检索结果-南通市图书馆

同方期刊数据库

鄂尔多斯盆地东部上石炭统铝土岩系储集层特征及形成模式

在线全文

学校读者我要写书评

暂无评论

石油勘探与开发 2024年第1期51卷 39-47页

作者：李勇王壮森邵龙义弓嘉勋吴鹏中国矿业大学(北京)地球科学与测绘工程学院北京100083 中联煤层气有限责任公司北京100011

基于岩心观察、岩石薄片、X射线衍射、扫描电镜、低温气体吸附和等温吸附等实验,分析鄂尔多斯盆地东部上石炭统铝土岩系岩性和孔隙特征,以揭示铝土岩系储集层形成演化过程。研究表明:(1)提出以铝的氢氧化物、铁矿物和黏土矿物三单元的... 详细信息

基于岩心观察、岩石薄片、X射线衍射、扫描电镜、低温气体吸附和等温吸附等实验,分析鄂尔多斯盆地东部上石炭统铝土岩系岩性和孔隙特征,以揭示铝土岩系储集层形成演化过程。研究表明:(1)提出以铝的氢氧化物、铁矿物和黏土矿物三单元的铝土岩系岩石学命名分类方案;(2)铝质泥岩产状主要为致密块状和碎屑状,(泥质)铝土岩多呈致密块状、豆状、鲕状、多孔土状和碎屑状,溶蚀孔、晶间孔和微裂缝是主要储气空间,孔隙度一般小于10%,以介孔为主;(3)华北地区铝土岩系纵向上总体上可分为5段,即铁岩(山西式铁矿,A段)、铝质泥岩(B段)、铝土岩(C段)、铝质泥岩(含碎屑)(D段)和暗色泥岩-煤岩段(E段);(4)在岩溶平台、缓坡和洼地分别发育潜穴/漏斗状、透镜状、层状/块状铝土岩沉积,岩溶平台及缓坡处有利于地表水淋滤,岩溶改造作用强,孔隙发育,储集层厚度大且物性好,但连贯性差,低洼处物性较差但储集层相对连续稳定。铝土岩天然气富集受源岩-储集层-裂缝综合控制,相关认识可为该层段和类似铝土岩系天然气勘探开发提供地质依据。

关键词：华北克拉通鄂尔多斯盆地东部上石炭统铝土岩系储集层特征形成模式天然气成藏

同方期刊数据库

渤海湾盆地沙南凹陷古近系中深层砂岩储层特征与岩性油气藏勘探

在线全文

学校读者我要写书评

暂无评论

地质论评 2024年第3期70卷 1145-1158页

作者：胡贺伟许鹏于海波连豪杰姬新元丁熠然邵龙义中海石油(中国)有限公司天津分公司渤海石油研究院天津300452 中国矿业大学(北京)地球科学与测绘工程学院北京100083

渤海湾盆地沙南凹陷陡坡带古近系沙河街组二段发育辫状河三角洲相砂岩储集层,该储层受构造位置、埋藏速率、古地温变化、断裂作用的影响,在不同构造区特别是中深层,其物性具有明显的差异性。笔者等利用钻井、测井、地震及分析化验等资料... 详细信息

渤海湾盆地沙南凹陷陡坡带古近系沙河街组二段发育辫状河三角洲相砂岩储集层,该储层受构造位置、埋藏速率、古地温变化、断裂作用的影响,在不同构造区特别是中深层,其物性具有明显的差异性。笔者等利用钻井、测井、地震及分析化验等资料,对中深层砂岩储层沉积相、成岩作用及孔隙演化特征进行研究,提出优质储层的主控因素及演化规律。结果表明,研究区中深层砂岩以岩屑长石砂岩为主,孔隙以粒间溶孔、粒内溶孔为主,储层存在中孔中渗型、中孔低渗型、低孔低渗型和低孔特低渗型4类,且以中孔低渗型为主。储层孔隙总体比较发育,储层整体表现为中等孔隙度、中等渗透率,储层物性较好。对区内优质储层发育的控制因素进行研究表明,富含石英、长石的物源区母岩是区内优质储层发育的物质基础,三角洲分流河道沉积相是优质储层发育的主要沉积相类型,成岩晚期方解石胶结物经过强溶蚀作用是优质储层发育的关键因素。对中深层优质储层时空演化规律分析表明,沙南凹陷南次洼曹妃甸14-e构造区发育辫状河三角洲相砂体,且这些砂体都位于有效烃源岩内,油气运聚条件优越,所以岩性油气藏勘潜力较大。已钻井也证明了区内厚油层的存在,说明该区是沙南凹陷岩性油气藏勘探最有利场所。

关键词：储层特征影响因素岩性油气藏中深层勘探古近系沙南凹陷渤海湾盆地

Hemolysis of PM10 on RBCs in vitro: An indoor air study in a coal-burning lung cancer epidemic area

