岩性油气藏 ›› 2014, Vol. 26 ›› Issue (3): 101–108.doi: 10.3969/j.issn.1673-8926.2014.03.017

• 油气地质 • 上一篇    下一篇

二连盆地阿尔凹陷下白垩统烃源岩地球化学特征及油源对比

卢学军1,高平2,3,丁修建2,3,陈哲龙2,3,柳广弟2,3   

  1. 1.中国石油华北油田分公司 勘探开发研究院,河北 任丘 062552; 2.中国石油大学(北京) 地球科学学院, 北京 102249; 3.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
  • 出版日期:2014-06-06 发布日期:2014-06-06
  • 第一作者:卢学军(1964-),男,硕士,高级工程师,主要从事油气地质勘探研究工作。 地址:(062552)河北省任丘市华北油田分公司勘探开发研究院。 E-mail:yjy_lxj@petrochina.com.cn

Geochemical characteristics and source rocks and oil-source correlation of the Lower Cretaceous in Aer Sag, Erlian Basin

LU Xuejun1, GAO Ping 2,3, DING Xiujian 2,3, CHEN Zhelong 2,3, L IU Guangdi 2,3   

  1. 1. Research Institute of Exploration and Development, PetroChina Huabei Oilfield Company, Renqiu 062552, Hebei, China; 2. College of Geosciences, China University of Petroleum, Beijing 102249, China; 3. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
  • Online:2014-06-06 Published:2014-06-06

摘要:

阿尔凹陷是二连盆地的一个次级构造单元,勘探程度较低。 下白垩统为二连盆地的主力烃源岩和产油层,在阿尔凹陷广泛发育。 有机地球化学分析表明,阿尔凹陷下白垩统烃源岩有机质丰度高,以Ⅰ—Ⅱ 型为主,低成熟—成熟,已进入大量生烃阶段,其中腾一段烃源岩生烃能力最强,阿四段烃源岩生烃能力稍差;下白垩统烃源岩主要为淡水—微咸水环境,腾一段为偏强还原—弱氧化环境,阿四段为偏弱氧化环境;烃源岩常规甾烷分布特征为 C29>C27>C28,表明其具有以藻类输入为主、陆源有机质输入为辅的生源特征,而腾一段生源输入的差异可能与湖侵及湖退引起的水体深度变化有关。 下白垩统油砂和烃源岩样品的生物标志化合物特征对比表明,腾一段原油来源于腾一段烃源岩,阿尔善组原油可能主要来源于腾一段烃源岩,混有阿四段的油源。

关键词: 成岩作用, 成岩相, 孔隙类型, 盒 8 段, 鄂尔多斯盆地

Abstract:

Aer Sag is one of the sub-structural units in Erlian Basin, with a lower exploration degree. The Lower Cretaceous is proved the major source rocks and oil-producing intervals in Erlian Basin, which is also widely developed in Aer Sag. The organic geochemical analysis indicates that the Lower Cretaceous source rocks in Aer Sag possess high contents of organic matter, its organic matter type is mainly type Ⅰ and type Ⅱ, and its source rock maturity ranges from low-mature to mature indicating the phase of large amounts of hydrocarbon generating. Among them, the first member of Tenger Formation (K1bt1) has the greatest potential of hydrocarbon generation, and followed by the fourth member of Aershan Formation (K1bt4). The Lower Cretaceous source rocks were mainly deposited in the freshwater to brackish water environment. The redox of K1bt4 preferred to a strongly reducing-weakly oxidizing environment, butK1bt4 tended to a weakly oxidizing environment. The distribution characteristics of regular steranes of the Lower Cretaceous source rocks is “C29>C27>C28”. It is shown that the biogenic sources are dominated by algae input, secondly by terrestrial input. In addition, the correlation of biomarker characteristics of oil sands and source rocks from the Lower Cretaceous suggest that K1bt1 oil originated from K1bt1 itself, but Aershan Formation oil might come from K1bt1 and mixed with the oil from K1bt4 source rocks.

