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Formation and influencing factors of carbonate source rock of the Lower Permian Chihsia Formation in Chaohu region, Anhui Province

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Science China Earth Sciences 2011年第12期54卷 1926-1939页

作者： LIU Feng CAI JinGong LU BingQuan xu jinli State Key Laboratory of Marine Geology Tongji University Shanghai 200092 China

Highly-mature carbonate source rock is essential to the exploration of oil and gas in southern China. In this study, the carbonate strata in the relatively well-developed Lower Permian Chihsia Formation (located in Chaohu, Lower Yangtze) were targeted, and the formation and influencing factors of source rock were discussed based on paleoenvironment reconstruction using comprehensive sedimentology, palynofacies, and organic geochemistry data. The results demonstrate that the Chihsia Formation is oxygen-deficient biogenic carbonate sediments, with marked variations in the organic and inorganic components, formed during a period of Permian transgression. The formation of source rock is the combined result of high bioproductivity and oxygen-deficient environment generated by transgression and oxygenation events which frequently occurred during transgression periods. Source rock was affected by self-dilution effects and diagenesis, causing its heterogeneous distribution in many intervals. Source rock is over 40 m thick, and can be identified based on its different organic, biological, and mineral composition characteristics. The carbonate rock appears to require no specific clay content in order to become a source rock. The combination of sedimentology, palynofacies, and organic geochemistry has provided an effective means for evaluating and predicting high-maturity carbonate source rock in the region.

关键词： lower Yangtze Chihsia Formation palynofacies paleoenvironment carbonate source rock heterogeneous distribution

Fluorescence intensity studies of Triassic acritarchs from the Yanchang Formation in Ordos basin,northwestern China

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Frontiers in Biology 2007年第4期2卷 479-483页

作者： JI Liming MENG Fanwei xu jinli Research Centre of Oil and Natural Gas Resource Institute of Geology and GeophysicsChinese Academy of SciencesLanzhou 730000China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Geological Sciences Research Institute of Shengli Oilfield Dongying 257000China

Fluorescence properties of Early Cambrian acri-tarchs were investigated using Leica das Mikroskop(DM)microscopy with a mercury ***-preserved autoflures-cence properties show a correlation between acritarchs morphology and the intensity of emitted *** accordance with the fluorescence intensity of organic cell walls,two groups of microfossils were *** of observation in this study,which are consistent with those of the previous foreign studies,are in good agreement with regular difference in autofluorescence intensity among paly-nomorphs reported by McPhilemy(1998).Spores and algae,including Botryococcus,have very bright fluorescence while acritarchs often show less intense *** brown microfossils have been reworked,and have little or no fluorescence.

关键词： acritarchs flurescence Yanchang Formation Triassic

Research on preservation and enrichment mechanisms of organic matter in muddy sediment and mudstone

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Science China Earth Sciences 2007年第5期50卷 765-775页

作者： CAI JinGong BAO YuJin YANG ShouYe WANG XingXin FAN DaiDu xu jinli WANG AiPing State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China Institute of Earth Sciences Shengli Oil CompanyDongying 257015China

Using multidiscipline methodologies, the differences in preservation and enrichment mechanisms of organic matter (OM) in muddy sediment and mudstone are investigated. In clay fractions, concentrations of TOC and chloroform bitumen “A” are significantly higher than those in coarser fractions. This indicates that clay minerals (CM) play an important role in enriching OM. The content of chloroform bitumen “A” increases obviously in the clay fraction, which reveals that dissolvable OM is the main composition of coalesce with clay minerals. Furthermore, TG and DTA data show that OM enrichment mechanisms and preservation forms have multiplicity. Several exothermic peaks in the DTA curves demonstrate that muddy sediment and mudstone contain a number of bioclasts and amorphous OM besides dissolvable OM. Through analyzing with XRD and DTA after mudstone samples were pretreated, the conclusions can be arrived at. Firstly, CM interlayer space of XRD curves and exothermic peaks of DTA curves both change as temperature increases. Secondly, the changes of CM interlayer space and exothermic peaks are concordant and stable around 350°C. All these are the features that OM enters CM interlayers to form stable organo-clay complexes. Therefore, the combination format of OM with CM is not only surface adsorption, partial OM enters CM interlayers to form stable organo-clay complexes. Finally, through the research on OM preservation forms and enrichment mechanisms in muddy sediment and mudstone, the hydrocarbon-generation processes and the global carbon cycle and budget can be explained.

