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Geological controls of shale gas accumulation and enrichment mechanism in Lower Cambrian Niutitang Formation of western Hubei, Middle Yangtze, China

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Frontiers of Earth Science 2021年第2期15卷 310-331页

作者： Lulu XU Saipeng HUANG Zaoxue LIU Yaru WEN Xianghui ZHOU yanlin zhang Xiongwei LI Deng WANG Fan LUO Cheng CHEN Hubei Geological Survey WuhanHubei 430034China Key Laboratory of Continental shale Accumulation and Development of Ministry of Education Northeast Petroleum UniversityDaqing 163318China Coal Reservoir Laboratory of National Engineering Research Center of CBM Development&Utilization School of Energy ResourcesChina University of GeosciencesBeijing 100083China The Seventh Geological Brigade of Hubei Geological Bureau Yichang 443000China

The lower Cambrian Niutitang Formation is of crucial importance for shale gas target reservoirs in western Hubei,China;however,little work has been done in this field,and its shale gas accumulation and enrichment mechanism are still *** on survey wells,outcrop data,and large numbers of tests,the geological conditions of shale gas accumulation were studied;moreover,the factors that influence the gas content were thoroughly *** results show that the Niutitang Formation(Є1n)can be divided into three sections:the first section(Є_(1)n^(1)),the second section(Є_(1)n^(2)),and the third section(Є1n3).TheЄ_(1)n^(2) is the main shale gas *** deep shelf facies is the main sedimentary facies and can be divided into three main lithofacies:argillaceous siltstone,carbonaceous shale and carbonaceous siliceous *** total organic carbon(TOC)content shows gentle growth trends until bottom of theЄ_(1)n^(2) and then decreases rapidly within theЄ_(1)n^(1),and the TOC content mainly ranges from 2%to 4%*** calcite and dolomite dissolution pores,clay intergranular pores and organic pores are the main pore types and the micropore types are clearly related to the mineral compositions and the TOC ***,the gas content is mainly affected by the TOC ***,wells with high gas contents are distributed only southeast of the Huangling anticline,and the combination of structural styles,fault and fracture development,and the distribution of the regional unconformity boundary between the upper Sinian Dengying Formation(Z2d)and theЄ_(1)n^(2) are the three most important factors affecting the gas *** favorable areas must meet the following conditions:a deep shelf environment,the presence of theЄ_(1)n^(1),wide and gentle folds,far from large normal faults that are more than 5 km,moderate thermal evolution,and greater than 500 m burial depth;this includes the block with the YD2–ZD2 wells,and the block with the Y1 and YD4 wel

关键词： shale gas Niutitang Formation accumulation conditions factors influencing the gas content sedimentary facies

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酸性矿山废水中多种有价金属的高效分离

环境保护科学 2024年第3期50卷 119-127页

作者：许昊洋宁寻安陈涛廖正家张艳林庄小薇张灌源广东工业大学环境科学与工程学院广州510006 广东省环境催化与健康风险控制重点实验室环境健康与污染控制研究院广州510006 广东省大宝山矿业有限公司韶关512100

酸性矿山废水(AMD)中多种有价金属的高效分离回收,是重金属减排和资源化利用的关键。文章通过中和沉淀实验和静态吸附实验探究回收有价金属的最佳沉淀和吸附pH,成功开发了中和沉淀—离子交换—中和沉淀组合工艺,并应用于大宝山AMD的处... 详细信息

酸性矿山废水(AMD)中多种有价金属的高效分离回收,是重金属减排和资源化利用的关键。文章通过中和沉淀实验和静态吸附实验探究回收有价金属的最佳沉淀和吸附pH,成功开发了中和沉淀—离子交换—中和沉淀组合工艺,并应用于大宝山AMD的处理。结果表明,AMD在pH为3.00和9.80中和沉淀时,分别沉获64%的Fe_(2)O_(3)富铁渣和51%的Mn O富锰渣。采用离子交换树脂分别在pH 3.95和6.10条件下对AMD中的Cu和Zn进行吸附,得到质量浓度为Cu^(2+)11~26 g/L,Zn^(2+)10~20 g/L的两种解吸液。通过该组合工艺,AMD中的各金属Fe、Cu、Zn和Mn的回收率分别为:96%、81%、70%和60%,实现了有价金属的高效分离回收。若采用此工艺回收大宝山2000 m^(3)/d的AMD中的铜、锌、锰硫酸盐,每年的利润为119万元,经济效益非常显著。此处理工艺为酸性矿山废水的高效资源化利用提供了新路径。

