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Paleo-uplift forced regional sedimentary evolution:A case study of the Late Triassic in the southeastern Sichuan Basin,South China

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Petroleum 2024年第3期10卷 462-473页

作者： Fangyu He qingsong cheng Dongtao Zhang Yubing Ji Ziying Wang Tenghui Lu PetroChina Zhejiang Oilfield Company Hangzhou 310023China School of Geoscience and Technology Southwest Petroleum UniversityChengdu610500China Sichuan Natural Gas Geology Key Laboratory Southwest Petroleum UniversityChengdu610500China

The sedimentary environment of the Upper Triassic in the southeastern Sichuan Basin is obviously controlled by Luzhou paleo-uplift(LPU).However,the influence of paleo-uplift on the sedimentary patterns of the initial stages of this period in the southeastern Sichuan Basin has not yet been clear,which has plagued oil and gas exploration and *** study shows that there is a marine sedimentary sequence,which is considered to be the first member of Xujiahe Formation(T_(3)X^(1))in the southeastern Sichuan *** development of LPU resulted in the sedimentary differences between the eastern and western Sichuan Basin recording T_(3)X^(1)and controlled the regional sedimentary *** western part is dominated by marine sediments,but the eastern paleo-uplift area is dominated by continental sedimentation in the early stage of T_(3)X^(1),and it begins to transform into a marine sedimentary environment consistent with the whole basin in the late stage of the period recorded by the Xujiahe *** evidences are as follows:(1)time series:based on the cyclostratigraphy analysis of Xindianzi section and Well D2,in the southeastern Sichuan Basin,the period of sedimentation of the Xujiahe Formation is about 5.9 Ma,which is basically consistent with the Qilixia section,eastern Sichuan basin,where the Xujiahe Formation is widely considered to be relatively complete;(2)distribution and evolution of palaeobiology:based on analysis of abundance evolution of major spore-pollen,many land plant fossils are preserved in the lower part of T_(3)X^(1),indicates the sedimentary environment of continental *** the upper part of T_(3)X^(1),the fossil of terrestrial plants decreased,while the fossil of marine and tidal environment appeared,this means that it was affected by the sea water in the late stages of T_(3)X^(1);(3)geochemistry:calculate the salinity of water from element indicates that the uplift area is continental sedimentary environment in the early stage

关键词： Luzhou paleo-uplift Late Triassic Cyclostratigraphy Palynology Sedimentary environment

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Even-carbon predominance of Monomethyl branched alkanes in Humic coal from Junggar Basin,NW China

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Acta Geochimica 2020年第3期39卷 434-444页

作者： qingsong cheng Min Zhang Guanghui Huang College of Resources and Environment Yangtze UniversityWuhan 430100China Key Laboratory of Exploration Technology for Oil&Gas Research(Yangtze University) Ministry of EducationWuhan 430100China

A series of Monomethyl branched alkanes compounds were detected between nC14-nC36,in immature and low maturity Jurassic humic coal,Junggar basin.2-methyl alkanes and 3-methyl alkanes accounted for the vast majority of the *** is worth noting that the2-methyl alkanes in the humic coal samples show an obvious distribution of even carbon predominances rarely reported in the *** results show that with the increase of Pr/Ph(pristane/phytane),the even carbon dominance of 2-methyl alkanes is more obvious,while the odd carbon number distribution of 3-methyl alkanes is *** Pr/Ph increases in the humic coal,the relative content of the hopanes increased,while the relative content of 2-methyl alkanes and 3-methyl alkanes increases first and then decreases.

