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Geochemical characteristics and diagenetic fluids of dolomite reservoirs in the Huanglong Formation, Eastern Sichuan Basin, China

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Petroleum Science 2014年第1期11卷 52-66页

作者： Wen Huaguo Wen Longbin chen haoru Zheng Rongcai Dang Lurui Li Yanan State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Institute of Sedimentary Geology Chengdu University of Technology Chongqing Gas District of Southwest Oil and Gas Company of CNPC

Based on a comprehensive study of texture,diagenetic behavior and evolution of dolomite in the Huanglong Formation,trace （e.g.,Fe,Mn and Sr） and rare earth element （REE） geochemistry,andisotopic characteristics （e.g.,C,O and Sr）,four types of diagenetic fluids are identified in the Huanglong Formation dolomite reservoirs of the Eastern Sichuan Basin,China：1）：marine-derived pore waters in the marine diagenetic environment,2） sabkha compaction brine conserved in the early shallowburied diagenetic environment,3） strongly-oxidizing low-temperature meteoric water in the seepagesubsurface flow diagenetic environment,and 4） strongly reducing deeply seated mixed hot brine in the middle and deep burial diagenetic environment.The fluids developed hereditarily from one environment to another,which resulted in its respective characteristics.Fluid characteristics play an important role in the development of dolomite reservoirs：1） dolomitization by marine-derived pore water in the quasisyngenetic stage did not form an effective reservoir; 2） early diagenetic burial dolomitization by the sabkha compaction brine formed the basis for reservoir development; 3） meteoric water karstification in the paleo-epidiagenetic stage expanded both the distribution and the size of the reservoirs,and improved the reservoir quality; 4） deep-burial dissolution and tectonic fracturing in the reburial diagenetic stage further improved reservoir porosity and permeability.

关键词： Dolomite reservoir geochemistry diagenetic fluids Huanglong Formation Carboniferous Sichuan Basin

The Origin of Paleokarst in the Huanglong Formation of the Eastern Sichuan Basin:Evidence from δ^(13)C, δ^(18)O and ^(87)Sr/^(86)Sr

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Acta Geologica Sinica(English Edition) 2014年第6期88卷 1852-1862页

作者： chen haoru ZHENG Rongcai WEN Huaguo LI Shilin LI Shuang ZHOU Gang WEN Longbin State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chongqing Gas District of Southwest Oil and Gas Company of CNPC Petroleum Exploration and Development Research Institute PetroC hina Southwest Oil and Gasfield Company

Karst rocks from the Huanglong Formation exposed at the margin of the Eastern Sichuan Basin can be divided into four types：slightly corroded, moderately corroded porous, intensely corroded brecciated and intensely corroded and replaced secondary calcic karstic rocks. The carbon, oxygen and strontium isotope compositions of the various karst rocks are analyzed systematically and compared to rocks without karst corrosion. The results indicate that（1） the Huanglong Formation in the eastern Sichuan Basin was a restricted bay supplied and controlled by freshwater in which mudmicrite and mud-dolomicrite exhibit low δ13C and δ18O values and high 87Sr/86 Sr ratios;（2） all types of karstic rocks in the paleokarst reservoirs of the Huanglong Formation in the research area are affected by atmospheric freshwater with the δ13C and δ18O values and 87Sr/86 Sr ratios in the original formation approaching those of atmospheric freshwater, which reflects ancient hydrological conditions, fluid properties, isotopic source and the fractionation effect;（3） the intensely corroded and replaced secondary limestone is affected by a variety of diagenetic fluids, often reflected by δ13C and δ18O values, while the 87Sr/86 Sr ratios exhibit the strong degree of the corrosion;（4） after comparing the 87Sr/86 Sr ratios of each type of karst rock, the diagenetic fluids are determined to be mainly atmospheric freshwater, and depending on the strength of corrosion, and the low 87Sr/86 Sr ratio fluids in the layer will participate in the karst process. The carbon, oxygen, and strontium isotopes of different karstic reservoirs can provide meaningful geochemical information for forecasting and evaluating the development and distribution rules of the Huanglong Formation at the margin of the eastern Sichuan Basin in time and space.

