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| 1 | A discussion on the upper limit of maturity for gas generation by marine kerogens and the utmost of gas generative potential:Taking the study on the Tarim Basin as an example显示文摘The experimental data yielded by Rock-Eval pyrolysis, kerogen atomic H/C, Py-GC and gold-tube sealing thermal simulation on the marine Cambrian-Ordovician source rock from the Tarim Basin revealed that the upper limit of maturity for natural gas generation or the 'deadline of gas generation' for marine types I and II kerogens is equal to 3.0% of vitrinite reflectance (Ro); while the 'deadline of gas generation' for type III kerogens typically like coals is as high as 10% Ro. Thus, different organic matter has obviously different utmost maturities for gas generation. The mass-balance calculation by kerogen elements showed that when Ro>1.5%, the utmost amount of gas generation for the marine type II kerogen is less than 185 m3/t TOC, accounting for less than 30% of its total hydrocarbon generative potential; when Ro>2.0%, it becomes 110 m3/t TOC, less than 20% of the total hydrocarbon generative potential. The amount of the gas generative potential obtained by Rock-Eval is only around one tenth of the calculated value by the mass balance of kerogen elements at the same thermal evolutionary stage, while those by Py-GC and gold-tube sealing simulation are intervenient between the above two. The utmost of gas generative potential at the over 1.3% Ro stage is around 60―90 m3/t TOC, therefore, the amount of gas generation obtained by Rock-Eval is the minimum of gas generative potential, while that by the mass-balance calculation of kerogen elements is the maximum that the actual amount of gas generation should not exceed. | CHEN JianPing ZHAO WenZhi XIAO ZhongYao ZHANG ShuiChang DENG ChunPing SUN YongGe WANG ZhaoMing | 2007 | Chinese Science Bulletin2007，52，A01： | 8 |
| 2 | Classification and origin of natural gases from Lishui Sag,the East China Sea Basin显示文摘Natural gases discovered up to now in Lishui Sag,the East China Sea Basin,differ greatly in gaseous compositions,of which hydrocarbon gases amount to 2%―94%while non-hydrocarbon gases are dominated by CO2.Their hydrocarbon gases,without exception,contain less than 90%of methane and over 10%of C2 + heavier hydrocarbons,indicating a wet gas.Carbon isotopic analyses on these hydrocarbon gases showed thatδ13C 1 ,δ13C 2 andδ13C 3 are basically lighter than-44‰,-29‰and-26‰, respectively.The difference in carbon isotopic values between methane and ethane is great,suggesting a biogenic oil-type gas produced by the mixed organic matter at peak generation.δ13C CO2 values of nonhydrocarbon gases are all heavier than-10‰,indicating a typical abiogenic gas.The simulation experiment on hydrocarbon generation of organic matter in a closed gold-tube system showed that the proportion of methane in natural gases produced by terrigenous organic matter in the Lingfeng Formation marine deposit is obviously higher than that in natural gases derived from the aquatic and terrigenous mixed organic matter in the Yueguifeng Formation lacustrine deposit,consequently the proportion of heavier hydrocarbons of the former is remarkably lower than that of the latter.Moreover, δ13C 1 values of natural gases produced by terrigenous organic matter in the Lingfeng Formation marine deposit are about 5‰heavier than those of natural gases derived from the aquatic and terrigenous mixed organic matter in the Yueguifeng Formation lacustrine deposit whileδ13C 2 andδ13C 3 values of the former are over 9‰heavier than those of the latter.Currently the LS36-1 oil-gas pool is the only commercial oil-gas reservoir in Lishui Sag,where carbon isotopic compositions of various hydrocarbon components differ greatly from those of natural gases produced by the Lingfeng Formation organic matter but are very similar to those of natural gases derived from the Yueguifeng Formation organic matter,therefore,natural gases in the LS36-1 oil-gas pool are mainly derived from the Yueguifeng Formation lacustrine source rock rather than the Lingfeng Formation marine or Mingyuefeng Formation coal-measures source rocks. | CHEN JianPing 1,2 ,GE HePing 3 ,CHEN XiaoDong 3 ,DENG ChunPing 1,2 &LIANG DiGang 1,2 1 Research Institute of Petroleum Exploration&Development,PetroChina,Beijing 100083,China 2 Key Lab of Petroleum Geochemistry,CNPC,Beijing 100083,China 3 Shanghai Division,CNOOC,Shanghai 200030,China | 2008 | Science China Earth Sciences2008，51，S1： | 5 |
