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  • 李贤庆

    一直从事煤油气地质、有机地球化学、油气成藏动力学、有机岩石学与煤岩学、以及与含煤油气盆地评价和勘探领域相关的基础与应用研究。

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2009年06月27日

【期刊论文】库车拗陷依南-气藏天然气生成与聚集

李贤庆 肖贤明, 唐永春, 肖中尧, 米敬奎, 刘德汉, 申家贵, 刘金钟

科学通报,2004,49(S1):100~106,-0001,():

摘要

暂无

关键词: 天然气形成, 生烃动力学, 碳同位素, 烃源岩, 依南2气藏 库车拗陷

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2009年06月27日

【期刊论文】Organic Petrological Studies on Immature Source Rocks*

李贤庆 LI Xianqing(李贤庆), ), XIONGBo(熊波)), ZHONG Ningning(钟宁宁)), MA Anlai(马安来)), WANG Tieguan(王铁冠)), and ZHANG Aiyun(张爱云))

Vol. 23 No.1 CHINES E JOURNAL OF GEOCHEMIS TRY 2004,-0001,():

摘要

Organic petrology is a marginal science that is quite practicable. At present, it has developed into a routine research tool that is widely applied in petroleum exploration and assess ment. Based on several years’research of the authors, this paper presents the advances in organic petrological studies on immature source rocks, including the classification and characteristics of macerals, the composition of macerals and types of organic matter, the abundance and evolution of organic matter, oil2prone macerals, hydrocarbon generation and expulsion. All these results show that organic petrology is of considerable value pertaining to its application in the assessment of immature oil and gas. The immature source rocks consist of various macerals with obvious heterogeneity, contain different hydrocarbon-generating macerals with different oil thresholds and oil peaks, and show a two-staged evolutionary pattern of organic matter.

关键词: immature source rock, maceral, evolution of organic matter, hydrocarbon-generating maceral, organic petrology

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2009年06月27日

【期刊论文】The generation and accumulation of natural gas from Yinan 2 gas pool in Kuqa Depression

李贤庆 LI Xianqing, XIAO Xianming, TANG Yongchun, XIAO Zhongyao, MI Jingkui, LIU Dehan, SHEN Jiagui & LIU Jinzhong

Chinese Science Bulletin 2004 Vol. 49 Supp.1 107-114,-0001,():

摘要

By using the methods of hydrocarbon generation kinetics and carbon isotope kinetics, combined with geological background of natural gas pool formation, the generation and accumulation of natural gas from Yinan 2 gas pool was studied in Kuqa Depression of the Tarim Basin. Natural gas of Yinan 2 gas pool is mainly' derived from Middle and Lower Jurassic coal-bearing source rocks, and generally belongs to long time-accumulated gas. It is suggested that Yinan 2 gas is chiefly accumulated in the last 5Ma, its Ro ranges from 1.25% to 1.95%, and the loss rate of natural gas is about 25%-30%. This work not only complements and reduces the deficiency of formation model of natural gas pools which traditionally depends on the matching relation-ships between source rock, reservoir, cap rock, and trap, but also is a useful reference in the study of other gas pools.

关键词: natural gas formation,, hydrocarbon generation kinetics,, carbon isotope,, source rock,, Ylnan 2 gas pool,, Kuqa Depression.,

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2009年06月27日

【期刊论文】塔里木盆地库车坳陷烃源岩生成甲烷的动力学参数及其应用

李贤庆 ), 肖贤明), 米敬奎, TANG Yongchun), 肖中尧), 刘德汉), 申家贵), 刘金钟)

地质党报,2005,79(1):133~142,-0001,():

摘要

In a thermal simulation experiment of closed-system gold tube-high pressure vessels under a given pressure (50M Pa) and calculation with the specific Kinetics and GOR2Isotope Kinetics softw are's, kinetic parameters of gas generation and methane carbon isotope from Triassic-Jurassic source rock sin the Kuqa dep ression of the Tarim Basin are obtained. The ranges of activation energies of methane paralyzed from Jurassic coal, Jurassic mudstone and Triassic mudstone in the Kuqa Dep ression are 197~268kJömol, 180~260kJ/mol, and 214~289kJ/mol, respectively. The frequency ratios are 5.265×1013/s, 9. 761×1011/s, and 2. 270×1014/s. Th is suggests that there are different activation energies and frequency ratios for methanes generated from Jurassic coal, coal-associated mudstone and T riassic mudstone in the Kuqa Dep ression, and reflect their differences of hydrocarbon generation behaviors. The kinetic parameters of methane carbon isotope are also different in Jurassic coal, Jurassic mudstone and Triassic mudstone. Their average activation energies were 228kJ/mol, 205kJ/mol, and 231kJ/mol, respectively. On the basis of the above research, combined with the geological background, the origin of natural gas in the Yinan-gas pool was further discussed using these kinetic parameters, and its gas accumulation model is thus established. The natural gas of the Yinan 2 gas poolwas primarily derived from Jurassic coal2bearing source rock s at the center of the Yangxia Sag and generally belong to the staged accumulative gas. The Yinan 2 gasw asmainly gathered at 5~0Ma with a Ro range of 1.25%~1. 95% and lost about 25%~ 30%.