关键词： paleokarst reservoirs,carbon and oxygen isotope,strontium isotope,geochemistry,Huanglong Formation,eastern Sichuan area

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连锁超市零售商品销量的多步预测研究

商业观察 2024年第8期10卷 76-80页

作者：李浩茹陈晓阳山西工商学院山西太原030036 北京起重运输机械设计研究院北京100007

文章通过分析连锁超市部分商品的销售特征,采取传统时间序列法、神经网络模型(ANN)两类基础方法对较有代表性的销售数据序列进行预测。文章将对原有的直接多步(Direct Multi-Step Ahead,DMSA)预测思路进行改进,采用改进的直接多步预测... 详细信息

文章通过分析连锁超市部分商品的销售特征,采取传统时间序列法、神经网络模型(ANN)两类基础方法对较有代表性的销售数据序列进行预测。文章将对原有的直接多步(Direct Multi-Step Ahead,DMSA)预测思路进行改进,采用改进的直接多步预测法对销量进行三步超前预测和五步超前预测,并将结果与采用DMSA、间接多步预测(Recursive Multi-Step Ahead,RMSA)和可变时间尺度法(Variable Time Scale,VTS)的实验结果进行对比,发现改进的直接多步预测法的预测精度有了一定的提升。

关键词：零售直接多步预测神经网络时间序列

川东五百梯地区石炭系岩溶古地貌识别及储集意义

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岩性油气藏 2024年第4期36卷 109-121页

作者：王同川陈浩如温龙彬钱玉贵李玉琢文华国油气藏地质及开发工程全国重点实验室成都理工大学成都610059 成都理工大学沉积地质研究院成都610059 西华师范大学环境科学与工程学院四川南充637009 中石化西南油气分公司勘探开发研究院成都610041

综合利用钻井、测井、岩心及地震资料,通过建立地震正演模型模拟、RGB分频融合技术及波形分类分析等手段,对川东五百梯地区石炭系岩溶古地貌进行了识别与刻画。研究结果表明:(1)川东五百梯地区石炭系遭受的岩溶作用强度自西向东逐渐变小... 详细信息

综合利用钻井、测井、岩心及地震资料,通过建立地震正演模型模拟、RGB分频融合技术及波形分类分析等手段,对川东五百梯地区石炭系岩溶古地貌进行了识别与刻画。研究结果表明:(1)川东五百梯地区石炭系遭受的岩溶作用强度自西向东逐渐变小,东南部石炭系原始沉积厚度更大,但残余厚度分布不均匀,主要为10~30 m;西北部地层厚度较小,为0~15 m。(2)研究区石炭系自西向东可识别出岩溶高地和岩溶斜坡2个二级地貌单元,岩溶斜坡可划分为残丘和浅洼2个三级地貌单元,再依据其差异溶蚀特征,可进一步划分为陡斜坡浅洼和缓斜坡浅洼,浅洼内发育残丘、暗河及落水洞。反射同相轴的上提和下拉特征、岩溶角砾岩的发育、地震层拉平剖面、RGB分频融合及波形变化特征等均可识别出岩溶古地貌的发育。(3)研究区石炭系各地貌单元的分布受构造控制,浅洼和残丘多以椭圆状或不规则长条状呈北西—南东向展布,暗河的展布与浅洼长轴方向一致;岩溶古地貌控制着地层厚度以及溶蚀孔洞的发育,残丘残余厚度较大,岩溶作用强,充填作用较弱,溶蚀孔洞较发育,储层平均孔隙度为4.34%;缓斜坡浅洼残余厚度较小,充填作用较强,溶蚀孔洞不发育,储层平均孔隙度为2.68%,而陡斜坡浅洼虽然残余厚度小,但因潜水位低、泄水能力强,溶蚀作用强而充填作用弱,储集空间发育,储层平均孔隙度为5.05%;缓斜坡和陡斜坡储层平均孔隙度分别为3.67%和3.31%,岩溶高地孔隙度最小,平均为2.51%。

关键词：岩溶古地貌浅洼残丘岩溶斜坡带地震正演模拟 RGB分频融合岩溶角砾岩黄龙组石炭系川东五百梯地区

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燃煤电站掺烧污泥热力学与经济性分析

热力发电 2024年第4期53卷 73-83页

作者：刘铭宇陈志董张浩儒余建豪张国强张锴杨立军华北电力大学热电生产过程污染物监测与控制北京市重点实验室北京102206

我国污泥产量逐年增加,如何对其进行无害化、资源化处理成为亟待解决的问题,拟将燃煤电站与污泥干燥系统耦合,湿污泥干燥后进行掺烧。以某典型超临界660MW机组为研究对象,在THA工况下,通过对锅炉进行热力计算和对系统整体进行热力学分... 详细信息

