川中地区微构造与烃储的关系

RELATIONS BETWEEN THE HYDROCARBON AND THE MINI-STRUCTURES IN THE CENTRE OF SICHUAN PROVINCE

四川石油地质勘探开发研究院

根据川中侏罗系和晚三迭系裂缝性油气层独特的表现,文章讨论了裂缝发育带(即有产部位)与储层微构造(或拱曲)之间的关系,指出在这种平缓构造地区勘测微构造的必要性。文中叙述了用一种勘探微构造的方法——倾角递推法——在遂南地区作初步试验所得到的良好结果。

Based on the unique feature of the fissure oil-bearing reservoir of Jurassic and Upper Triassic System in the centre of Sichuan Province,the relations between the zone to be covered with fissures (namely, the oil producing region) and the oil-bearing mini-structure (the so called"arch") were examined. It has been pointed out that it is highly necessary to search for the mini-structures in the region of gentle slope. A technique ofsearching for the mini-structures-the dip-recurring technique-and its good results obtained from the preliminary tests in the south of Suining County were described and presented as well.