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Genetic mechanism and main controlling factors of high-quality clastic rock reservoirs in deep and ultradeep layers:A case study of Oligocene Linhe Formation in Linhe Depression,Hetao Basin,NW China

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Petroleum Exploration and Development 2024年第3期51卷 548-562页

作者： SHI Yuanpeng LIU Zhanguo wang shaochun WU Jin LIU Xiheng HU Yanxu CHEN Shuguang FENG Guangye wang Biao wang Haoyu PetroChina Huabei Oilfield Company Renqiu 062552China PetroChina Hangzhou Research institute of Geology Hangzhou 310023China

Based on new data from cores,drilling and logging,combined with extensive rock and mineral testing analysis,a systematic analysis is conducted on the characteristics,diagenesis types,genesis and controlling factors of deep to ultra-deep abnormally high porosity clastic rock reservoirs in the Oligocene Linhe Formation in the Hetao *** reservoir space of the deep to ultra-deep clastic rock reservoirs in the Linhe Formation is mainly primary pores,and the coupling of three favorable diagenetic elements,namely the rock fabric with strong compaction resistance,weak thermal compaction diagenetic dynamic field,and diagenetic environment with weak fluid compaction-weak cementation,is conducive to the preservation of primary *** Linhe Formation clastic rocks have a superior preexisting material composition,with an average total content of 90%for quartz,feldspar,and rigid rock fragments,and strong resistance to *** geothermal gradient in Linhe Depression in the range of(2.0–2.6)°C/100 m is low,and together with the burial history of long-term shallow burial and late rapid deep burial,it forms a weak thermal compaction diagenetic dynamic field *** diagenetic environment of the saline lake basin is characterized by weak fluid *** the same time,the paleosalinity has zoning characteristics,and weak cementation in low salinity areas is conducive to the preservation of primary *** hydrodynamic conditions of sedimentation,salinity differentiation of ancient water in saline lake basins,and sand body thickness jointly control the distribution of high-quality reservoirs in the Linhe Formation.

关键词： Hetao Basin Linhe Depression Oligocene Linhe Formation deep and ultra-deep abnormally high porosity reservoir genesis

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深层—超深层优质碎屑岩储层成因及主控因素——以河套盆地临河坳陷古近系渐新统临河组为例

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石油勘探与开发 2024年第3期51卷 478-489页

作者：史原鹏刘占国王少春伍劲刘喜恒胡延旭陈树光冯广业王标王浩宇中国石油华北油田公司河北任丘062552 中国石油杭州地质研究院杭州310023

基于岩心、钻井和测井等新资料,结合大量岩矿测试分析,对河套盆地临河坳陷古近系渐新统临河组深层—超深层碎屑岩储层特征、成岩作用类型、异常高孔储层成因及发育控制因素开展系统分析。研究表明:(1)临河组深层—超深层碎屑岩异常高孔... 详细信息

基于岩心、钻井和测井等新资料,结合大量岩矿测试分析,对河套盆地临河坳陷古近系渐新统临河组深层—超深层碎屑岩储层特征、成岩作用类型、异常高孔储层成因及发育控制因素开展系统分析。研究表明:(1)临河组深层—超深层碎屑岩异常高孔储层储集空间以原生孔为主,抗压实能力强的物质组构基础、弱压实成岩动力场和流体弱压实-弱胶结成岩环境等3大有利成岩要素耦合利于原生孔大量保存;(2)临河组碎屑岩先存物质组构优越,石英、长石和刚性岩屑总含量平均值可达90%,抗压实能力强;(3)临河坳陷地温梯度低,仅为(2.0~2.6)℃/100 m,与早期长期浅埋—晚期快速深埋的埋藏方式共同形成弱压实成岩动力场环境;(4)咸化湖盆沉积地层的成岩环境中,成岩流体产生的压实作用弱,同时古盐度具有分异性,低盐度区胶结作用弱,利于原生孔保存;(5)沉积水动力条件、咸化湖盆古水体盐度分异和砂体厚度等3大因素共同控制临河组优质储层分布。

关键词：河套盆地临河坳陷古近系渐新统临河组深层—超深层异常高孔储层成因

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CONSERVATIVE CONFORMING AND NONCONFORMING VEMS FOR FOURTH ORDER NONLINEAR SCHRODINGER EQUATIONS WITH TRAPPED TERM

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Journal of Computational Mathematics 2024年第2期42卷 454-499页

作者： Meng Li Jikun Zhao Zhongchi wang shaochun Chen School of Mathematics and Statistics Zhengzhou UniversityZhengzhou 450001China School of Computer Science and Engineering Beihang universityBeijing 100083China

This paper aims to construct and analyze the conforming and nonconforming virtual element methods for a class of fourth order nonlinear Schrodinger equations with trapped *** mainly consider three types of virtual elements,including H^(2) conforming virtual element,C^(0) nonconforming virtual element and Morley-type nonconforming virtual *** fully discrete schemes are constructed by virtue of virtual element methods in space and modified Crank-Nicolson method in *** prove the mass and energy conservation,the boundedness and the unique solvability of the fully discrete *** introducing a new type of the Ritz projection,the optimal and unconditional error estimates for the fully discrete schemes are presented and ***,two numerical examples are investigated to confirm our theoretical analysis.