我国污泥产量逐年增加,如何对其进行无害化、资源化处理成为亟待解决的问题,拟将燃煤电站与污泥干燥系统耦合,湿污泥干燥后进行掺烧。以某典型超临界660MW机组为研究对象,在THA工况下,通过对锅炉进行热力计算和对系统整体进行热力学分析及经济性分析,研究掺烧不同含水率(10%、20%、35%、50%、65%)不同掺烧量(2%、4%、6%、8%、10%)的干化污泥对排烟温度、锅炉效率、净发电效率、湿污泥发电折合净效率和干化污泥发电折合净效率等参数的影响。结果表明:当干化污泥含水率超过50%时会导致参数恶化且随掺烧量的增加变化趋势加剧;干化污泥的含水率应控制在50%及以下,若超过此值,掺烧量应小于4%;掺烧污泥导致系统的㶲效率降低,主要原因是锅炉和干燥设备的㶲损失增加;当掺烧含水率为20%,掺烧量为10%的干化污泥时,系统经济性最好,动态回收周期仅为4.02年。

关键词：污泥干燥含水率掺烧量燃煤电站热力学分析经济性分析

A mechanic insight into low-temperature catalytic combustion toward ethylene oxide over Pt-Ru/CuCeO_(x) bimetallic catalyst

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Journal of Rare Earths 2023年第6期41卷 881-888,I0003页

作者： Wenxi Zhou Kai chen Quanli Ke haoru Wang Xiao chen Yufeng Liu Guokai Cui Xiaole Weng Ying Zhou Hanfeng Lu Institute of Catalytic Reaction Engineering College of Chemical EngineeringZhejiang University of TechnologyHuzhou 313200China Department of Safety and Environmental Protection Pharmaceutical CollegeJinhua PolytechnicJinhua 321017China Key Laboratory of Environment Remediation and Ecological Health Ministry of EducationCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China

The catalytic oxidation performance toward ethylene oxide(EO)and the consequent mechanism were investigated on the Pt-Ru/CuCeO_(x)bimetallic catalyst,which was prepared by a distinct method combining stepwise adsorption and subsequent impregnation.The catalytic tests show that the introduction of Ru into the Pt catalyst,so as to form Pt-Ru bimetallic active sites,can greatly increase the oxidation activity of the catalyst,as evidenced by the extremely lower full oxidation temperature(120℃)when compared with that of the Pt/CeO_(2) catalyst(160℃).The XPS spectra show that the Ru species(mainly RuO_(x))have strong interaction with the CuCeO_(x) support,which can therefore affect the electron transfer between the Pt species and the support.As a result,the oxygen activation on Pt species is obviously facilitated and catalytic activity is enhanced.Finally,in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTs)was used to track the reaction mechanism.It is found that the catalytic oxidation process follows the MvK catalytic mechanism at low temperature and the L-H catalytic mechanism when the temperature moves to higher range.

关键词： Ethylene oxide Bimetallic catalyst Catalytic oxidation Degradation pathway Mechanism Rare earths

Comparative metabolomics provides novel insights into the basis of petiole color differences in celery(Apium graveolens L.)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2022年第4期23卷 300-314页

作者： Mengyao LI Jie LI Haohan TAN Ya LUO Yong ZHANG Qing chen Yan WANG Yuanxiu LIN Yunting ZHANG Xiaorong WANG haoru TANG College of Horticulture Sichuan Agricultural UniversityChengdu 611130China Institute of Pomology and Olericulture Sichuan Agricultural UniversityChengdu 611130China

Plant metabolites are important for plant development and human health.Plants of celery(Apium graveolens L.)with different-colored petioles have been formed in the course of long-term evolution.However,the composition,content distribution,and mechanisms of accumulation of metabolites in different-colored petioles remain elusive.Using ultra-high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS),1159 metabolites,including 100 lipids,72 organic acids and derivatives,83 phenylpropanoids and polyketides,and several alkaloids and terpenoids,were quantified in four celery cultivars,each with a different petiole color.There were significant differences in the types and contents of metabolites in celery with different-colored petioles,with the most striking difference between green celery and purple celery,followed by white celery and green celery.Annotated analysis of metabolic pathways showed that the metabolites of the different-colored petioles were significantly enriched in biosynthetic pathways such as anthocyanin,flavonoid,and chlorophyll pathways,suggesting that these metabolic pathways may play a key role in determining petiole color in celery.The content of chlorophyll in green celery was significantly higher than that in other celery cultivars,yellow celery was rich in carotenoids,and the content of anthocyanin in purple celery was significantly higher than that in the other celery cultivars.The color of the celery petioles was significantly correlated with the content of related metabolites.Among the four celery cultivars,the metabolites of the anthocyanin biosynthesis pathway were enriched in purple celery.The results of quantitative real-time polymerase chain reaction(q RT-PCR)suggested that the differential expression of the chalcone synthase(CHS)gene in the anthocyanin biosynthesis pathway might affect the biosynthesis of anthocyanin in celery.In addition,HPLC analysis revealed that cyanidin is the main pigment in purple celery.This study explored the differences in the types and cont

