南襄盆地泌阳凹陷核二段未熟—低熟油勘探潜力分析  

ANALYSIS ON EXPLORING POTENTIAL OF Eh^2 IMMATURE AND LOW-MATURE OIL IN THE BIYANG DEPRESSION OF THE NANXIANG BASIN

作　　者：周小进[1] 吴心一[1] 

机构地区：[1]中国石化石油勘探开发研究院无锡实验地质研究所,江苏无锡214151

出　　处：《石油实验地质》2004年第5期457-461,共5页Petroleum Geology & Experiment

基　　金：中国石化科技开发研究项目(P00039).

摘　　要：对泌阳凹陷核二段沉积环境、沉积特征和烃源岩有机质丰度、类型、演化程度等研究表明,位处深凹的安棚地区发育的泥质岩为未熟—低熟烃源岩,属较好—好的生油岩,提供了丰富的油源。油源对比证实,白云岩区外围的砂泥岩区同样存在有未熟—低熟油,且与白云岩区的未熟—低熟油有相似的地球化学特征,它们均来自核二段泥质烃源岩。安棚白云岩区南北两侧附近的砂泥岩区具有勘探未熟—低熟油藏的潜力。On basis of the depositional environment of member H-2 of Tertiary (Eh^2) and the content, type and maturity of organic matters of source rocks in Biyang Depression of the Nanxiang Basin, it was indicated that mudstone in Anpeng area of the depression was the main immature and low mature source rocks. The mudstone was deposited in deep lake enviroment and could provide abundant immature oil as a result of its good organic type and relative shallow burial depth. Results of correlation of oil and source rock showed that there also was immature and low-mature oil in sandstones in the periphery of dolomite, which had same geochemical characteristics, indicating the same source rocks. There is favorable potential for exploration of immature and low-mature oil in sandstones distributed in both northern and southern sides of Anpen dolomite area.

关 键 词：烃源岩 未熟-低熟油 油源对比 勘探潜力 泌阳凹陷 南襄盆地 

分 类 号：TE122.1[石油与天然气工程—油气勘探]