GEOCHEMISTRY OF OIL AND IDENTIFICATION OF SOURCE ROCKS IN THE DINAN ARCH-FUBEI SLOPE AREA OF JUNGGAR BASIN
-
摘要: 滴南凸起-阜北斜坡区位于准噶尔盆地中央隆起带东段,其周缘地区有多个生烃凹陷,发育四套烃源岩,具复杂的油源关系。为厘清该区中上侏罗统油源关系,利用多项地化指标进行油源对比,结果表明:A类原油具轻碳同位素,植烷优势明显,高伽马蜡烷指数,表现出了湖相母质输入的特点,与二叠系泥岩具良好亲缘关系;B类原油具重碳同位素,姥鲛烷优势,几乎不含伽马蜡烷等特征,反映了原油母质形成于强氧化的沉积环境,与侏罗系泥岩同源;C类原油各项指标介于以上两类原油之间,是二叠系与侏罗系烃源岩的混源。
-
关键词:
- 油源对比 /
- 碳同位素 /
- 伽马蜡烷 /
- 滴南凸起-阜北斜坡区
Abstract: The Dinan Arch and Fubei Slope are located in the east of the central uplift belt of the Junggar Basin. There are several hydrocarbon depressions and four kinds of source rocks, which make the oil-source rather complicated. In order to make correlation between the source rock and the oil, several geochemical indicators are used for subdivision of the oil into three categories. The A type of oil has light carbon isotope, phytane preponderance and high gammacerane, indicating a lacustrine origin with blood relation to the Permian source rock; the B type of oil has heavier carbon isotope, pristine preponderance and less gammacerane, suggesting that the proto kerogen was formed in a sedimentary environment of strong oxidation. The oil is believed coming from the Jurassic source rock; the C type of oil shows the features in between and is supposed to come from both the Permian and Jurassic source rocks.-
Key words:
- oil-source rock correlation /
- carbon isotope /
- gammacerane /
- Dinan Arch-Fubei Slope Area
-
-
[1] 况昊.准噶尔盆地白家海地区侏罗系地层岩性油气藏成藏规律研究[D].长江大学,2012.[KUANG Hao. Accumulation regularity of lithology reservoirs in Jurassic Baijiahai area, Jungar Basin[D]. JingZhou:Yangtze University,2012.]
[2] 陈建平,梁狄刚,王绪龙,等.彩南油田多源混合原油的油源(一)——烃源岩基本地球化学特征与生物标志物特征[J].石油勘探与开发,2003,30(4):20-24.
[CHEN Jianping, LIANG Digang, WANG Xulong, et al. Oil source identification for the mixed oils derived from multiple source rocks in the Cainan Oilfield, Junggar Basin, Northwest China. Part I:Fundamental geochemical features of source rocks[J]. Petroleum Exploration and Development, 2003, 30(4):20-24.]
[3] 陈建平,梁狄刚,王绪龙,等.彩南油田多源混合原油的油源(二)——原油地球化学特征、分类与典型原油油源[J].石油勘探与开发,2003,30(5):34-38.
[CHEN Jianping, LIANG Digang, WANG Xulong, et al. Oil-source correlation of mixed oils derived from multiple source rocks in the Cainan Oilfield, Junggar Basin, Northwest China, Part Ⅱ:Geochemical characteristics, typing and oil source of typical crude oils[J]. Petroleum Exploration and Development,2003,30(5):34-38.]
[4] 张枝焕,关强.新疆三塘湖盆地二叠系油源分析[J].石油实验地质,1998,20(2):174-181.
[ZHANG Zhihuan, GUAN Qiang. The Permian source rock analysis in the Santanghu basin of Xinjiang[J].Experimental Petroleum Geology, 1998, 20(2):174-181.]
[5] 卢双舫,张敏.油气地球化学[M].北京:石油工业出版社,2007:252-253.[LU Shuangfang, ZHANG min. Hydrocarbon Geochemistry[M]. Beijing:Petroleum Industry Press,2007:252
-253.]
[6] 付欢,王振奇.阜康凹陷中下侏罗统煤系烃源岩地球化学特征[J].石油地质与工程,2011,25(6)32-37.
[FU Huan, WANG Zhenqi. Geochemical characteristics of middle-lower Jurassic coal measure in Fukang sag[J].petroleum Geology and Engineering, 2011, 25(6):32-37.]
[7] Peters K E,Moldowan J M. The Biomarker Guide:Interpreting Molecular Fossils in Petroleum and Ancient Sediments[M]. Prentice Hall,Englewood Cliffs,New Jersey,1993.
[8] 付修根,王剑,汪正江,等.藏北羌塘盆地晚侏罗世海相油页岩生物标志物特征、沉积环境分析及意义[J].地球化学,2007,36(5):486-496.
[FU Xiugen, WANG Jian, WANG Zhengjiang,et al. Biomarkers and sedimentary environment of Late Jurassic marine oil shale[J]. Geochimica, 2007, 36(5):486-496.]
[9] 王铁冠.试论我国某些原油与生油岩中的沉积环境生物标志[J].地球化学,1990,13(3):256-263.
[WANG Tieguan. A contribution to some sedimentary environmental biomarkers in crude oils and source rocks in China[J].Geochimica, 1990, 13(3):256-263.]
[10] Didyk B M,Simoneit B R T,Brassell S C, et al. Organic geochemical indicators of palaeo environmental conditions of sedimentation[J]. Nature,1978,272(5650):216-222.
[11] Powell T G,ten Haven H L,R J S S Pristullkoetter J,et al. Pristane phytane tario as environmental indicator:Discussion and reply[J]. Nature,1998,333(61740):604.
[12] Volkman J K,Maxwell J R. Acyclic isoprenoids as biological markers[C]//Biological Markers in the Sedimentary Record. Elsevier New York,1986:1-42.
[13] Peters K E,Moldowan J M. The biomarker guide:Interpreting molecular fossils in petroleum and ancient sediments[M].Prentice Hall,Englewood Cliffs,New Jersey,1993.
[14] 陈建平.准噶尔盆地东部地区彩南油田及其外围油源精细对比[R].新疆石油管理局勘探开发研究院,2001.[CHEN Jiaping. The Cainan oilfield and the outskirt oil source comparition from eastern Junggar basin[R].Xinjiang Petroleum Administrative Bureau,2001.]
-
计量
- 文章访问数: 1144
- PDF下载数: 1
- 施引文献: 0
下载: