检索结果-南通市图书馆

三塘湖盆地牛圈湖南-马中地区西山窑组一段储层特征及主控因素

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

矿物岩石 2024年第2期44卷 151-160页

作者：张孝合徐胜林胡军李杰陈安清杨帅王重闲刘孟琦呼唤成都理工大学油气藏地质及开发工程国家重点实验室四川成都610059 成都理工大学沉积地质研究院四川成都3610059 中国石油吐哈油田分公司勘探开发研究院新疆哈密839009

新疆维吾尔自治区东北部三塘湖盆地马朗凹陷牛圈湖南-马中地区中侏罗统西山窑组一段勘探潜力巨大,马朗凹陷具多类型储层特征共生的特点,目前对于牛圈湖南-马中地区储层特征及主控因素研究较少。以牛圈湖南-马中地区西山窑组一段为研究对... 详细信息

新疆维吾尔自治区东北部三塘湖盆地马朗凹陷牛圈湖南-马中地区中侏罗统西山窑组一段勘探潜力巨大,马朗凹陷具多类型储层特征共生的特点,目前对于牛圈湖南-马中地区储层特征及主控因素研究较少。以牛圈湖南-马中地区西山窑组一段为研究对象,利用490余口井1270件普通薄片、1197件铸体薄片、扫描电镜1197件、49块样品的压汞数据等进行储层特征及主控因素研究。结果表明,牛圈湖南-马中地区西山窑组一段储集砂岩岩性主要为长石岩屑砂岩,其次为岩屑砂岩,填隙物主要为胶结物,胶结物均值4.78%;主要孔隙类型为剩余原生粒间孔,其次为晶间孔和粒间溶孔。储层孔隙度均值12.23%,渗透率4.21×10^(-3)μm^(2)。压汞曲线分选系数均值1.5,最大孔喉半径1.4μm,孔喉分选较差,为小孔隙喉道。沉积微相和成岩作用共同影响储层物性,沉积微相是主控因素,水下分流河道储层物性最好,河口坝微相次之;成岩作用对于储层物性具有两面性,其中压实作用、胶结作用分别平均减少孔隙度19.03%,4.78%,溶蚀作用平均增加孔隙度1.53%。成岩阶段位于早成岩B期至中成岩A期,经历压实作用与胶结作用减孔后,主要由溶蚀作用增加孔隙度,所以可以形成较好储层;研究结果为挑选优势储层提供有效依据。

关键词：砂岩储层储层质量西山窑组一段三塘湖盆地

同方期刊数据库

Early Cretaceous Thrust and Nappe Tectonics in North Qilian Shan,Northern Tibetan Plateau:Evidence from Field Mapping,Geochronology,and Deep Structural Analysis

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2023年第4期97卷 1058-1077页

作者： HAN Lele DING Weicui CHEN xuanhua SHAO Zhaogang ZHANG Da XIAO Yongjun HE Chengguang WANG Zengzhen LI Bing ZHANG Yiping xu shenglin WANG Ye School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing 100083China SinoProbe Center Chinese Academy of Geological Sciences and China Geological SurveyBeijing 100037China Exploration and Development Research Institute Shengli Oilfield CompanySinopecDongyingShandong 257000China Henan Institute of Geological Survey ZhengzhouHenan 450001China

The North Qilian Shan fold and thrust belt,located at the northern Tibetan Plateau and southern margin of the Hexi Corridor,is a key tectonic unit to decode the formation and expansion of the *** studies emphasize the Cenozoic deformation due to the far-field response to the Indo-Asian collision,but the Mesozoic deformations are poorly constrained in this *** conducted detailed field mapping,structural analysis,geochronology,and structural interpretation of deep seismic reflectional profiling and magnetotelluric(MT)sounding,to address the superposed results of the Mesozoic and Cenozoic *** results recognized the North Qilian thrust and nappe system(NQTS),the root and the frontal belt are the North Qilian thrust(NQT),and the Yumu Shan klippe(YK),*** middle belt is located between the NQT and the *** granite zircon U-Pb dating from the middle belt yields an age of ca.415 Ma,which is similar to south *** thrusting displacement is estimated at ca.48 km by structural interpretation of deep *** timing is constrained in the early stage of the Early Cretaceous by the formation of simultaneous growth *** suggest that the NQTS has resulted from the far-field effect of the Lhasa-Qiangtang collision,and the Yumu Shan is uplifted by the superposed Cenozoic deformation.