关键词： Junggar basin Humic coal Even carbon predominance 2-methyl alkanes 3-methyl alkanes

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Gas Sources of Natural Gas Hydrates in the Muli Permafrost of Qilian Mountain

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Acta Geologica Sinica(English Edition) 2016年第6期90卷 2281-2282页

作者： cheng qingsong GONG Jianming ZHANG Min College of Resources and Environment Yangtze UniversityWuhan 430100HubeiChina Qingdao Institute of Marine Geology Qingdao 266071ShandongChina

The gas hydrates in the permafrost region of Qilian Mountain are characterized by low latitude, thin thickness, shallow burial depth, abundant coal seams, high contents of heavy hydrocarbons and multiple sets of sourc... 详细信息

关键词： Gas Sources of Natural Gas Hydrates in the Muli Permafrost of Qilian Mountain rock

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双重预防机制在化工安全管理中的应用

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化工管理 2024年第5期 91-93页

作者：程青松刘清泉新疆泰新检验检测服务有限公司新疆石河子832000

生产安全是化工企业发展的过程中不可或缺的重要基础。化工安全管理的强弱与化工企业的经济效益息息相关。如何切实提高化工安全管理质量,是一些化工企业亟待解决的问题。文章从化工安全管理的重要性入手,分析了双重预防机制在化工企业... 详细信息

生产安全是化工企业发展的过程中不可或缺的重要基础。化工安全管理的强弱与化工企业的经济效益息息相关。如何切实提高化工安全管理质量,是一些化工企业亟待解决的问题。文章从化工安全管理的重要性入手,分析了双重预防机制在化工企业安全管理中的运行特点及运用策略。

关键词：双重预防机制安全管理模式安全生产化工企业

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The contribution of bacteria to organic matter in coal-measure source rocks

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Acta Geochimica 2019年第3期38卷 364-375页

作者： qingsong cheng Min Zhang Guanghui Huang Wenjun Zhang College of Resources and Environment Yangtze University Key Laboratory of Exploration Technology for Oil & Gas Research (Yangtze University) Ministry of Education Bohai Petroleum Research Institute CNOOC (China) Co.Ltd.Tianjin Branch

On the basis of GC–MS analysis, a suite of nine coal-measure source rocks(Ro 0.51%–0.63%) from the southern margin of Junggar basin was found to contain many biomarkers for bacterially-generated hydrocarbons:hopane, sesquiterpene, C_(23)+ monomethyl alkanes(even carbon predominance), and C_(24)+ alkyl ***–eval and microscope analysis indicate that vitrinite(especially desmocollinite and homocollinite) plays a significant role in the generation of hydrocarbons in coalmeasure source rocks. Vitrinite performs this role by absorbing ultramicroscopic organic matter, generally in the form of resins or bacterial plastids. C_(23)+ monomethyl alkanes(even carbon predominance) and C_(24)+ alkyl cyclohexane series compounds are derived from bacterial metabolites of higher plants. The ultramicro organic matter adsorbed by vitrinite source rocks in the study area is probably ultramicro bacterial plastids. Because the organic matter of higher plants with low hydrogen content has been transformed into organic matter rich in hydrogen by bacteria, the hydrocarbon generation capacity of source rocks is greatly improved. In other words, in coal-measure source rocks, bacteria play an important role in hydrocarbon generation.

关键词： Coal-measure source rocks Organic matter type Bacteria Monomethyl alkanes Alkyl cyclohexane

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渝西大安地区上二叠统龙潭组煤岩气地质特征及勘探前景

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中国石油勘探 2024年第4期29卷 97-108页

作者：舒红林章超程青松苏展鸿张涵冰郭宁孟阳中国石油浙江油田公司中国石油集团测井有限公司中国石油集团东方地球物理勘探有限责任公司研究院

上二叠统龙潭组煤系地层是四川盆地重要的烃源岩层系,在钻探过程中普遍见到良好的油气显示,但前期的研究工作仅停留在烃源岩评价层面,未对煤岩气的地质条件开展评价。基于此,通过对渝西大安地区龙潭组煤岩的取心实测数据和相关钻井资料... 详细信息