关键词： Celery Metabolite Anthocyanin Chlorophyll Petiole color

湾位双键官能化苝酰亚胺的合成及其溶液自组装行为研究

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合成技术及应用 2024年第2期39卷 33-40页

作者：赵浩儒鄂曾泽顾丹丹桑伟慧韩天娇廖作桂陈珈江晓泽孙宾东华大学材料科学与工程学院纤维材料改性国家重点实验室上海201620 广东壹诺科技股份有限公司广东云浮527100

通过对苝酰亚胺的改性,合成了湾位双键官能团化、侧链为燕尾链的苝酰亚胺衍生物1,7-vinyl-PDI-EH。通过控制变量、优化合成反应条件,以反应浓度3.5 mg/mL在色谱纯级别(HPLC)四氢呋喃中反应2 h时,目标产物产率最高。进一步采用紫外可见... 详细信息

通过对苝酰亚胺的改性,合成了湾位双键官能团化、侧链为燕尾链的苝酰亚胺衍生物1,7-vinyl-PDI-EH。通过控制变量、优化合成反应条件,以反应浓度3.5 mg/mL在色谱纯级别(HPLC)四氢呋喃中反应2 h时,目标产物产率最高。进一步采用紫外可见分光光谱、荧光光谱以及浓度依赖光谱对其光物理性能和自组装行为进行表征,结果表明1,7-vinyl-PDI-EH在氯仿溶液中浓度达到1.1×10^(-4 )mol/L后随着浓度增大荧光淬灭,7.0×10^(-4) mol/L时分子产生明显自组装。通过氯仿和甲醇体系的双扩散晶体培养,得到1,7-vinyl-PDI-EH晶体,其在结晶状态下仍有一定荧光性能。

关键词：苝酰亚胺湾位取代双键官能团化合成表征溶液自组装

Current Status of Human Papillomavirus-Related Head and Neck Cancer: From Viral Genome to Patient Care

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Virologica Sinica 2021年第6期36卷 1284-1302页

作者： haoru Dong Xinhua Shu Qiang Xu chen Zhu Andreas M.Kaufmann Zhi-Ming Zheng Andreas E.Albers Xu Qian Department of Clinical Laboratory Cancer Hospital of the University of Chinese Academy of Sciences(Zhejiang Cancer Hospital)Institute of Basic Medicine and Cancer(IBMC)Chinese Academy of SciencesHangzhou310022China Cancer Hospital of the University of Chinese Academy of Sciences(Zhejiang Cancer Hospital) Institute of Basic Medicine and Cancer(IBMC)Chinese Academy of SciencesHangzhou310022China Department of Cancer Prevention Cancer Hospital University of Chinese Academy of Sciences(Zhejiang Cancer Hospital)Institute of Basic Medicine and Cancer(IBMC)Chinese Academy of SciencesHangzhou310022China Clinic for Gynecology Berlin Institute of HealthCharité-Universitätsmedizin BerlinFreie Universität BerlinHumboldt-Universität Zu BerlinBerlin12203Germany Tumor Virus RNA Biology Section HIV Dynamics and Replication ProgramNational Cancer InstituteNational Institutes of HealthFrederickMD21702USA Department of Otolaryngology Head and Neck SurgeryBerlin Institute of HealthCharité-Universitätsmedizin BerlinFreie Universität BerlinHumboldt-Universität Zu BerlinBerlin13353Germany

Human papillomavirus(HPV)infection identified as a definitive human carcinogen is increasingly being recognized for its role in carcinogenesis of human cancers.Up to 38%–80%of head and neck squamous cell carcinoma(HNSCC)in oropharyngeal location(OPSCC)and nearly all cervical cancers contain the HPV genome which is implicated in causing cancer through its oncoproteins E6 and E7.Given by the biologically distinct HPV-related OPSCC and a more favorable prognosis compared to HPV-negative tumors,clinical trials on de-escalation treatment strategies for these patients have been studied.It is therefore raised the questions for the patient stratification if treatment de-escalation is feasible.Moreover,understanding the crosstalk of HPV-mediated malignancy and immunity with clinical insights from the proportional response rate to immune checkpoint blockade treatments in patients with HNSCC is of importance to substantially improve the treatment efficacy.This review discusses the biology of HPV-related HNSCC as well as successful clinically findings with promising candidates in the pipeline for future directions.With the advent of various sequencing technologies,further biomolecules associated with HPV-related HNSCC progression are currently being identified to be used as potential biomarkers or targets for clinical decisions throughout the continuum of cancer care.

关键词： Human papillomavirus(HPV)integration Molecular diagnostics Oropharyngeal cancer De-Escalation treatment Immunotherapy