关键词： clay minerals dissoluble organic matter organo-clay complexes organic-matter enrichment mechanisms

生物样品中汞的电感耦合等离子体质谱分析与干扰校正方法

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岩矿测试 2025年第1期44卷 140-148页

作者：张灵火马娜陈海杰张鹏鹏胡梦颖徐进力白金峰中国地质科学院地球物理地球化学勘查研究所河北廊坊065000 自然资源部地球化学探测重点实验室河北廊坊065000

电感耦合等离子体质谱法(ICP-MS)在测定生物样品中的Hg时,由于Hg元素的电离能高、电离效率低,且存在W的氧化物等多原子离子干扰,很难进行直接准确测定,加之生物样品中有机质含量高,基体复杂,也会导致分析结果产生偏差。本文通过比较标... 详细信息

电感耦合等离子体质谱法(ICP-MS)在测定生物样品中的Hg时,由于Hg元素的电离能高、电离效率低,且存在W的氧化物等多原子离子干扰,很难进行直接准确测定,加之生物样品中有机质含量高,基体复杂,也会导致分析结果产生偏差。本文通过比较标准模式(STD)和动能歧视模式(KED)下测定Hg的质谱干扰情况,表明在STD模式下200Hg、202Hg均受到W、Re、Os、Er、Dy等元素多原子离子的干扰,而KED模式有效地降低了干扰;在KED模式下选择202Hg作为分析同位素,Er、Dy、Re、Os等对Hg的干扰可以忽略不计,而W的氧化物干扰仍难以完全消除。进而详细研究了KED模式下W对Hg测定的质谱干扰,Hg所受干扰程度与W含量呈线性相关(R2=0.9997),可利用KED模式结合数学校正法消除W的质谱干扰;优选了样品稀释倍数和内标元素,选择稀释倍数为100倍,50μg/L的Rh作为内标补偿基体效应。在此基础上建立生物样品中Hg的ICP-MS分析与干扰校正方法,检出限为1.2ng/g。采用该方法对9个标准物质中Hg含量进行测定,测定值与标准值(或参考值)一致,尤其是国家标准物质GBW10028(黄芪)、GBW10025(螺旋藻)、GBW10015a(菠菜)的准确度显著提高,相对标准偏差(n=10)为0.7%~7.0%。该方法操作简便,适用于W含量范围在0~1000ng/g,Hg含量范围在3.2~670ng/g的生物样品的测试。

关键词：生物样品汞电感耦合等离子体质谱法干扰校正

The significance and variation characteristics of interlay water in smectite of hydrocarbon source rocks

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Science China Earth Sciences 2012年第4期55卷 397-404页

作者： CAI JinGong LU LongFei BAO YuJin FAN Fu xu jinli The State Key Laboratory of Marine Geology Tongii UniversityShanghai 200092China Wuxi Institute of Petroleum Geology SINOPEC Exploration and ResearchWuxi 214151China Geological Scientific Research Institute Shengli Oilfield CompanySinopecDongying 257000China

To investigate variation characteristics of interlayer water bound up with organic matter in smectite, organo-clay complexes extracted from grinded source rock samples were determined using thermo-XRD, DTA and PY-GC. The dool diffraction peak of organo-clay complexes is postponed from 250 to 550℃ before reaching 1.00 nm and accompanied by exothermal peaks on DTA and organic matter with abundant C20-C30carbon detected by PY-GC, which is different from single smectite and indicates the existence of organic matter in the interlayer of smectite. Water desorption characteristics of organo-clay complexes are in consistent with smectite at 100 and 600℃, but different from smectite at 550℃ with an additional dehydration peak and a remaining d001 diffraction peak, suggesting the vcater removed at 550℃ is interlayer adsorption water rather than constituent water of clay minerals. Comparing the dehydration order and water loss, we conclude that part of interlayer water of smectite may act as the ＂bridge＂ that binds organic matter and smectite, which results in water-expelled lag beyond 250℃ and may provide a good medium for hydrocarbon migration and oil pool formation.

关键词： source rocks organo-clay complexes interlayer water organic matter

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A Study on the Integration of Traditional Chinese Culture into College English Education Under the Context of Course-Based Ideological and Political Education

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Journal of Contemporary Educational Research 2022年第4期6卷 39-44页

作者： jinli xu Yuewen Wang School of Foreign Languages(School of International Education) Qilu University of Technology(Shandong Academy of Science)Jinan 250353Shandong ProvinceChina

The construction of course-based ideological and political education is currently in its full *** both instrumentality and humanity,college English is the ideal carrier of ideological and political *** English education should keep pace with the era,integrate with ideological and political education based on traditional Chinese culture,and construct a teaching system with Chinese *** is necessary to strengthen ideological and political orientation,reasonably integrate the teaching content,comprehensively enhance the quality of teachers,and actively innovate the teaching method,so as to further improve the effect of course-based ideological and political practice as well as realize the fundamental task of cultivating students through moral cultivation in higher education.

