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6篇 您的检索式:作者名="ZHENG LunJu"
    题名 作者 年代 出处 被引量
1Applying terahertz time-domain spectroscopy to probe the evolution of kerogen in close pyrolysis systems显示文摘Terahertz time-domain spectroscopy (THz-TDS) has been used to probe the evolutionary paths of kerogen in selected black mudstone. The evolutionary regime of kerogens (for instance, the immaturity, early maturity, middle maturity, late maturity, and catagenesis stages) can be indicated by the absorption coefficient in the THz region. The present study of identification based on THz-TDS was in good agreement with programmed pyrolysis experiments and suggests that THz technology can act as a nondestructive, contact-free tool for probing the ability to generate hydrocarbons from kerogens.BAO RiMa WU ShiXiang ZHAO Kun ZHENG LunJu XU ChangHong 2013Science China(Physics,Mechanics & Astronomy)2013,56,8:19
2Stable carbon isotopes of gaseous alkanes as genetic indicators inferred from laboratory pyrolysis experiments of various marine hydrocarbon source materials from southern China显示文摘Using high pressure and geological condition simulation vessels, we conducted hydrous pyrolysis experiments of kerogen, solid bitumen and liquid hydrocarbons in southern China in order to study the processes of gas generation and derive geochemical indicators of gas genesis under approximate pressure and temperature. The results indicate that gas generation productivity of different marine material decreased in the order of crude oil (light oil and condensate), dispersed soluble organic matter (solid bitumen and heavy oil), and kerogen. Under identical temperature-pressure regimes, pyrolysates derived from kerogen and dispersed soluble organic matter display drastically different geochemical characteristics. For example, the 13CCO213C1 values of gaseous products from dispersed soluble organic matter are greater than 20‰, whereas those from kerogen are less than 20‰. The 13C1 values of pyrolysates from different marine hydrocarbon sources generally increase with pyrolysis temperature, but are always lower than those of the source precursors. The 13C values of ethane and propane in the pyrolysates also increase with increasing pyrolysis temperature, eventually approaching that of their sources, at peak hydrocarbon generation. At high-over mature stages, the 13C values of ethane and propane are often greater than those of their sources but close to those of coal gases, and thus become ineffective as gas genetic indicators. Ln(C2/C3) can clearly distinguish kerogen degradation gas from oil cracking gas and Ln(C1/C2)-( 13C113C2) can be an effective indicator for distinguishing oil cracking gas from dispersed soluble organic matter cracking gas.LIU WenHui WANG Jie, Tengert QIN JianZhong ZHENG LunJu 2012Science China Earth Sciences2012,55,6:6
3Thermal simulation experiment of organic matter-rich shale and implication for organic pore formation and evolution显示文摘A thermal simulation experiment of diagenesis,hydrocarbon generation and evolution of the organic matter-rich shale was carried out to investigate formation and evolution of organic pores under the constraint from immature,low mature,mature,high mature to overmature geological conditions.The argon ion polishingefield emission scanning electron microscope was used to analyze microscopic features of original samples and simulated samples of various evolution stages.Results showed organic pores could be formed during hydrocarbon generation from biochemical and hypothermal processes in the immature and low mature stages,and the shale shallow-buried depth might be favorable for preservation of organic pores;the generation and evolution of organic pores were of heterogeneity,and the maturity was not a decisive factor which controlled formation and development of organic pores,while the difference in physiochemical structure of organic matter played an important role in formation and evolution of organic pores;the organic pore development was obviously related with the retained oil,and the organic pores formed in the oil generation stage were easily filled by pyrolysis asphalt;organic contraction fractures/organic marginal pores might be important storage spaces for shale gas occurrence,and their development was mainly controlled by the physiochemical structure and evolution degree of organic matters when the chemical adsorbed organic matter was converted into the physical adsorbed organic matter and the free organic matter.Zhongliang Ma Lunju Zheng Xuhui Xu Fang Bao Xiaolu Yu 2017Petroleum Research2017,2,4:4
4Secondary hydrocharbon generation potential from heavy oil ,oil sand and solid bitumen during the artificial maturation显示文摘Zhang Qu Huang Haiping Zheng Lunju 2007Organic geochemistry2007,38,:1
5Effect of Shale Reservoir Characteristics on Shale Oil Movability in the Lower Third Member of the Shahejie Formation, Zhanhua Sag显示文摘To reveal the effect of shale reservoir characteristics on the movability of shale oil and its action mechanism in the lower third member of the Shahejie Formation(Es3l), samples with different features were selected and analyzed using N2 adsorption, high-pressure mercury injection capillary pressure(MICP), nuclear magnetic resonance(NMR), high-speed centrifugation, and displacement image techniques. The results show that shale pore structure characteristics control shale oil movability directly. Movable oil saturation has a positive relationship with pore volume for radius > 2 μm, as larger pores often have higher movable oil saturation, indicating that movable oil is present in relatively larger pores. The main reasons for this are as follows. The relatively smaller pores often have oil-wetting properties because of organic matter, which has an unfavorable effect on the flow of oil, while the relatively larger pores are often wetted by water, which is helpful to shale oil movability. The rich surface provided by the relatively smaller pores is beneficial to the adsorption of immovable oil. Meanwhile, the relatively larger pores create significant pore volume for movable oil. Moreover, the larger pores often have good pore connectivity. Pores and fractures are interconnected to form a complex fracture network, which provides a good permeability channel for shale oil flow. The smaller pores are mostly distributed separately;thus, they are not conducive to the flow of shale oil. The mineral composition and fabric macroscopically affect the movability of shale oil. Calcite plays an active role in shale oil movability by increasing the brittleness of shale and is more likely to form micro-cracks under the same stress background. Clay does not utilize shale oil flow because of its large specific surface area and its block effect. The bedding structure increases the large-scale storage space and improves the connectivity of pores at different scales, which is conducive to the movability of shale oil.NING Chuanxiang MA Zhongliang JIANG Zhenxue SU Siyuan LI Tingwei ZHENG Lunju WANG Guozhen LI Fengxun 2020Acta Geologica Sinica(English Edition)2020,94,2:0
6Genesis of Marine Carbonate Natural Gas in the Northeastern Sichuan Basin,China显示文摘摘要:四川盆是在结构上马厩和充满气体的盆之一,被认为是中国的重要天然气工业底之一。Puguang 和 Jiannan 气体地,在东方四川盆定位了有气体的二块大地从二叠、更低的三叠纪的海洋的碳酸盐被导出。海洋的碳酸盐天然气的开始从东方、西方的四川盆用碳同位素作文和天然气样品的烃部件被检验,并且与 acidolysis 的相比,气体在东方四川盆源于海洋的来源岩石。在海洋的碳酸盐水库的天然气从更早原的油的热分解发源,这被结束并且轻油,然后与二叠、更低的志留纪来源岩石的 kerogen 热分解气体混合了。ZHANG Qu TENGER MENG Qingqiang QIN Jianzhong JIANG Qigui ZHENG Lunju 2008Acta Geologica Sinica(English Edition)2008,82,3:0
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