Key words: diagenesis, diagenesis facies, pore types, He 8 member, Ordos Basin

[1] Dou Lirong,Chang Liang. Fault linkage patterns and their control on the formation of the petroleum systems of the Erlian Basin,Eastern China[J]. Marine and petroleum geology,2003,20:1213-1224.
[2] 降栓奇,陈彦君,赵志刚,等.二连盆地潜山成藏条件及油藏类型[J].岩性油气藏,2009,21(4):22-27.
[3] 赵贤正,史原鹏,张以明,等.富油新凹陷科学高效快速勘探方法与实践———以二连盆地阿尔凹陷为例[M].北京:科学出版社,2012:4-141.
[4] 任远.二连盆地阿尔凹陷中生界沉积相及储层特征研究[D].青岛:中国石油大学,2011:1-83.
[5] 赵贤正,降栓奇,淡伟宁,等.二连盆地阿尔凹陷石油地质特征研究[J].岩性油气藏,2010,22(1):12-17.
[6] 王权,刘震,赵贤正,等.二连盆地地层岩性油藏“多元控砂—四元成藏—主元富集”与勘探实践(Ⅲ)———“主元富集”机理[J].岩性油气藏,2007,19(4):13-19.
[7] 柳广弟,杨伟伟,冯渊,等.鄂尔多斯盆地陇东地区延长组原油地球化学特征及成因类型划分[J].地学前缘,2013,20(2):108-115.
[8] Peters K E,Walters C C,Moldowan J M. The biomarker guide:Volume 1,biomarkers and isotopes in the environment and human history[M]. 2nd Edition. Cambridge:Cambridge University Press,2005:72-74.
[9] Peters K E,Walters C C,Moldowan J M. The biomarker guide:Volume 2,biomarkers and isotopes in petroleum systems and earth history[M]. 2nd Edition. Cambridge:Cambridge University Press,2005:475-625.
[10] Peters K E,Moldowan J M. The biomarker guide:Interpreting molecular fossils in petroleum and ancient sediments[M]. New Jersey:Prentice Hall,1993:1-363.
[11] Seifert W K,Moldowan J M. Use of biological markers in petroleum exploration[M]∥Johns R B.Biological marks in the Sedmentary record,Amsterdm:Elsevier,1986:261-290.
[12] Huang Difan,Li Jinchao,Zhang Dajiang. Maturation sequence of continental crude oils in hydrocarbon basins in China and its significance[J]. Organic Geochemistry,1990,16:521-529.
[13] Seifert W K,Moldowan J M. The effect of thermal stress on sourcerock quality as measured by hopane stereochemistry [J]. Physics and Chemistry of the Earth,1980,12: 229-237.
[14] Bray E E,Evans E D. Distribution of n-paraffins as a clue to recognition of source beds[J]. Geochimica et Cosmochimica Acta,1961,22(1):2-15.
[15] Scalan E S,Smith J E. An improved measure of the odd-even predominance in the normal alkanes of sediment extracts and petroleum[J]. Geochimica et Cosmochimica Acta,1970,34(5):611-620.
[16] Peters K E,Fraser T H,Amris W,et al. Geochemistry of crude oils from eastern Indonesia[J]. AAPG Bulletin,1999,83(12):1927-1942.
[17] Sinninghe Damsté J S,Kenig F,Koopmans M P,et al. Evidence for gammacerane as an indicator of water column s tratification [J].Geochimica et Cosmochimica Acta,1995,59(9):1895-1900.
[18] Johnson C L,Greene T J,Zinniker D A,et al. Geochemical characteristics and correlation of oil and nonmarine source rocks from Mongolia[J]. AAPG Bulletin,2003,87(5):817-846.
[19] Cranwell P A,Eglinton G,Robinson N. Lipids of aquatic organisms as potential contributors to lacustrine sediments—Ⅱ[J]. Organic Geochemistry,1987,11(6):513-527.
[20] Meyers P A. Organic geochemical proxies of paleoceanographic,paleolimnologic,and paleoclimatic processes [J]. Organic Geochemistry,1997,27(5/6):213-250.
[21] 郎艳,何承全,吴纯光,等.内蒙古二连盆地早白垩世微体浮游藻类[J].微体古生物学报,1999,16(4):369-392.
[22] 袁际华,柳广弟.苏北盆地泰州组原油有机地球化学特征及成因[J].西南石油大学学报,2007,29(6):34-38.
[23] Seifert W K.Steranes and terpanes in kerogen pyrolysis for correlation of oils and source rocks [J]. Geochimica et Cosmochimica Acta,1978,42(5):473-484.
[24] Moldowan J M,Seifert W K,Gallegos E J. Relationship Between Petroleum Composition and Depositional Environment of Petroleum Source Rocks[J]. AAPG Bulletin,1985,69(8):1255-1268.
[25] Czochanska Z,Gilbert T D,Philp R P,et al. Geochemical application of sterane and triterpane biomarkers to a description of oils from the Taranaki Basin in New Zealand[J]. Organic Geochemistry,1988,12(2):123-135.
[26] Grantham P J. The occurence of unusual C27 and C29 sterane predominances in two types of Oman crude oil[J]. Organic Geochemistry,1986,9(1):1-10.
[27] Peters K E,Clark M E,Das Gupta U,et al. Recognition of an Infracambrian source rock based on biomarkers in the Baghewala-1 oil,India[J]. AAPG Bulletin,1995,79(10):1481-1494.
[28] Grosjean E,Love G D,Stalvies C,et al. Origin of petroleum in the Neoproterozoic-Cambrian South Oman Salt Basin[J]. Organic Geochemistry,2009,40(1):87-110.
[29] Kelly A E,Love G D,Zumberge J E,et al. Hydrocarbon biomarkers of Neoproterozoic to Lower Cambrian oils from eastern Siberia [J].Organic Geochemistry,2011,42(6):640-654.
[30] Neves R,McLean D,Bate R H,et al. Mongolia, Tamtsag Basin,evidence for widespread,high quality,mature Lower Cretaceous Source Rock [C]. AAPG International Conference & Exhibition,Bali,Indonesia,2000,84:1469.
[31] Sladen C,Traynor J J. Lakes during the evolution of Mongolia[G]∥Gierlowski-Kordesch E H,Kelts K R. Lake Basins through Space and Time. AAPG Studies in Geology,2000,46:35-57.
[32] Yamamoto M,Bat-Erdene D,Ulziikhishig P,et al. Organic geochemistry and palynology of Lower Cretaceous Züünbayan oil shales,Mongolia[J]. Bulletin of Geological Survey of Japan,1998,49(6):257-274.
[33] 王仁厚,秦德荣,吴炳伟,等.开鲁盆地白垩纪沟鞭藻类及其它藻类[J].微体古生物学报,1996,13(3):303-312.
[34] 万传彪,乔秀云,王仁厚,等.海拉尔盆地红旗凹陷白垩纪非海相微体浮游藻类[J].微体古生物学报,1997,14(4):405-418.
[35] Curiale J A. Origin of solid bitumens,with emphasis on biological marker results [J]. Organic Geochemistry,1986,10 (1/3):559-580.
[36] Peters K E,Snedden J W,Sulaeman A,et al. A new geochemicalsequence stratigraphic model for the Mahakam Delta and Makassar Slope,Kalimantan,Indonesia [J]. AAPG Bulletin,2000,84 (1):12-44.
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