论文部分内容阅读
于北海挪威地区发现的34/10三角形构造(目前可采埋藏量15亿桶),发育在复杂的断层组中,主要储集岩为侏罗纪砂岩。在勘探前期(1974~1978),从地震勘探资料(1km网状间隔测线)得知,该地区有前白垩纪抬升及高角度不整合。此构造的形成时间控制着储集岩的发育,但具体时间不明,还有储集砂岩的分布范围以及不整合下面的断层形态尚未查清。这是由于原有地震记录不好,其原因之一是侏罗纪以后地层中有天然气.地震能量被这
The 34/10 triangular structure (currently 1.5 billion barrels of recoverable reserves) discovered in the North Sea and Norwegian region develops in a complex faulting formation with the main reservoir rocks being Jurassic sandstones. In the early stage of exploration (from 1974 to 1978), from the seismic exploration data (1 km reticular interval survey), it is known that the area had pre-Cretaceous uplift and high-angle unconformity. The formation time of this structure controls the development of reservoir rocks. However, the specific time is unknown, and the distribution of reservoir sandstone and the fault shape under unconformity have not been identified yet. This is because one of the reasons for the poor original seismic records is the presence of natural gas in the strata after Jurassic. Earthquake energy is this