关键词： H^(2)conforming virtual element C^(0)nonconforming virtual element Morleytype nonconforming virtual element Nonlinear Schrodinger equation Conservation Convergence

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流域蒸散与地理坐标的关系--以中国云南南盘江流域为例

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水力发电 2024年第5期50卷 7-15,58页

作者：刘干余航胡凤林潘梦楠裴鼎王绍春王龙云南农业大学水利学院云南昆明650500 昆明学院建筑工程学院云南昆明650214

以中国云南南盘江为研究区,利用1980年~2016年32个雨量站的降水数据、21个蒸发站的蒸发量数据和13个水文站的流量数据,基于Budyko-Fu方程,分析了流域蒸发量及敏感性与地理坐标的关系。结果表明:南盘江流域AET与纬度和海拔间呈显著负相关... 详细信息

以中国云南南盘江为研究区,利用1980年~2016年32个雨量站的降水数据、21个蒸发站的蒸发量数据和13个水文站的流量数据,基于Budyko-Fu方程,分析了流域蒸发量及敏感性与地理坐标的关系。结果表明:南盘江流域AET与纬度和海拔间呈显著负相关,相关系数分别为R=-0.8607(α<0.01)和R=-0.6003(α<0.05),且PET与纬度的关系与其一致;13个子流域的流域特征值m均与经度、纬度、海拔呈负相关,m值同时受到了经度、纬度、海拔的影响,其中m值与纬度和海拔的关系密切,相关系数分别为R=-0.8885(α<0.01)、R=-0.6224(α<0.05);实际蒸发量和蒸散率对m的敏感性均与纬度存在线性相关关系,相关系数分别为R=0.8476(α<0.01)、R=0.5222(α<0.1),且位于流域西部11个子流域的实际蒸发量、蒸散率对干燥度的敏感性和纬度之间具有2次多项式的非线性关系,降水的空间分布影响了实际蒸发量和蒸散率对干燥度的敏感性空间分布。

关键词：实际蒸发量敏感性蒸散率流域特征值南盘江流域

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配网应急一体化看图指挥系统设计应用

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农村电气化 2024年第3期 60-65页

作者：陈根奇黄振华王少春孙伟刚李爽余剑国网浙江省电力有限公司绍兴供电公司浙江绍兴312000

针对配网调控中心面临事故增多及停电时户数管控要求不断提高的趋势,利用现有的调控云平台,采用人工智能、计算机等技术汇集配电自动化设备、主网调度自动化系统的数据资源设计配网应急一体化看图指挥系统,实现故障抢修、舆情管控的高... 详细信息

针对配网调控中心面临事故增多及停电时户数管控要求不断提高的趋势,利用现有的调控云平台,采用人工智能、计算机等技术汇集配电自动化设备、主网调度自动化系统的数据资源设计配网应急一体化看图指挥系统,实现故障抢修、舆情管控的高效联动。配网应急一体化看图指挥系统具备故障研判、图形化展示、短信推送等功能,系统在某地区配网调控中心实际投运,能够辅助配网调控人员高效处置配电网事故。

关键词：配网看图指挥调控云可视化故障处置

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Comparative study on foundation treatment methods of immersed tunnels in China

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Frontiers of Structural and Civil Engineering 2020年第1期14卷 82-93页

作者： shaochun wang Xuehui ZHANG Yun BAI Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China

Based on engineering practices of four typical traffic immersed tunnels built in China,this paper details the features of the four dominant foundation treatment methods for immersed tunnel construction:pile foundation,sand flow foundation,grouting foundation,and gravel bedding *** stress time-history of different method are specified first,plus a summary of settlement assessment method for foundation quality ***,a comprehensive comparison of settlement and cost of these four foundation treatment methods is conducted to highlights the specific merits,disadvantages and conditions encountered in each foundation treatment method,based on real projects *** findings of this article could henceforth be applied to foundation treatment work in immersed tube tunnel construction.

