摘要
在阿拉善地区开展油气勘探工作,应从全区着眼,在以往工作的基础上,运用地质、地球物理、钻井等方面获取的资料,首先解决盆地划分问题,在盆地内部正确划分出构造单元。其次解决油气系统的划分,并且在油气生成、运移、聚集和再次运移、聚集的整个系统中,去寻找靶区。阿拉善地区有两个含油气系统:侏罗系含油气系统,已见低产油藏,关键问题是烃源区大小和丰度;石炭系含油气系统的关键问题是盖层条件和圈闭的完整度。
The hydrocarbon prospecting efforts in Alashan area should see from the angle of full-scale domain,on the basis of previous studies,by means of the data from geology,geophysics,drilling,etc.,the basinal classification problem has to be dealt with first of all,i.e.,properly proposing its structural units within the basin;secondly,providing its petroleum systems so that find out target zone in the whole systems including hydrocarbon generation,migration,ac-cu mulation,re-migration and re-accumulation.There exist two petroleum systems:Jurassic petroleum system in which oil reservoir with low productivity has been found,the key problem is to understand and determine the size of hydrocar-bon source area and hydrocarbon bearing abundance;Carboniferous petroleum system,the key problem is to understand and determine the conditions of cap rocks and the integrity of traps.
出处
《新疆石油地质》
CAS
CSCD
2002年第5期435-438,共4页
Xinjiang Petroleum Geology