关键词： geochronology structural analysis seismic reflectional and MT profiling Early Cretaceous North Qilian thrust and nappe system Tibetan Plateau

THE DEVELOPMENT AND STATE OF OCCUPATIONAL HEALTH AND SAFETY IN CHINESE FORESTRY

在线全文

学校读者我要写书评

暂无评论

Journal of Northeast Forestry University 1990年第1期1卷 104-108页

作者： Guo Jianping (1) Wang Nan (1) xu shenglin (1) 1. Northeast Forestry University 150040 Harbin P. R. China

This paper is a surve of the development and current state of occupational health andsafety in Chinese forestry and a general introduction to the administrative system and structure ofworking health and safety in the Chinese forestry *** also describes some accomplishments ofthe administrative units of forestry occupatiomal safety in recent decades and the important roles ofinvestigation and research in forestry *** suggestions and schemes for developing scientif-ic research on occupational health and safety its application in forestry production are presented.

关键词： Forestry production Occupational health and safety Workplace hazards Chainsaw safety Ergonomics

Late Paleozoic Element Migration and Accumulation under Intracontinental Sinistral Strike-slip Faulting in the West Junggar Orogenic Belt, NW China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2020年第6期94卷 2012-2030页

作者： WANG Ye CHEN xuanhua NIE Lanshi DING Weicui WANG xueqiu xu shenglin MA Feizhou HAN Lele SinoProbe Center Chinese Academy of Geological Sciences and China Geological SurveyBeijing 100037China Institute of Geophysical and Geochemical Exploration Chinese Academy of Geological SciencesLangfangHebei 065000China China University of Geosciences Beijing 100083China

The migration,accumulation and dispersion of elements caused by tectonic dynamics have always been a focus of attention,and become the basis of ***,the effects of faulting,especially strike-slip faulting,on the adjustment of geochemical element distribution,are still not *** this paper,we select the West Junggar Orogenic Belt(WJOB),NW China,as a case study to test the migration behavior of elements under tectonic *** WJOB is dominated by NE-trending large-scale sinistral strike-slip faults such as the Darabut Fault,the Mayile Fault,and the Baerluke Fault,which formed during the intracontinental adjustment under N-S compression during ocean-continental conversion in the Late *** maps of 13 elements,Al,W,Sn,Mo,Cu,Pb,Zn,As,Sb,Hg,Fe,Ni,and Au,are analyzed for the effects of faulting and folding on element distribution at the regional *** results show that the element distribution in the WJOB is controlled mainly by two mechanisms during tectonic deformation:first is the material transporting mechanism,where the movement of geological units is consistent with the direction of tectonic movement;second is the diffusion mechanism,especially by tectonic pressure dissolution driven by tectonic dynamics,where the migration of elements is approximately perpendicular or opposite to the direction of tectonic *** conclude that the adjustment of element distributions has been determined by the combined actions of transporting and diffusion mechanisms,and that the diffusion mechanism plays an important role in the formation of geochemical Au blocks in the WJOB.

关键词： tectono-geochemistry strike-slip fault system element distribution gold West Junggar Central Asian Orogenic Belt

Source-to-sink of Late carboniferous Ordos Basin: Constraints on crustal accretion margins converting to orogenic belts bounding the North China Block

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2020年第6期11卷 2031-2052页

作者： Anqing Chen Hao Zou James G.Ogg Shuai Yang Mingcai Hou Xiuwei Jiang shenglin xu Xiaoxing Zhang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059SichuanChina Department of Earth Atmospheric and Planetary SciencesPurdue UniversityWest LafayetteIN47907USA Key Laboratory of Tectonic Controls on Mineralization and Hydrocarbon Accumulation of Ministry of Land and Resources Chengdu University of TechnologyChengdu 610059SichuanChina State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China