上二叠统龙潭组煤系地层是四川盆地重要的烃源岩层系,在钻探过程中普遍见到良好的油气显示,但前期的研究工作仅停留在烃源岩评价层面,未对煤岩气的地质条件开展评价。基于此,通过对渝西大安地区龙潭组煤岩的取心实测数据和相关钻井资料的综合分析,对龙潭组煤岩的分布特征、烃源特征、储层特征、含气性特征和保存条件等方面进行了研究,明确了渝西大安地区龙潭组煤岩气地质条件及勘探前景。研究认为:大安地区位于龙潭组煤岩沉积有利相带,煤岩广泛分布,单层厚度薄,发育较为集中;煤岩结构以原生结构为主,具有中低灰分特征,割理和孔隙发育;煤岩含气性好,游离气含量高,具有高孔隙度、高地层压力和高含气量的特征;煤岩顶底板发育泥岩,保存条件好。综合评价表明,大安地区龙潭组煤岩孔渗性好、含气量高且埋深适中,具有良好的勘探前景。

关键词：四川盆地大安地区龙潭组煤岩气地质特征勘探前景

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Planning of DC Electric Spring with Particle Swarm Optimization and Elitist Non-dominated Sorting Genetic Algorithm

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 574-583页

作者： qingsong Wang Siwei Li Hao Ding Ming cheng Giuseppe Buja School of Electrical Engineering and Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment Southeast UniversityNanjing 210096China School of Software Engineering Southeast universitySuzhou 215123China

This paper addresses the planning problem of parallel DC electric springs (DCESs). DCES, a demand-side management method, realizes automatic matching of power consumption and power generation by adjusting non-critical load (NCL) and internal storage. It can offer higher power quality to critical load (CL), reduce power imbalance and relieve pressure on energy storage systems (RESs). In this paper, a planning method for parallel DCESs is proposed to maximize stability gain, economic benefits, and penetration of RESs. The planning model is a master optimization with sub-optimization to highlight the priority of objectives. Master optimization is used to improve stability of the network, and sub-optimization aims to improve economic benefit and allowable penetration of RESs. This issue is a multivariable nonlinear mixed integer problem, requiring huge calculations by using common solvers. Therefore, particle Swarm optimization (PSO) and Elitist non-dominated sorting genetic algorithm (NSGA-II) were used to solve this model. Considering uncertainty of RESs, this paper verifies effectiveness of the proposed planning method on IEEE 33-bus system based on deterministic scenarios obtained by scenario analysis.

关键词： DC distribution network DC electric spring non-dominated sorting genetic algorithm particle swarm optimization renewable energy source

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Hydrocarbon Geological Conditions and Exploration Potential of Mesozoic–Paleozoic Marine Strata in the South Yellow Sea Basin

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Journal of Ocean University of China 2019年第6期18卷 1329-1343页

作者： YUAN Yong CHEN Jianwen LIANG Jie XU Ming LEI Baohua ZHANG Yuxi cheng qingsong WANG Jianqiang Qingdao Institute of Marine Geology China Geological SurveyQingdao 266071China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Faculty of Earth Resources China University of GeosciencesWuhan 430074China College of Resources and Environment Yangtze UniversityWuhan 430100China

No substantial breakthroughs have been made in hydrocarbon exploration of the South Yellow Sea *** is believed that the Mesozoic-Paleozoic marine sedimentary formation in the South Yellow Sea Basin is similar to that in the Sichuan ***,outcrop,drilling,and seismic data were determined and compared with the research results on petroleum geological conditions in the Yangtze land area,and the hydrocarbon geological conditions were analyzed comprehensively from multiple aspects,such as basin evolution and main source rocks,reservoir characteristics,preservation conditions,and structural *** results show that two main stages in the South Yellow Sea Basin(the stable evolution stage of the Mesozoic-Paleozoic marine basin and the Mesozoic-Cenozoic tectonic reformation and basin formation stage)were important for the development and evolution of four sets of main source *** dominated by carbonate rocks,three sets of capping beds with good sealing capability,relatively weak magmatic activity,and multiple types of structural traps jointly constituted relatively good hydrocarbon-reservoir-forming *** were four sets of main source-reservoir-cap assemblages and three possible hydrocarbon reservoir types(primary residual-type hydrocarbon reservoir,shallow reformed-type hydrocarbon reservoir,and composite-type hydrocarbon reservoir)developed in the marine *** is concluded that the marine strata in the South Yellow Sea Basin have relatively good hydrocarbon *** Laoshan Uplift is characterized by stable structure,complete preserved source reservoir cap assemblage,and large structural traps,and thus it is the preferred prospect zone for marine Paleozoic hydrocarbon exploration in this area.