关键词: 烃源岩, 甲烷生成, 碳同位素, 动力学, 库车坳陷, 塔里木盆地

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2009年06月27日

【期刊论文】Characteristics of Organic Components in Formation Waters and Their Relations to Natural Gas Reservoirs in Central Ordos Basin*

李贤庆 LI XIANQING, ), HOU DUJ IE), HU GUOYI), LIU CHANGQING), AND TANG YOUJUN)

Vol. 22 No.2 CHINES E JOURNAL OF GEOCHEMIS TRY 2003,-0001,():

摘要

Isotachophoresis results indicate that the total concentrations of organic acids in Ordovician formation waters range from 9.17mg/L to 94.49mgPL and are obviously higher than those of Permo-Carboniferous formation waters. But both of them have the same compositional characteristics, i.e., acetic acid > > formic acid > propanoic acid > butanoic acid. The total alkyl phenol contents of Ordovician formation waters range from 0.57mg/L to 4.73mg/L, averaging 1.77mg/L. Among the samples for phenol detection, 47.06% samples contain less than 1.0mg/L, 35.29% samples 1.0-3.0mg/L, and only 17.65% samples more than 3.0mg/L alkyl phenol. The concentrations of organic acids and alkyl phenols in the Majiagou formation waters are of obviously heterogeneous distribution. There are several areas where the concentrations of organic acids and phenols are high in central Ordos Basin. These organic acid and phenol-high areas (organic acids >45mg/L and phenols > 2.0mg/L) are consistent with natural gas reservoir enriched areas in central Ordos Basin.

关键词: formation water, organic acid, alkyl phenol, Ordovician, gas reservoir, central Ordos Basin

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2009年06月27日

【期刊论文】鄂尔多斯盆地中部气田天然气混源的地球化学标志与评价

李贤庆 胡国艺, 李剑, 张爱云.侯读杰, 唐友军

地球化学,2003,32(3):282~290,-0001,():

摘要

Gas sources of Ordovician weathered crust gas reservoirs in Central Gas Field in the Ordos basin are an important problem that has not been completely solved. On the basis of a large number of previous research, geochemical characteristics and indexes of mixed origin natural gases i~om Ordovician weathered crust gas reservoirs in Central Gas Field in the Ordos Basin are systematically studied. The gas sources from this gas field are also discussed through the comprehensive analyses of many indexes. The results demonstrate that natural gases from Ordovician weathered crust reservoirs in Central Gas Field in the Ordos Basin have the characteristics of gas components and isotope compositions of high mature and over-mature dl7 gases. In Central Gas Field in the Ordos Basin, there are both coal-ibrmed gas and oil-type gas, the ibrmer of which comes from Permo-Carborrfierous coal measures and the latter originates from lower Paleozoic marine carbonate. The coal-ibrmed gas is mainly located in the eastern part of Central Gas Field while oil-type gas lies in the northern, western and southern parts of Central Gas Field in the Ordos Basin.

关键词: 奥陶系风化壳, 天然气藏, 气源, 中部气田, 鄂尔多斯盆地

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2009年06月27日

【期刊论文】碳同位素动力学模拟及其在天然气评价中的应用

李贤庆 肖贤明, 田辉, TANG Yong-chun, 方家虎, 周强

地学前缘(中国地质大学(北京);北京大学):2005,12(4):543~550,-0001,():

摘要

The modelling of carbon isotope kinetics of natural gas is a leading research direction in oil and gas geochemistry at home and abroad1 Combined with basin sedimentary burial and geothermal histories, the modelling of carbon isotope kinetics provides a new and effective means for evaluating the origin and accumulation history of natural gas pools1 In this paper, we briefly introduce the modelling of carbon isotope kinetics of natural gas formation and its applications to the assessment of natural gas maturity, the determination of gas source, the history of gas migration and accumulation, and the oil-gas ratio1 We show that this approach is of great value for those applications1 The carbon isotopic characteristics of natural gas are not only affected by gas source and maturity, but also are related to accumulation conditions and the geothermal gradient in a basin1 There are obvious differences in the characteristics of carbon isotope ratios between instantaneous gas and cumulative gas1 The kinetic model of carbon isotope fractionation may be different for different basins, which depends on gas source condition, accumulation history and sedimentary-tectonic history1 Since the origin of natural gas pools in the superposed basins of our country is very complicated, and because natural gas pools have features of multiphase and variable gas-sources, this paper may provide new thought s for the study and evaluation of natural gas1

关键词: 天然气形成, 稳定碳同位素, 动力学模拟, 气藏评价

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