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2022年第1期13卷 512-517页

作者： Mengyuan Zhang longyi shao Tim Jones Ying Hu Rachel Adams Kelly Béru Bé State Key Laboratory of Coal Resources and Safe Mining and College of Geoscience and Surveying EngineeringChinaUniversity of Mining &Technology School of Earth and Environmental Sciences Cardiff University Guangdong Province Nuclear Industry Geological Bureau School of Health Sciences Cardiff Metropolitan UniversityLlandaff Campus School of Biosciences Cardiff University

Epidemiological studies have suggested that inhalation exposure to indoor ambient air from coal-burning environments is causally associated with respiratory health risks. In order to explore the toxicological mechanisms behind the adverse health effects, the hemolytic activity of PM10(particulate matter with an aerodynamic diameter of 10 um or less) samples collected from homes burning coal in the recognized China "cancer village"Xuanwei were evaluated and matched against their trace elemental contents. The results demonstrated that the hemolytic activity of indoor PM10 in coal-burning environments ranged from 4.28% to 5.24%, with a clear positive dose-response relationship. Although low dose samples exhibited a reduced hemolytic activity, PM10 could have a toxic effect upon people in a coal-burning indoor environment for extended time periods. The concentrations of analyzed trace elements in PM10 samples ranged from 6966 to 12,958 ppm. Among the analyzed elements, Zn, Ti, Ni, Cu, Pb, Ba, Mn, Cr and V were found at higher concentrations and accounted for over 95% of the total elements. The concentrations of total analyzed elements in the PM10 samples revealed a significant positive correlation with PM10 hemolytic activity. Of the analyzed elements, Zn, Pb and Cs positively correlated with hemolysis, while Li, U and V negatively correlated with the hemolysis of human red blood cells(RBCs). Therefore,the heavy metal elements could be one of the main factors responsible for the hemolytic capacity of indoor PM10 in coal-burning environments.

关键词： Air pollution PM10 Coal Hemolysis Xuanwei County RED-BLOOD-CELLS AIRBORNE PARTICULATE MATTER INDUCED OXIDATIVE DAMAGE XUAN-WEI PARTICLE-SIZE POLLUTION MORTALITY CHINA COMBUSTION EMISSIONS

沁水盆地左权地区山西组米氏旋回识别及其天文年代标尺

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国煤炭地质 2024年第4期36卷 1-7,12页

作者：苟苏恒吕佳阳李柯良刘亮亮邵龙义中国矿业大学(北京)煤炭资源与安全开采国家重点实验室北京100083 中国矿业大学(北京)地球科学与测绘工程学院北京100083 煤与煤层气共采国家重点实验室山西晋城048012 易安蓝焰煤与煤层气共采技术有限责任公司山西晋城048012

依据地层序列的旋回信号进行地球轨道参数周期的识别,是确定深时时间尺度的有效方法之一。以沁水盆地左权地区山西组为例,使用时间序列分析法与相关系数法对钻孔剖面自然伽马测井曲线进行旋回性分析,并据此建立山西组年代地层标尺。使... 详细信息

依据地层序列的旋回信号进行地球轨道参数周期的识别,是确定深时时间尺度的有效方法之一。以沁水盆地左权地区山西组为例,使用时间序列分析法与相关系数法对钻孔剖面自然伽马测井曲线进行旋回性分析,并据此建立山西组年代地层标尺。使用频谱分析,在区内山西组识别出7.13 m、1.62~2.23 m的优势沉积旋回,分别对应405 kyr的长偏心率周期和91.9~126.4 kyr的短偏心率周期,经过天文检验,证实沁水盆地山西组受到天文周期驱动。通过高斯带通滤波,建立沁水盆地山西组“浮动”天文年代标尺,确定出9个405 kyr长偏心率旋回,据此获得山西组沉积时限为3.82 Myr。建立的天文年代标尺可为沁水盆地山西组古环境、古气候和各种地质事件的演化提供年代学依据。

关键词：山西组旋回地层学天文年代标尺轨道参数周期沁水盆地

基于自然伽马测井的煤系关键金属精细勘探技术

在线全文

学校读者我要写书评

暂无评论

地质学报 2024年第8期98卷 2531-2540页

作者：边晓王雷王喜军杨敏芳叶攀祖淯文索金玲邵龙义鲁静中国矿业大学(北京)煤炭精细勘探与智能开发全国重点实验室中国矿业大学(北京)地球科学与测绘工程学院北京100083 中石油煤层气有限责任公司北京100028 河北柳江盆地地质遗迹国家级自然保护区管理中心河北秦皇岛066000 中国石油勘探开发研究院北京100083