| 3 | A Mathematical Calculation Model Using Biomarkers to Quantitatively Determine the Relative Source Proportion of Mixed Oils显示文摘从多重来源岩石,和特别地每来源岩石的相对贡献识别混合的油的来源是困难的。当有简历标记的不同集中的二油与对方一起混合时,用不同简历标记的典型的原油和比率的人工的混合实验证明相对贡献变化是非线性的。如果简历标记和一个简单二进制线性方程的比率被用来计算每个结束成员的贡献比例到混合的油,这可以导致一个不正确的结论。有在三的混合模型的结束成员油的混合比例的简历标记比率的变化比在二进制混合模型更复杂。什么时候四或更多的油混合,到混合的油的每结束成员油的贡献比例不能用简历标记比率和一个简单公式被计算。典型的油的人工的混合实验表明在混合的油的简历标记的绝对集中与混合每个结束成员的比例引起一个线性变化。数学推论验证如此的线性变化。一些用到份量上的简历标记的绝对集中或比率的数学计算方法决定在混合的油的每个结束成员的比例从人工的实验并且由理论推理的结果被推出。当混合超过三结束成员时,二个简历标记的比率在二进制混合模型与混合比例作为一条双曲线加重变化,作为在三的混合模型的 hyperboloid,并且作为亢奋的表面。每个结束成员的混合比例能是与这些数学模型一起决定的份量上,用绝对集中和简历标记的比率。数学计算模型比常规人工的混合方法更节俭、方便、精确、可靠。 | CHEN Jianping DENG Chunping SONG Fuqing ZHANG Dajiang | 2007 | Acta Geologica Sinica(English Edition)2007，81，5： | 3 |
| 4 | Formation mechanism of condensates, waxy and heavy oils in the southern margin of Junggar Basin, NW China显示文摘It is a challenge to determine the source and genetic relationship of condensate, waxy and heavy oils in one given complicated petroliferous area, where developed multiple sets of source rocks with different maturity and various chemical features.The central part of southern margin of Junggar Basin, NW China is such an example where there are condensates, light oils, normal density oils, heavy crude oils and natural gases. The formation mechanism of condensates has been seriously debated for long time;however, no study has integrated it with genetic types of waxy and heavy oils. Taking the central part of southern margin of Junggar Basin as a case, this study employs geological and geochemical methods to determine the formation mechanism of condensates,waxy and heavy oils in a complicated petroliferous area, and reveals the causes and geochemical processes of the co-occurrence of different types of crude oils in this region. Based on detailed geochemical analyses of more than 40 normal crude oils, light oils,condensates and heavy oils, it is found that the condensates are dominated by low carbon number n-alkanes and enriched in light naphthenics and aromatic hydrocarbons. Heptane values of these condensates range from 19% to 21%, isoheptane values from1.9 to 2.1, and toluene/n-heptane ratios from 1.5 to 2.0. The distribution of n-alkanes in the condensates presents a mirror image with high density waxy crude oils and heavy oils. Combined with the oil and gas-source correlations of the crude oils, condensates and natural gas, it is found that the condensates are product of evaporative fractionation and/or phase-controlled fractionation of reservoir crude oils which were derived from mature Cretaceous lacustrine source rocks in the relatively early stage. The waxy oils are the intermediate products of evaporative fractionation and/or phase-controlled fractionation of reservoir crude oils, while the heavy oils are in-situ residuals. Therefore, evaporative fractionation and/or phase-controlled fractionation would account for the formation of the condensate, light oil, waxy oil and heavy oil in the central part of southern margin of Junggar Basin, resulting in a great change of the content in terms of light alkanes, naphthenics and aromatics in condensates, followed by great uncertainties of toluene/n-heptane ratios due to migration and re-accumulation. The results suggest that the origin of the condensate cannot be simply concluded by its ratios of toluene/n-heptane and n-heptane/methylcyclohexane on the Thompson's cross-plot, it should be comprehensively determined by the aspects of geological background, thermal history of source rocks and petroleum generation,physical and chemical features of various crude oils and natural gas, vertical and lateral distribution of various crude oils in the study area. | CHEN JianPing DENG ChunPing WANG XuLong NI YunYan SUN YongGe ZHAO Zhe LIAO JianDe WANG PeiRong ZHANG DiJia LIANG DiGang | 2017 | Science China Earth Sciences2017，60，5： | 3 |
| 5 | Mixed oils derived from multiple source rocks in the Cainan oilfield, Junggar Basin, Northwest China. Part II: artificial mixing experiments on typical crude oils and quantitative oil-source correlation显示文摘 | Jianping Chen Chunping Deng Digang Liang Xulong Wang Ningning Zhong Fuqing Song Xinpu Shi Tao Jin Shuzheng Xiang | 2003 | Organic Geochemistry2003，，7： | 1 |
| 6 | Mixed oils derived from multiple source rocks in the Cainan oilfield, Junggar Basin, Northwest China. Part I: genetic potential of source rocks, features of biomarkers and oil sources of typical crude oils显示文摘 | Jianping Chen Digang Liang Xulong Wang Ningning Zhong Fuqing Song Chunping Deng Xinpu Shi Tao Jin Shuzheng Xiang | 2003 | Organic Geochemistry2003，，7： | 1 |
| 7 | Mixed oils derived from multiple source rocks in the Caiman oilfield ,Junggar basin, Northwest China( part Ⅱ ) : artificial mixing experiments on typical crude oils and quantitative oil-corrlation显示文摘 | Chen Jianping Deng Chunping Liang Digang | 2003 | Organic Geochemistry2003，34，： | 1 |