关键词：酸性矿山废水 Cu Zn 金属回收离子交换树脂废水处理

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The efficacy of Kriging spatial interpolation for filling temporal gaps in daily air temperature data: A case study in northeast China

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Research in Cold and Arid Regions 2016年第5期8卷 441-449页

作者： yanlin zhang XiaoLi Chang Ji Liang DongLiang Luo RuiXia He National-Local Joint Engineering Laboratory of Geo-Spatial Information Technology Hunan University of Science and Technology State Key Laboratory of Frozen Soils Engineering Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences

Quality-controlled and serially complete daily air temperature data are essential to evaluating and modelling the influences of climate change on the permafrost in cold regions. Due to malfunctions and location changes of observing stations, temporal gaps （i.e., missing data） are common in collected datasets. The objective of this study was to assess the efficacy of Kriging spatial interpolation for estimating missing data to fill the temporal gaps in daily air temperature data in northeast China. A cross-validation experiment was conducted. Daily air temperature series from 1960 to 2012 at each station were estimated by using the universal Kriging （UK） and Kriging with an external drift （KED）, as appropriate, as if all the ob-servations at a given station were completely missing. The temporal and spatial variation patterns of estimation uncertainties were also checked. Results showed that Kriging spatial interpolation was generally desirable for estimating missing data in daily air temperature, and in this study KED performed slightly better than UK. At most stations the correlation coefficients （R2） between the observed and estimated daily series were 〉0.98, and root mean square errors （RMSEs） of the estimated daily mean （Tmean）, maximum （Tmax）, and minimum （Tmin） of air temperature were 〈3 ℃. However, the estimation quality was strongly affected by seasonality and had spatial variation. In general, estimation uncertainties were small in summer and large in winter. On average, the RMSE in winter was approximately 1 ℃ higher than that in summer. In addition, estimation uncertainties in mountainous areas with complex terrain were significantly larger than those in plain areas.

关键词： daily air temperature gap filling Kriging spatial interpolation northeast China

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“秩边透水道”针法源流探析及优势病谱

中国针灸 2024年第2期44卷 200-203页

作者：张艳林王海军曹玉霞任帅娣段林余郝健亨闫敏金晓飞冀来喜天津中医药大学针灸推拿学院天津301617 山西中医药大学第二临床学院晋中030619 山西省针灸医院针灸三科成都中医药大学针灸推拿学院

从芒针的历史沿革、秩边穴的争议和定位、操作方法的形成及要领3个方面对“秩边透水道”针法的源流进行梳理,对该针法现有的优势病谱归类,并从得气和起效的神经机制入手推测该针法潜在的优势病谱,阐述“秩边透水道”针法研究的不足,以... 详细信息

从芒针的历史沿革、秩边穴的争议和定位、操作方法的形成及要领3个方面对“秩边透水道”针法的源流进行梳理,对该针法现有的优势病谱归类,并从得气和起效的神经机制入手推测该针法潜在的优势病谱,阐述“秩边透水道”针法研究的不足,以期为该针法的全方位认识及进一步研究提供参考。

关键词： “秩边透水道”针法源流优势病谱

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大气硝酸盐中氧同位素异常研究进展

科学通报 2019年第7期64卷 649-662页

作者：张雯淇章炎麟南京信息工程大学气候与环境变化国际联合实验室耶鲁-南京信息工程大学大气环境中心南京210044 南京信息工程大学应用气象学院江苏省农业气象重点实验室南京210044

硝酸盐是大气中的主要污染物,其前体物NO_x(NO+NO_2)参与大气中多种光化学反应,可以改变大气氧化特性,有利于细颗粒物的形成,影响气候系统与人类健康.硝酸盐氧同位素异常(Δ^(17)NO_3^-)是解析大气硝酸盐生成途径的有力手段.本文对大气... 详细信息

