第27卷第5期 2013年10月
现代地质 GEOSCIENCE
Vol.27No.5
Oct.2013
准噶尔盆地南缘侏罗系烃源岩排烃效率研究郭继刚1,2，李建华3，庞雄奇1,2，向才富1,2，姜福杰12，王鹏威1,2
（1.中国石油大学（北京）油气资源与探测国家重点实验室，北京102249；
00（
摘要：准噶尔盆地南缘下部成藏组合勘探日趋重要，其主力烃源岩生烃潜力和排烃效率的研究垂待加强。根据排烃门限理论，利用生烃潜力法建立了准噶尔盆地南缘侏罗系烃源岩的生、排烃模式，并计算了烃源岩的生烃量、排烃量和排烃效率。研究表明，准噶尔盆地南缘侏罗系泥质烃源岩和煤层的排烃门限对应的镜质组反射率均为0.7%。侏罗系烃源岩的总生烃量为3973.84×10°t，总排烃量为1402.71×10°t，其中八道湾组烃源岩排烃量占总排烃量的69.85%。准噶尔盆地南缘侏罗系烃源岩的平均排烃效率为35.30%，不同层系不同岩性烃源岩，其排烃效率明显不同，泥质烃源岩排烃效率远大于煤层。综合分析认为，准噶尔盆地南缘侏罗系烃源岩生、排烃量大，排烃效率较高，下部成藏组合以罗系烃源岩为主力烃源岩，具有良好的资源潜力。
关键词：排烃效率；排烃门限；烃源岩；侏罗系；下部成藏组合；准噶尔盆地南缘
中图分类号：TE122.1
文献标志码：A
文章编号：10008527(2013)05108108
Study on Expulsion Efficiency of Hydrocarbon for the Jurassic Source Rock
in the Southern Margin of Junggar Basin
GUO Ji-gangl-2, LI Jian-hua", PANG Xiong-qi'-2, XIANG Cai-fu'-2, JIANG Fu-jiel.2, WANG Peng-wei'.2
(1. State Key Laboratory of Petroleum Resources and Prospecting, China Unizersity of Peroleum, Bejing102249, China ;
2. Basin and Resentoir Research Center, China Unirersiry of Petroleum, Bejing102249, China;
3. Sinochem Petroleum Exploration & Production Co., Ld., Bejing100031, China)
Abstract: The below oil-reservoir combination in the southern margin of Junggar basin is playing an importan role in the hydrocarbon exploration, thus it is necessary to focus our attention on the research on hydrocarbon potential and expulsion efficiency of hydrocarbon of chief source. In this paper, based on the theory of hydrocar-aosseosaeeaoea aoaa tablished and their quantity of hydrocarbon generation and expulsion, expulsion efficiency of hydrocarbon were calculated by using the hydrocarbon-generation potential method. The results showed that the vitrinite reflec tance corresponding to hydrocarbon-expulsion threshold of both mudstone and coal seam is O. 7% . The total hy-drocarbon generation quantity and the total hydrocarbon expulsion quantity of the Jurassic source rocks are 3,973. 84 × 10°t and 1,402. 71 × 10°t respectively. Of all the hydrocarbon expulsion quantity, 69. 85 percenta-ges of them were expulsed by the source rocks in Badaowan Formation. The average hydrocarbon expulsion effi-ciency of Jurassic source rocks is 35. 30% in the southern margin of Junggar basin. The hydrocarbon expulsion efficiency of source rock with different series of strata and different lithology is obviously different. The hydrocar bon expulsion efficiency of mudstone is much higher than that of coal seam. In general, source rocks in the Ju
收稿日期：2013-02-28；改回日期：2013-05-17；责任编辑：孙义梅。
基金项目：国家自然科学基金项目（41102085）；国家自然科学基金项目（U1262205）；国家重点基础研究发展规划"973"项目
（2011CB201102）；国家科技重大专项项目（2011ZX05006-006）。
作者简介：郭继刚，男，博士研究生，1986年出生，地质资源与地质工程专业，主要从事油气成藏机理与资源评价研究。
Email:guojigang1986@126.com。
通信作者：庞雄奇，男，教授，博土生导师，1961年出生，地质资源与地质工程专业，主要从事盆地分析、油气资源评价、油
气成藏机理方面研究。Email：pangxq@cup.edu.cn。