关键词： hydrocarbon geological conditions exploration potential marine Mesozoic-Paleozoic strata South Yellow Sea Basin

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Thermal runaway evolution of a 280 Ah lithium-ion battery with LiFePO_(4) as the cathode for different heat transfer modes constructed by mechanical abuse

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Journal of Energy Chemistry 2024年第6期93卷 32-45,I0002页

作者： Zhixiang cheng chengdong Wang Wenxin Mei Peng Qin Junyuan Li qingsong Wang State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026AnhuiChina

Lithium iron phosphate batteries have been increasingly utilized in recent years because their higher safety performance can improve the increasing trend of recurring thermal runaway ***,the safety performance and mechanism of high-capacity lithium iron phosphate batteries under internal short-circuit challenges remain to be *** work analyzes the thermal runaway evolution of high-capacity LiFePO_(4) batteries under different internal heat transfer modes,which are controlled by different penetration *** penetration cases involving complete penetration and incomplete penetration were detected during the test,and two modes were performed incorporating nails that either remained or were removed after penetration to comprehensively reveal the thermal runaway mechanism.A theoretical model of microcircuits and internal heat conduction is also *** results indicated three thermal runaway evolution processes for high-capacity batteries,which corresponded to the experimental results of thermal equilibrium,single thermal runaway,and two thermal runaway *** difference in heat distribution in the three phenomena is determined based on the microstructure and material structure near the *** controlling the heat dissipation conditions,the time interval between two thermal runaway events can be delayed from 558 to 1417 s,accompanied by a decrease in the concentration of in-situ gas production during the second thermal runaway event.

关键词： Lithium-ion battery safety Micro short-circuit cell Heat transfer modes Internal short circuit Nail-penetration test

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渝西永川地区DB1井茅一段灰质源岩气地球化学特征及意义

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长江大学学报（自然科学版） 2024年第5期21卷 37-46页

作者：程青松王劲松章超张文萍赵新胜周博宇何方雨王紫瑛中国石油浙江油田分公司勘探开发研究院浙江杭州310023

渝西永川地区DB1井在二叠系茅口组一段(P1m1)灰质源岩中获得了工业气流。为了明确DB1井P1m1天然气类型,进行了一系列地质-地球化学分析。在对DB1井P1m1灰质源岩和天然气进行系统采样的基础上,首先对样品进行了有机碳分析、热解、镜质体... 详细信息

渝西永川地区DB1井在二叠系茅口组一段(P1m1)灰质源岩中获得了工业气流。为了明确DB1井P1m1天然气类型,进行了一系列地质-地球化学分析。在对DB1井P1m1灰质源岩和天然气进行系统采样的基础上,首先对样品进行了有机碳分析、热解、镜质体反射率分析和含气量测定;然后,进一步进行了有机显微组分鉴定、天然气组分以及碳同位素分析。地球化学分析结果表明,DB1井P1m1灰质源岩有机质丰度高、有机质类型好且处于过成熟阶段;与此同时,P1m1灰质源岩生烃强度大,具有形成规模气藏的物质基础。含气量分析结果表明,DB1井P1m1灰质源岩解析气中损失气占比较高,灰质源岩气以游离气赋存状态为主。天然气地球化学分析结果表明,一方面,DB1井P1m1试气采集气与岩心解析气组分均呈现油型气特征;另一方面,碳同位素组成一致,表现出正常序列特征。此外,P1m1天然气与P1m1灰质源岩成熟度一致。综合分析认为,渝西地区DB1井P1m1灰质源岩气为自生自储非常规气。

关键词：渝西茅口组一段灰质源岩天然气碳同位素

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