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湖湘叠层石生排烃模拟及微生物碳酸盐岩生烃潜力
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  • 英文篇名:Thermocompression simulation of hydrocarbon generation and expulsion for lacustrine stromatolite and hydrocarbon generation potential of microbial carbonates
  • 作者:佘敏 ; 胡安平 ; 王鑫 ; 付小东 ; 王艳清 ; 夏志远 ; 陈薇
  • 英文作者:SHE Min;HU Anping;WANG Xin;FU Xiaodong;WANG Yanqing;XIA Zhiyuan;CHEN Wei;PetroChina Hangzhou Institute of Geology;Key Laboratory of Carbonate Reservoir,CNPC;
  • 关键词:微生物碳酸盐岩 ; 叠层石 ; 生烃模拟 ; 生油产率 ; 生气产率
  • 英文关键词:microbial carbonates;;stromatolite;;hydrocarbon-generating simulation;;oil production rate;;gas production rate
  • 中文刊名:中国石油大学学报(自然科学版)
  • 英文刊名:Journal of China University of Petroleum(Edition of Natural Science)
  • 机构:中国石油杭州地质研究院;中国石油集团碳酸盐岩储层重点实验室;
  • 出版日期:2019-02-18
  • 出版单位:中国石油大学学报(自然科学版)
  • 年:2019
  • 期:01
  • 基金:国家科技重大专项(2016ZX05004002);; 国家自然科学基金青年基金项目(41802159)
  • 语种:中文;
  • 页:17-27
  • 页数:11
  • CN:37-1441/TE
  • ISSN:1673-5005
  • 分类号:P618.13
摘要
利用地层孔隙热压生排烃模拟实验方法,开展叠层石灰岩从低熟—成熟—高成熟系列的热演化模拟实验。结果表明:叠层石灰岩单位有机碳的生油产率随着温度增加先增后降,生油高峰约在360℃,对应最大生油产率约为379. 99 kg/t,排油率为34%~68%;模拟气体产物中以二氧化碳产率最大,其次为氢气产率,烃气产率最小,烃气生成高峰约在380℃,对应最大烃气质量产率为101. 74 kg/t;模拟所得残留油和排出油总体上表现为高含非烃和沥青质、低含饱和烃和芳香烃的特点;在含相同有机碳数量的背景下,叠层石灰岩最大生烃产率小于灰质白云岩和灰色泥岩,但高于泥灰岩,尤其是叠层石灰岩具有更高的烃气产率和更低的有效烃源岩有机碳下限。
        The simulation experiment of thermal evolution of stromatolite limestone from low to high maturity was conducted through the formation porosity thermocompression simulation experiment of hydrocarbon generation. The results show that the oil production rate of organic carbon in stromatolite limestone falls after increasing first with the raise of temperature. The oil generation peak is at 360 ℃ and the maximum oil production rate is 379. 99 kg/t. The amount of oil expulsion rate is between 34%-68%. It is found that the CO_2 has the largest yield,followed by H_2,and hydrocarbon gas shows the smallest yield in the simulated gas product. The generation peak of hydrocarbon gas is at 380 ℃ and the maximum hydrocarbon gas production rate is 101. 74 kg/t. The residual oil and discharge oil product both show the characteristics of more nonhydrocarbon and asphaltene,as well as fewer saturated hydrocarbon and aromatic hydrocarbon. The oil production rate of stromatolite limestone is less than that of argillaceous dolomite and gray mudstone but more than that of marlstone in the same amount of organic carbon. Especially,the stromatolite limestone has higher hydrocarbon gas production rate and lower TOC minimum as resource rocks.
引文
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