The Upper Carboniferous Benxi Formation of the Ordos Basin is the lowest strata overlying Middle Ordovician above the major ca.150-Myr sedimentary gap that characterizes the entire North China Block(NCB).We apply an integrated analysis of stratigraphy,petrography,and U-Pb dates and Hf isotopes on detrital zircons to investigate its provenance and relationships to the progressive collisions that formed the Xing’an-Mongolia Orogenic Belt to the north and the Qinling Orogenic Belt to the *** results show that,in addition to regional patterns of siliciclastic influx from these new uplifted sources,the Benxi Formation is composed of two sequences corresponding to long-term glacial-interglacial cycles during the Moscovian to lower Gzhelian stages which drove global changes of eustatic sea level and *** spatio-temporal distribution of sediment isopachs and facies indicate there were two sediment-infilling pulses,during which the southern and the northern Ordos Basin developed tidal-reworked *** age spectra from detrital zircons,trace element patterns and εNd(t)values reveal that the siliciclastics forming the southern delta was sourced in the Qinling Orogenic Belt,whereas the northern delta was derived from the Xing’an-Mongolia Orogenic *** source-to-sink evolution of this Upper Paleozoic system records the progressive development of orogenic belts and uplifts forming on the southern and northern margins of the NCB prior to its collisions with the South China and the Siberian plates,respectively.

关键词： Benxi formation Detrital zircons Central asian orogen belt Tectonics Paleogeography Moscovian and kasimovian

In Situ Regeneration of Mo/MCM-22 with 1%O_2 at Reaction Temperature

在线全文

学校读者我要写书评

暂无评论

催化学报 2003年第11期24卷 805-806页

作者： BAI Jie, XIE Sujuan, LIU shenglin, xu Longya, LIN Liwu (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China) Dalian Institute of Chemical Physics The Chinese Academy of Sciences State Key Laboratory of Catalysis 辽宁 Dalian 116023

In recent years, the catalytic dehydroaromatization of methane to yield aromatics has been a challenging and intriguing topic in heterogeneous catalysis. Until now, the two effective methane dehydroaromatization catalysts are Mo/HZSM-5 and Mo/MCM-22. However, this reaction suffers from rapid catalyst deactivation due to coking. The stabilization of catalyst activity is a primary problem to be solved for its future application.

关键词： Mo/MCM-22 原位反应催化剂再生反应温度钼沸石甲烷氧气脱氢芳构化

The Late Carboniferous–Early Permian Ocean-Continent Transition in the West Junggar,Central Asian Orogenic Belt: Constraints from Columnar Jointed Rhyolite

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2019年第2期93卷 265-282页

作者： xu shenglin CHEN xuanhua LI Tingdong SHI Jianjie DING Weicui LI Bing HUANG Penghui ZHANG Yiping ZHANG Yaoyao MA Feizhou School of Earth Sciences and Resources China University of Geosciences Chinese Academy of Geological Sciences Beijing Research Institute of Geological Engineering Design

The West Junggar of the western Central Asian Orogenic Belt is one of the typical regions in the term of ocean subduction, contraction and continental growth in the Late Paleozoic. However, it is still controversial on the exact time of ocean-continent transition so far. This study investigates rhyolites with columnar joint in the West Junggar for the first *** on zircon U-Pb dating, we determined that the ages of the newly-discovered rhyolites are between 303.6 and 294.5 Ma, belonging to Late Carboniferous–Early Permian, which is the oldest rhyolite with columnar joint preserved in the world at present. Geochemical results show that the characteristics of the major element compositions include a high content of SiO_2(75.78–79.20 wt%) and a moderate content of Al_2O_3(12.21–13.19 wt%). The total alkali content(K_2O +Na_2O) is 6.14–8.05 wt%, among which K_2O is 2.09–4.72 wt% and the rate of K_2O/Na_2O is 0.38–3.05. Over-based minerals such as Ne, Lc, and Ac do not appear. The contents of TiO_2(0.09–0.24 wt%), CaO(0.15–0.99 wt%) and MgO(0.06–0.18 wt%) are low. A/CNK=0.91–1.68, A/NK=1.06–1.76, and as such, these are associated with the quasi-aluminum-weak peraluminous high potassium calc-alkaline and some calc-alkaline magma series. These rhyolites show a significant negative Eu anomaly with relative enrichment of LREE and LILE(Rb, Ba, Th, U, K) and depletion of Sr, HREE and HFSE(Nb, Ta, Ti, P). These rhyolites also have the characteristics of an A2-type granite, similar to the Miaoergou batholith,which indicates they both were affected by post-orogenic extension. Combining petrological, zircon U-Pb dating and geochemical characteristics of the rhyolites, we conclude that the specific time of ocean-continent transition of the West Junggar is the Late Carboniferous–Early Permian.