关键词： Course-based ideological and political education Traditional Chinese culture College English teaching Integration routes

Numerical Simulation of the Churning Power Losses in the Automotive Hypoid Gear Reducer

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Journal of Applied Mathematics and Physics 2018年第9期6卷 1951-1956页

作者： Lin Zou Mingya Du Bing Jia jinli xu Liangshun Ren School of Mechanical and Electronic Engineering Wuhan University of Technology Wuhan China

Improving vehicle transmission efficiency and reducing vehicle fuel consumption is currently one of the main objectives in the automotive field. Reducing gear churning power losses has significant influence on the decreasing vehicle fuel consumption. Based on the two phase flow theory, a 2D two-phase model of the simplified hypoid gear is established to predict the churning losses in different conditions, the VOF method is introduced to track the volume fraction of the free surface, a standard k-ε model is also built to calculate complex turbulence. The oil distributions at the different rotational speed, the different immersion depth and the different viscosity as well as the churning losses of the hypoid gear are obtained and discussed in detail. In general, the churning power losses increase with the increase of the speed, the immersion depth and the viscosity, while the rotational speed shows the greatest influence on the churning losses. It is hoped that this investigation will be helpful in automotive industry applications.

关键词： Churning Power Loss Two Phases Flow VOF Method Hypoid Gear

基于HoloLens的有限元分析变形结果可视化研究

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系统仿真学报 2021年第1期33卷 109-117页

作者：徐劲力周铮武汉理工大学机电工程学院湖北武汉430070

使用Unity3D软件开发基于Microsoft HoloLens的UWP(Universal Windows Platform)有限元分析结果虚拟评审应用。利用Matlab进行编程完成三维实体静力有限元分析。为实现变形效果的可视化,提取有限元分析结果,生成VTK(Visualization Toolk... 详细信息

使用Unity3D软件开发基于Microsoft HoloLens的UWP(Universal Windows Platform)有限元分析结果虚拟评审应用。利用Matlab进行编程完成三维实体静力有限元分析。为实现变形效果的可视化,提取有限元分析结果,生成VTK(Visualization Toolkit)格式文件,利用自制的文件转换器转换成.dae文件。在Unity3D软件中编写顶点着色器脚本实现片面模型的颜色显示和变形效果的可视化,最终发布UWP应用。实验结果表明:Matlab和Ansys Workbench有限元分析结果相吻合,基于HoloLens的有限元分析变形结果虚拟评审应用沉浸感强,交互性高,并可以推广到其他有限元分析应用领域。

关键词： Unity3D Microsoft HoloLens 有限元虚拟评审 Matlab VTK(Visualization Toolkit)

鄂尔多斯盆地三叠纪疑源类及其与油源岩发育的关系

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石油学报 2007年第2期28卷 40-43,48页

作者：吉利明徐金鲤中国科学院地质地球物理研究所兰州油气资源研究中心中国石化胜利油田地质科学研究院山东东营257015

对鄂尔多斯盆地西南部陇东地区中上三叠统微体古生物进行了分析,在延长组长7段发现极其丰富的以光面球藻为主的疑源类组合。与古生代以前光面球藻来源于海生单细胞浮游藻类不同,延长组光面藻可能来源于湖相淡水宏观藻类,这些化石可能是... 详细信息

对鄂尔多斯盆地西南部陇东地区中上三叠统微体古生物进行了分析,在延长组长7段发现极其丰富的以光面球藻为主的疑源类组合。与古生代以前光面球藻来源于海生单细胞浮游藻类不同,延长组光面藻可能来源于湖相淡水宏观藻类,这些化石可能是大型红藻或绿藻类的孢子体。疑源类分布的高丰度层位长73—长72段恰好是本地区的主要油源岩层。疑源类不仅是源岩中藻类体和无定形体的主要组成部分,而且热解指数也显示出,随疑源类丰度的升高,源岩生烃能力逐渐增强。这些特征均表明疑源类是鄂尔多斯盆地三叠系延长组湖相优质烃源岩形成的重要母质。

关键词：鄂尔多斯盆地西峰油田三叠系延长组疑源类烃源岩