西南石油大学学报(自然科学版)2011,Vol.33Issue(3):61-66,6.DOI:10.3863/j.issn.1674-5086.2011.03.009
凯里地区油源对比及油气成藏史分析
Analysis of Oil and Source Rock Correlation and Pooling History in Kaili Area
摘要
Abstract
This paper analyzes geochemistry and oil source and thermal histories in Kali area are discussed by using carbon isotope, saturated hydrocarbon chromatography, steranes and terpanes based on the results of previous researches, the observation of field outcrop and the measuring of oil seepage samples. The results indicate that NO. 47 oil well at Huzhuang and oil seepage hosted in the Ordivican O1h member at Shangqingshan area, as well as the hydrocarbon source rock of asphalt sandstone and oil sand are of the same oil source, mainly originating from upper simian series and lower Cambrian. Oil seepage hosted in the Permian source rocks of DaFengdong area is mainly self-generation and self-storage, and may be the mixture of oils generated from the upper simian series and lower Cambrian source rocks. Hydrocarbon was expulsed by Tectonic movement of late Caledonian and trap formed at suitable time. Although the later period deposits the cap rock superimposition, the source rock of lower Cambrian was not achieving the high mature-overmature stage in the end of Triassic, Before the Yanshanian structure uplifted, maximum temperature of Honghuayuan reservoir was still lower than 175°C(RO<1.3%), and the oil phase to maintain. Deep and shallow structure were uncoordinated and the partial hydrocarbon source rock was re-buried deep again by the thrust-nappe function from the Yanshanian structure.关键词
凯里地区;地球化学特征;油源对比;成藏史Key words
Kaili area/ geochemical characteristics/ oil and source rock correlation/ pooling history分类
能源科技引用本文复制引用
彭金宁,刘光祥,罗开平,吕俊祥..凯里地区油源对比及油气成藏史分析[J].西南石油大学学报(自然科学版),2011,33(3):61-66,6.基金项目
中国石化科技部“中扬子-黔中地区海相烃源岩生烃史研究”(P06005). (P06005)