关键词： rhyolite columnar joint zircon U-Pb dating geochemistry ocean-continent transition West Junggar

The Crucial Role of Tectono-sedimentary Records of China in Understanding Paleogeographic Evolution

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2019年第S1期93卷 5-7页

作者： CHEN Anqing HOU Mingcai XIONG Chen ZHONG Hanting ZHANG Lei xu shenglin OGG G.James State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Chengdu University of Technology) chengdu 610059China

The Central-east Asian continent,in which China is presently located,is a composite terrane composed of many small or micro-scale blocks and orogenic belts (Ren et al.,1999).Compared with large-scale cratons such as North America and Siberia,the blocks that make up China are much *** example,the North China and Siberian blocks,as well as some part of the ancient African continent,belonged to part of the Colombia supercontinent and connected with Baltica (Rogers and Santosh,2002;Lu et al.,2002).After major rifting episodes at 1.8-1.6 Ga.

关键词： paleogeography sediment Cambrian Neoproterozoic China

在线全文

学校读者我要写书评

暂无评论

作物表型信息获取机器人底盘设计与试验

农业机械学报 2023年第S02期54卷 388-399页

作者：徐圣林朱立成韩振浩王瑞雪徐庆钟贾晓峰中国农业机械化科学研究院集团有限公司北京100083 青岛农业大学机电工程学院青岛266109 农业装备技术全国重点实验室北京100083

为进一步提升农业机器人底盘田间适应性和行驶稳定性,面向我国山东地区小麦表型信息获取作业场景,设计了一种四轮独立驱动转向的农业机器人底盘。根据小麦种植农艺需求和行驶地形环境,确定了底盘总体布局方案和主要技术参数。分别开展... 详细信息

为进一步提升农业机器人底盘田间适应性和行驶稳定性,面向我国山东地区小麦表型信息获取作业场景,设计了一种四轮独立驱动转向的农业机器人底盘。根据小麦种植农艺需求和行驶地形环境,确定了底盘总体布局方案和主要技术参数。分别开展了底盘驱动部件、转向部件以及摆臂平衡部件设计,并进行了参数校核和元件选型。建立了关键部件ANSYS有限元模型,分别进行了摆臂平衡机构的应力形变分析和车架振动模态模拟,仿真结果表明,摆臂平衡机构的强度和刚度均能满足设计要求,车架能够有效避免因地形激励产生的共振。建立底盘ADAMS动力学仿真模型,分别进行纵向、横向稳定性分析和单侧凸起、凹坑越障性分析,仿真结果表明,底盘横纵向稳定性能够满足设计要求,摆臂平衡机构能够有效补偿单侧障碍造成的质心高度变化,提高了底盘的行驶稳定性。田间试验表明,机器人底盘具有良好的行驶性能,硬质地面直线行驶平均偏驶率为0.51%,田间地面平均偏驶率为1.13%。原地转向中心点偏移量为3.1 mm,阿克曼转向最小转向半径为1125 mm。纵向翻倾角为34°,横向翻倾角为28°。单侧越障最大高度为160 mm,单侧跨坑最大深度为160 mm。

关键词：机器人底盘表型信息获取独立驱动转向