硝酸盐是大气中的主要污染物,其前体物NO_x(NO+NO_2)参与大气中多种光化学反应,可以改变大气氧化特性,有利于细颗粒物的形成,影响气候系统与人类健康.硝酸盐氧同位素异常(Δ^(17)NO_3^-)是解析大气硝酸盐生成途径的有力手段.本文对大气硝酸盐氧同位素异常的研究进展进行了综述.首先列举了测试大气硝酸盐三氧同位素(^(16)O, ^(17)O和^(18)O)的前处理方法(热解法、细菌法和化学法),并对比了全球范围内大气硝酸盐氧同位素异常的时空分布特征.其次总结了大气中硝酸盐生成的主要途径及其氧同位素质量守恒,讨论了大气硝酸盐中氧原子的可能来源及其氧同位素异常值,评估了全球及典型区域尺度上氧同位素异常的模型.最后对大气硝酸盐氧同位素异常的未来研究方向进行了展望.

关键词：大气硝酸盐氧同位素异常(Δ17O) 硝酸盐生成途径非质量同位素分馏大气化学模型

New insights into the sources and formation of carbonaceous aerosols in China:potential applications of dual-carbon isotopes

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National Science Review 2017年第6期4卷 804-806页

作者： Fang Cao yanlin zhang Lujie Ren Junwen Liu Jun Li Gan zhang Di Liu Yele Sun Zifa Wang Zongbo Shi Pingqing Fu Yale-NUIST Center on Atmospheric Environment Nanjing University of Information Science and Technology LAPC Institute of Atmospheric Physics Chinese Academy of Sciences Institute of Surface-Earth System Science Tianjin University SKLOG Guangzhou Institute of GeochemistryChinese Academy of Sciences School of Geography Earth and Environmental Sciences University of Birmingham

Carbonaceous aerosols account for20-50%of total fine particulate matter(PM;,particles with a diameter of2.5μm or less)mass concentration in polluted urban atmospheres and can affect atmospheric chemistry,air quality,... 详细信息

关键词： SOA PM New insights into the sources and formation of carbonaceous aerosols in China:potential applications of dual-carbon isotopes

基于模糊C均值聚类的高铁动车组电缆终端局部放电识别

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机车电传动 2024年第3期 156-163页

作者：杨燕花陈珍宝曹晗张彦林刘凯陈奎高国强中车株洲电力机车有限公司湖南株洲412001 西南交通大学电气工程学院四川成都611756

局部放电检测作为一种诊断车载电缆终端绝缘状态的有效手段,在列车实际运行环境中面临强干扰问题,为此文章提出了一种基于波形参数分析和模糊C均值聚类的车载电缆终端局放脉冲干扰分离策略。在实验室搭建了局部放电测试平台并采用高频... 详细信息

局部放电检测作为一种诊断车载电缆终端绝缘状态的有效手段,在列车实际运行环境中面临强干扰问题,为此文章提出了一种基于波形参数分析和模糊C均值聚类的车载电缆终端局放脉冲干扰分离策略。在实验室搭建了局部放电测试平台并采用高频电流法(HFCT)获取了电缆终端的局放信号和典型脉冲干扰信号,通过对脉冲单波进行包络处理,提取脉冲的3个参数作为特征向量,然后采用模糊C均值聚类方法对局放信号与脉冲干扰信号进行分离。试验结果表明,该方法能够有效地将局放信号与脉冲干扰信号分离,减小脉冲干扰信号对局部放电检测的影响,对提高局放手段评估车载电缆终端绝缘状态的准确性具有一定意义。

关键词：动车组电缆终端局部放电脉冲干扰模糊C均值聚类

Detection of a mud volcano in the Weitan Banks area of the northern South China Sea

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Journal of Oceanology and Limnology 2024年第5期42卷 1450-1469页