| 8 | Evaluation of hydrocarbon generation of the Xiamaling Formation shale in Zhangjiakou and its significance to the petroleum geology in North China显示文摘The semi-closed pyrolysis simulation system under constant pressure was conducted to explore the characteristics and mechanisms of hydrocarbon generation from Xiamaling Formation shale in Xiahuayuan,North China.The experiment results indicate the oil generated by the Xiamaling Formation shale in oil window should be classified as 'aromatic-intermediate' type,whereas the decreasing of dry coefficient can be ascribed to the cracking of residual bitumen in source rock in the stage of high to post maturity.The amount of hydrocarbon gas generated from residual bitumen can be up to 1-2 m3 per ton rock in high to post mature stage by calculating hydrogen contents in the kerogen,the expelled hydrocarbon,and the residual hydrocarbon.This reveals the importance of residual bitumen as a gas source during high to post mature stage of the kerogen evolution,and also as the broad exploration prospect of these gases.This research highlights the attention should be paid to oil/gas reservoirs sourced from residual bitumen of organic-rich source rock in high mature stage,even the primary oil/gas reservoirs considered as the main exploration targets in middle-upper Proterozoic sediments of North China. | XIE LiuJuan SUN YongGe YANG ZhongWei CHEN JianPing JIANG AiZhu ZHANG YongDong DENG ChunPing | 2013 | Science China Earth Sciences2013，56，3： | 1 |
| 9 | Vendors' perspectives on trust and control in offshore information systems outsourcing显示文摘 | Mao Jiye Lee J N Deng Chunping | 2008 | Information & Management2008，45，7： | 1 |
| 10 | Degradable nanocatalyst enables antitumor/antibacterial therapy and promotion of wound healing for diabetes via self-enhanced cascading reaction显示文摘Diabetic patients often have problems such as residual tumor and wound infection after tumor resection,causing severe clinical problems.It is urgent to develop effective therapies to reach oncotherapy/antiinfection/promotion of wound healing combined treatment.Herein,we propose CS/MnO_(2)-GO_x (CMGO_x)nanocatalysts for the specific catalytic generation of ~·OH to inhibit tumors and bacteria in a hyperglycemic environment.The good biocompatible chitosan (CS),as a carrier for the catalyst,exhibits excellent antibacterial effect as well as promotes wound healing.Glucose oxidase (GO_x) is loaded on the surface of CS nanoparticles to generate H_(2)O_(2) and gluconic acid by consuming glucose (starvation therapy,ST) and O_(2).The MnO_(2) depletes glutathione (GSH) to produce Mn^(2+),amplifying oxidative stress and further promoting the activity of Mn^(2+)-mediated Fenton-like reaction to produce~·OH (chemodynamic therapy,CDT)in weak acidic environment.Moreover,the produced gluconic acid lowers the p H of the environment,enhancing chemodynamic therapy (ECDT).The tumor cells and bacteria are efficiently eliminated by the synergistic effect of ST and ECDT.The MnO_(2) nanoparticles at neutral environment decomposes H_(2)O_(2) into O_(2),which cooperate with CS to promote healing.The self-enhanced cascade reaction of CMGO_x in situ exhibits excellent effects of antitumor/antibacterial therapy and promotion of wound healing,offering a promising integrated treatment for diabetic patients after tumor surgical resection. | Xiang Wang Cheng Ding Ziwen Zhang Chunlin Li Dongmiao Cao Linjing Zhao Guoying Deng Yu Luo Chunping Yuan Jie Lu Xijian Liu | 2023 | Chinese Chemical Letters2023，34，7： | 0 |
| 11 | An Analytic Solution to Well-water Level Changes under Barometric Pressure显示文摘Under barometric pressure,groundwater flow in well-aquifer systems is a kind of hydro-mechanical coupling problem.Applying the flux boundary conditions on borehole wall and water pressure equilibrium conditions inside and outside the borehole wall under barometric pressure(BP),an analytic solution to well-water level changes has been proposed in this paper.The formulation shows that the BP coefficients increase with time and tend to BP constant.The Change of BP coefficients over time depends only on the ratio of transmissivity(T) to the well radius squared(r2w),and has nothing to do with the change in BP.The BP constant only relates to aquifer loading efficiency(B),and has nothing to do with the aquifer transmissivity and well radius.The BP coefficients change over time in the analytic formulation is consistent with the analysis of measured data from the Nanxi wells.Based on the BP coefficient changes over time,a parameter estimation method is suggested and discussed in its application to the estimation of the aquifer BP constant(or B) and transmissivity by using the Nanxi well data. | Liu Chunping Deng Liang Liao Xin Wan Fei Shi Yun | 2011 | Earthquake Research in China2011，25，2： | 0 |
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