geologic circumstance is complex. Thus correspondent techniques need to be investigated. Up to now some experiences and methods have accumulated.
出处
《吐哈油气》
2002年第3期201-206,308,共7页
Tuha Oil & Gas