作者： Wei LUO Pin YAN yanlin WANG Junhui YU Qionghua WAN Zhenbo zhang Tao XUE Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China CNOOC International Energy Services(Beijing)Co. Ltd.Beijing 100028China University of Chinese Academy of Sciences Beijing 100049China Oilfield Engineering Research Institute of Geophysics CNOOC Energy Technology and ServicesZhanjiang 524057China

Situated between the petroliferous Cenozoic Zhujiang(Pearl)River Mouth Basin and the mud volcano-rich Mesozoic Dongsha Basin in the middle sector of the northern South China Sea,the Weitan Banks area has been previously mapped as a basement high that is composed of Mesozoic magmatic *** this study,we present several favorable indicators for petroleum geology that were detected from geophysical profiling and benthic sampling in the area.A conspicuous hill was discovered,named“Zhongwei Hill”,~80 m high above the~340 m deep seafloor and~1 km broad,in a depression with more than 7 km thick sedimentary *** Zhongwei Hill was seismically imaged with a mushroom-shaped structure and containing a cake-like crown,fluid flow pipes,and an~10 km broad anticline at ***,the hill represents a source-plumbing-eruption *** gas zones linked to deep fracture were found at or near the *** correlation indicates that the deep strata comprise the Jurassic and Paleogene strata,the major hosts of hydrocarbon source *** addition to the hill,there are number of mounds from which three bottom water samples were collected and the samples are rich in dissolved methane with concentrations high up to~900 nmol/L,much higher than the background level(0.5–2 nmol/L).The benthic samples are rich in coarse sediment clastics,authigenic carbonate nodules,and deep-water habitats likely feeding on methanotrophic *** these observations and the context,we propose that the Zhongwei Hill represents a mud volcano,likely thermally driven,that seeps methane from Jurassic and Paleogene source layers,thus poses a favorable clue for significant hydrocarbon generation capacity in transitional zone of the Zhujiang River Mouth Basin and the Dongsha Basin.

关键词： South China Sea Zhongwei Hill deep-level anticline mud volcano Mesozoic source layer hydrocarbon generation

脂多糖所致小鼠急性肺损伤中乙酰肝素酶的变化及其对肺泡巨噬细胞极化的影响

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中国工业医学杂志 2024年第4期37卷 346-349,375页

作者：张雁林赵怡然陈明李晓郑亦沐关里李树强北京大学第三医院职业医学研究中心北京100191

目的研究脂多糖(LPS)所致急性呼吸窘迫综合征(ARDS)发病中肺泡巨噬细胞(AM)乙酰肝素酶(HPSE)的变化及其对AM功能的调节作用。方法通过气管滴注LPS复制小鼠ARDS模型,检测小鼠肺支气管肺泡灌洗液(BALF)中巨噬细胞HPSE转录和酶活性以及促... 详细信息

目的研究脂多糖(LPS)所致急性呼吸窘迫综合征(ARDS)发病中肺泡巨噬细胞(AM)乙酰肝素酶(HPSE)的变化及其对AM功能的调节作用。方法通过气管滴注LPS复制小鼠ARDS模型,检测小鼠肺支气管肺泡灌洗液(BALF)中巨噬细胞HPSE转录和酶活性以及促炎因子肿瘤坏死因子-α(TNF-α)和白细胞介素-1β(IL-1β)的表达,通过给予HPSE抑制剂OGT2115(15 mg/kg)研究HPSE对肺泡巨噬细胞促炎因子表达的影响。结果小鼠经LPS染毒后,BALF中巨噬细胞HPSE转录表达和酶活性明显增加,与LPS剂量显著相关。巨噬细胞TNF-α和IL-1β表达水平明显增加,表明巨噬细胞发生M1型促炎极化。HPSE抑制剂OGT2115可抑制巨噬细胞促炎因子表达,提示HPSE可调节巨噬细胞的M1型转化。结论LPS染毒所致小鼠急性肺损伤发病中,巨噬细胞HPSE表达增加,并进一步调控AM向M1型极化,促进ARDS发生发展。

关键词：急性呼吸窘迫综合征(ARDS) 脂多糖(LPS) 肺泡巨噬细胞(AM) 乙酰肝素酶(HPSE)