关键词： foundation treatment method immersed tunnel subsoil stress settlement

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The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints by scaled model test

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Frontiers of Structural and Civil Engineering 2019年第5期13卷 1200-1213页

作者： shaochun wang Xi JIANG Yun BAI Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China

With the shield tunnel going deeper and deeper, the circumferential axial force becomes the governing factor rather than the bending moment. The hand hole acts as a weak point and initial damage in the segment joint especially when the circumferential axial force is extremely high. Despite the wide application of steel fiber or synthetic fiber in t|ie tunneling, limited researches focus on the structural responses of segment joint with macro structural synthetic fiber (MSSF). In this paper, a 1:2 reduced-scale experiment was conducted to study the structural perfonnance of the segment joint with different types of hand holes under ultra-high axial force. Special attention is paid to failure mode and structural performance (bearing capacity, deformation, cracking, and toughness). Moreover, segment joints with MSSF are also tested to evaluate the effects of MSSF on the failure mode and structural performance of the segment joints. The experiment results show that the hand hole becomes the weakest point of the segment joint under ultra-high axial force. A\/-type crack pattern is always observed before the final failure of the segment joints. Different types and sizes of the hand hole have different degree of influences on the structural behavior of segment joints. The segment joint with MSSF shows higher ultimate bearing capacity and toughness compared to segment joint with common concrete. Besides, the MSSF improves the initial cracking load and anti-spallling resistance of the segment joint.

关键词： shield tunneling structural synthetic fiber concrete hand hole segment joint ultimate bearing capacity crack pattern

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Joint system consumption minimization and workload allocation in edge-core network

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The Journal of China Universities of Posts and Telecommunications 2018年第3期25卷 45-54页

作者： wang shaochun Lu Zhaoming Wen Xiangming wang Luhan Ma Lu Beijing Laboratory of Advanced Information Networks Beijing University of Posts and Telecommunications Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications

The explosive increase of smart devices and mobile traffic results intolerable network latency and degraded service to the end-users. in heavy burden on backhaul and core network, As a complement to core network, edge network contributes to relieving network burden and improving user experience. To investigate the problem of optimizing the total consumption in an edge-core network, the system consumption minimization problem is fromulated, considering the energy consumption and delay. Given that the formulated problem is a mixed nonlinear integer programming （MNIP） , a low-complexity workload allocation algorithm is proposed based on interior-point method. The proposed algorithm has an extremely short running time in practice. Finally, simulation results show that edge network can significantly complement core network with much reduced backhaul energy consumption and delay.

关键词： edge network core network system consumption optimization workload allocation

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一起配网10 kV线路接地引起多重并发事故案例分析

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农村电气化 2024年第7期 42-45,57页

作者：黄振华陈根奇王少春赵印明陈艳李成标杜旭国网浙江绍兴供电公司浙江绍兴312000 浙江中通文博服务有限公司浙江绍兴312000

介绍了一起10 kV线路因单相接地故障,引起其他线路绝缘性能降低,造成相间短路,同时因为温渎变电站华都9031线开关机械卡涩无法正常分闸导致越级跳闸的事故案例,对事故的处置流程进行了详细描述,同时对故障的原因进行了分析,最后给出相... 详细信息

介绍了一起10 kV线路因单相接地故障,引起其他线路绝缘性能降低,造成相间短路,同时因为温渎变电站华都9031线开关机械卡涩无法正常分闸导致越级跳闸的事故案例,对事故的处置流程进行了详细描述,同时对故障的原因进行了分析,最后给出相应的整改措施。

关键词：配网接地越级跳闸电缆故障

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Improvement of Boxcar Integrator and Its Application to Low Resistance Measurement of Inductive Load Coil

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International Journal of Minerals,Metallurgy and Materials 1998年第3期12卷 180-184页

作者： Xisheng Li shaochun wang(Information Engineering School, University of Science and Technology Beijing, Beijing 100083, China) Information Engineering School University of Science and Technology Beijing Beijing 100083 China

A boxcar integrator is described which is suitable for the low-repetition-rate signal processing. This boxcar integrator, named fixed-interval mode boxcar integrator, is able to reject harmonics other than the first harmonic component. It can also decrease the effective time constant In many situations, the antialiasing filter with narrow bandwidth will cause distortion of the input signal. The fixed-interval mode boxcar integrator with suitable gate width can achieve relative high performance without signal distortion because the bandwidth of its antialiasing filter can be wider than that in the fixed-Point boxcar integrator. ms boxcar integrator is used as majn part of signalprocessing circult in the low resisance measurement of inductive load coil. The results of experiments show that the fixed-interval boxcar integrator is suitable for low-repetition-rate use.

关键词： signal processing resistance measurement boxcar integrator

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