滇东—黔西上二叠统煤系底部赋存着累积厚度达数米、以自然伽马测井正异常为特征的Nb-Zr-REY-Ga型关键金属矿层,是我国最有开发潜力的煤系关键金属资源之一。当前对该矿层的研究主要聚焦于关键金属物质来源、赋存状态和成矿模式等方面,... 详细信息

滇东—黔西上二叠统煤系底部赋存着累积厚度达数米、以自然伽马测井正异常为特征的Nb-Zr-REY-Ga型关键金属矿层,是我国最有开发潜力的煤系关键金属资源之一。当前对该矿层的研究主要聚焦于关键金属物质来源、赋存状态和成矿模式等方面,而利用自然伽马测井数据对该矿层进行定量识别和浓度计算等工作还未开展过,尽管这项工作对将来这些矿层关键金属的勘探和开发具有重要意义。论文以Zr和Ga两种元素为例,利用收集和实测的关键金属浓度及其对应的自然伽马值等数据,进行了基于自然伽马测井的关键金属矿层精细勘探技术研究。结果表明:研究区Zr和Ga元素浓度的预测模型分别为y=133.42x^(2)+262.23x+224.43和y=31.587e^(0.2273x),指示两者最低开发利用浓度(2000μg/g和50μg/g)对应的自然伽马值分别为2.8 pA/kg和2.0 pA/kg。发现Haar小波3层分解获得的预测矿层位置与地球化学实测的矿层位置吻合度最高。预测模型验证结果表明,Zr和Ga元素浓度预测平均相对误差分别为14.21%和10.97%,矿层厚度预测平均相对误差分别为4.16%和4.82%,说明论文建立的关键金属精细勘探技术可以精确识别研究区关键金属矿层浓度和厚度,对滇东—黔西地区Nb-Zr-REY-Ga型关键金属矿层的精细勘探具有较好的应用价值。

关键词：滇东—黔西地区煤系关键金属上二叠统煤系自然伽马测井小波变换

同方期刊数据库

Fractal characterization of pore structure and its influence on CH_(4) adsorption and seepage capacity of low-rank coals

在线全文

学校读者我要写书评

暂无评论

Frontiers of Earth Science 2022年第4期16卷 916-933页

作者： Guangyuan MU Haihai HOU Jiaqiang ZHANG Yue TANG Ya-nan LI Bin SUN Yong LI Tim JONES Yuan YUAN longyi shao State Key Laboratory of Coal Resources and Safe Mining and College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijing 100083China College of Mining Liaoning Technical UniversityFuxin 123000China Oil&Gas Resource Survey Center China Geological SurveyMinistry of Land and ResourceBeijing 100029China Department of Coalbed Methane Research Institute of Petroleum Exploration and DevelopmentPetroChinaBeijing 100083China School of Earth and Environmental Sciences Cardiff UniversityCardiff CF103YEUK

The pore structures of coal can directly affect the adsorption and seepage capacity of coalbed methane(CBM),which therefore is an important influence on CBM exploration and *** this study,the pore structures of low-rank coals from the Middle Jurassic Xishanyao Formation in the southern Junggar Basin were analyzed,and the fractal dimensions(D1,D2,D3 and D4 corresponding to pore sizes of 0-5 nm,5-100 nm,100-1000 nm and 1000-20000 nm,respectively)were calculated to quantitatively describe these coal pore *** results show that Xishanyao coal is characterized by open pore morphology,good pore connectivity and well-developed seepage pores and microfractures,which is beneficial to CBM *** D1 and D2 can be used to characterize the pore surface and structure of adsorption pores *** D3 and D4 can be used to represent the pore structure of seepage *** with adsorption pores,the structure of seepage pores is more affected by the change of coal *** D1 is better than D2 in characterizing the methane adsorption *** D1>2.2,D1 is positively correlated with Langmuir volume(VL)and negatively correlated with Langmuir pressure(PL),while D2 shows a weak opposite *** coals with the higher D1 and lower D2 are associated with a higher VL,indicating the coal reservoir with more complex pore surfaces and simpler pore structures has stronger methane adsorption capacity.D4 is better than D3 in characterizing the methane seepage *** porosity and permeability of coal reservoirs increase with the increase of D4,while D3 displays an opposite trend,which is mainly related to the well-developed *** well-developed fracture system enhances the seepage capacity of the Xishanyao coal *** study reveals the fractal characteristics of pore structure and its significant influence on adsorption and seepage capacity of low-rank coal.

