CAJ | 학술논문

在戴南组一段寻找隐蔽油气藏是金湖凹陷近年来的重要勘探方向。结合地质背景，利用重矿物含量及组合、砂岩岩石学特征、砂岩百分含量等对金湖凹陷南部戴一段的物源体系开展了研究，认为区内主要存在来自西南方向和来自北东方向经较长距离搬运的两大远源沉积，同时还存在来自工区南部经短距离搬运的近源沉积。戴一段早、中、晚期砂岩分布既有继承性也存在差异性，龙岗次凹东部是寻找隐蔽油气藏的最有利地区。
재대남조일단심조은폐유기장시금호요함근년래적중요감탐방향。결합지질배경，이용중광물함량급조합、사암암석학특정、사암백분함량등대금호요함남부대일단적물원체계개전료연구，인위구내주요존재래자서남방향화래자북동방향경교장거리반운적량대원원침적，동시환존재래자공구남부경단거리반운적근원침적。대일단조、중、만기사암분포기유계승성야존재차이성，룡강차요동부시심조은폐유기장적최유리지구。
Searching subtle traps in first member of Dainan Formation （ E2d1） is one of the important tasks in Jinhu Sag. From the aspects of heavy mineral content, mineral composition and sandstone percentage, the provenance of E2 d1 in the South of Jinhu Sag was analyzed in combination with the tectonic. The results indicated that there were two major far sedimentary provenance,in which one came from the southwest and the other came from northeast. In addition, there was a secondary provenance which was a short distance transportation and quick accumulation from south of the area. From early to late, the direction of the provenance was inherited, but sandstone distributed differently. The east of Longgang Depression is considered as the advantageous area of seeking subtle reservior.