关键词： southern Junggar Basin Middle Jurassic low-rank coal coalbed methane pore structure fractal dimensions

Oxidative capacities of size-segregated haze particles in a residential area of Beijing

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2014年第1期26卷 167-174页

作者： Zhenquan Sun longyi shao Yujing Mu Ying Hu Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing Centre for Physical and Chemical Analysis State Key Laboratory of Coal Resources and Safe Mining & College of Geoscience and Surveying Engineering China University of Mining and Technology

The frequent haze days around the Chinese capital of Beijing in recent years have aroused great attention owing to the detrimental effects on visibility and public health. To discover the potential health effects of the haze, oxidative capacities of airborne particles collected in Beijing during haze and clear days were comparably assessed by a plasmid scission assay. Eleven water-soluble trace elements （As, Cd, Cr, Cu, Mn, Ni, Pb, V, Se, T1, and Zn） in the size-segregated airborne particles were quantitatively analyzed by inductively coupled plasma mass spectrometry, and most of the water- soluble trace elements were found to mainly concentrate in the fine particle size of 0.56-1.0 μm. In comparison with clear days, the mass concentrations of 11 analyzed water-soluble trace elements remarkably increased during haze days, and the oxidative capacities determined by the plasmid scission assay were markedly elevated accordingly during the haze days under the same dosage of particles as for those during clear days. Water-soluble trace elements in airborne particles, such as Cu, V, and particularly Zn, were found to have significantly positive correlations with the plasmid DNA damage rates. Because Cu, V, and Zn have been considered as bioavailable elements, the evident increase of these elements during haze days may be greatly harmful to human health.

关键词： haze water soluble trace elements plasmid scission damage size distribution

Synthesis of Mullite from High-alumina Fly Ash:a Case from the Jungar Power Plant in Inner Mongolia, Northern China

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2008年第1期82卷 99-104页

作者： CHEN Jiangfeng shao longyi LU Jing Department of Resources and Environmental Engineering Henan Polytechnic University Jiaozuo Henan 454100 The State Key Laboratory of Coal Resources and Safe Mining the Department of Resources and Earth Sciences China University of Mining and Technology （Beijing） Beijing 100083

In this paper, an experimental study was conducted in order to test the feasibility of sintering mullite directly from the high-alumina fly ash, without adding any extra material. The results show that the mullite contents in most sintered samples are over 70%. The samples sintered from the beneficiated fly ash have a higher content of mullite than those from the as-received fly ash under the same synthetic conditions. To obtain an equal amount of mullite, a higher sintering temperature is needed for the beneficiated fly ash than for the as-received fly ash. Considering the physical properties of sintered mullite, the favorable sintering temperature is 1400℃ for the as-received fly ash and 1500℃ for the beneficiated fly ash. A higher sintering temperature and a shorter holding time are profitable to sintering mullite. The orthogonal test confirmed that the dominant factor affecting mullite synthesis is sintering temperature, and that the most profitable matching conditions are 200 MPa-1500℃-3 h for the as-received fly ash and 200 MPa-1500 ℃-4 h for the beneficiated fly ash.

关键词： high-alumina fly ash sintering temperature mullite orthogonal test

Coalbed methane enrichment model of low-rank coals in multi-coals superimposed regions: a case study in the middle section of southern Junggar Basin

在线全文

学校读者我要写书评

暂无评论

Frontiers of Earth Science 2021年第2期15卷 256-271页

作者： Haihai HOU Guodong LIANG longyi shao Yue TANG Guangyuan MU College of Mining Liaoning Technical UniversityFuxin 123000China College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijing 100083China Oil&Gas Resource Survey Center China Geological SurveyMinistry of Land and ResourceBeijing 100029China

The Middle Jurassic Xishanyao Formation in the central section of the southern Junggar Basin has substantial amounts of low-ranked coalbed methane(CBM)recourses and is typically characterized by multi superimposed coal *** establish the CBM enrichment model,a series of experimental and testing methods were adopted,including coal maceral observation,proximate analysis,low temperature nitrogen adsorption(LTNA),methane carbon isotope determination,porosity/permeability simulation caused by overburden,and gas content *** controlling effect of sedimentary environment,geological tectonic,and hydrogeological condition on gas content was analyzed in *** results demonstrate that the areas with higher gas content(an average of 8.57 m3/t)are mainly located in the Urumqi River-Santun River(eastern study area),whereas gas content(an average of 3.92 m3/t)in the Manasi River-Taxi River(western study area)is relatively *** of the combined effects of strata temperature and pressure,the gas content in coal seam first increases and then decreases with increasing buried depth,and the critical depth of the inflection point ranges from 600 m to 850 *** by the changes in topography and water head height,the direction of groundwater migration is predicted from south to north and from west to *** on the gas content variation,the lower and middle parts of the Xishanyao Formation can be divided into three independent coalbearing gas *** a single gas-bearing system,there is a positive correlation between gas content and strata pressure,and the key mudstone layers separating each gas-bearing system are usually developed at the end of each highstand system *** new CBM accumulation model of the multi-coals mixed genetic gas shows that both biological and thermal origins are found in a buried depth interval between 600 m and 850 m,suggesting that the coals with those depths are the CBM enrichment horizons and favorable exploration regions

关键词： Xishanyao Formation multi-coal seams superimposed region low rank coal main controlling factors enrichment model