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渤海湾盆地东营凹陷古近系富碳酸盐页岩沉积微相组合及沉积环境分析

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石油实验地质 2024年第3期46卷 522-531页

作者：王伟庆李朋波李博方正伟王玉环中国石化页岩油气勘探开发重点实验室山东东营257015 中国石化胜利油田分公司勘探开发研究院山东东营257015 页岩油气富集机理与高效开发全国重点实验室北京102206

渤海湾盆地东营凹陷富碳酸盐页岩的微相特征识别、划分及其组合方式研究,是揭示相关沉积物沉积成因和空间结构的基础。基于岩心和岩石薄片资料,利用X射线衍射、扫描电镜分析等测试分析技术,通过高分辨率的岩心取样和测试,对东营凹陷斜... 详细信息

渤海湾盆地东营凹陷富碳酸盐页岩的微相特征识别、划分及其组合方式研究,是揭示相关沉积物沉积成因和空间结构的基础。基于岩心和岩石薄片资料,利用X射线衍射、扫描电镜分析等测试分析技术,通过高分辨率的岩心取样和测试,对东营凹陷斜坡带富碳酸盐页岩开展了岩石矿物学和古生物学等方面的分析。结果表明,该区富碳酸盐页岩内部可以划分出藻席微相、介壳页岩微相等10种微相类型,各类微相通过不同方式叠加构成一系列微相组合,并显示出米级尺度的页岩相变特征。对应于东营凹陷咸水湖泊演化的不同阶段,可划分出浅水蒸发岩微相组合、震荡半深水页岩微相组合和震荡深水页岩微相组合等3种岩石微相组合,这些组合通常由高频振荡背景下湖平面升降旋回控制。东营凹陷沙河街组四段上亚段自下而上,伴随气候的湿热、风化增强、湖平面上升、湖泊盐度降低,震荡深水页岩微相组合占比逐渐增加,浅水蒸发岩微相组合逐渐降低,一系列向上水体变深的沉积旋回记录了东营凹陷中始新世持续沉降和生物—环境协同演化的特点。

关键词：沉积微相组合沉积环境成因机理页岩沙河街组东营凹陷渤海湾盆地

“碳”索绿色转型新机遇——2024年绿色金融展望

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金融与经济 2024年第2期 18-30页

作者：鲁政委钱立华方琦尹春哲徐金兴业银行兴业碳金融研究院兴业经济研究咨询股份有限公司

2023年以来,随着中国碳达峰、碳中和工作的深入推进,中国绿色信贷与绿色债券都呈现了高速发展态势。2023年10月30—31日,中央金融工作会议明确提出做好绿色金融等五篇大文章,为绿色金融发展再次注入强大动力。随着广义绿色金融的内涵与... 详细信息

2023年以来,随着中国碳达峰、碳中和工作的深入推进,中国绿色信贷与绿色债券都呈现了高速发展态势。2023年10月30—31日,中央金融工作会议明确提出做好绿色金融等五篇大文章,为绿色金融发展再次注入强大动力。随着广义绿色金融的内涵与外延不断扩展,国内外绿色与可持续金融市场和相关体系建设持续推进,呈现出全球转型金融持续推进、可持续债券市场稳步增长、全国碳市场价格持续提升、自愿减排市场迎来发展机遇、碳排放核算标准体系逐步完善等五大发展趋势。

关键词：绿色金融转型金融碳市场碳排放

Shale pore characteristics of Shahejie Formation: Implication for pore evolution of shale oil reservoirs in Dongying sag, north China

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Petroleum Research 2019年第2期4卷 113-124页

作者： Shun Zhang Huimin Liu Min Wang Xinjin Liu Huilai Liu Youshu Bao Weiqing Wang Runze Li Xin Luo zhengwei fang Research Institute of Petroleum Exploration and Development Sinopec Shengli Oilfield CompanyShandongDongying257022China Postdoctor Scientific Research Stations Sinopec Shengli Oilfield CompanyShandongDongying257000China Petroleum Development Center of Shengli Oilfield ShandongDongying257022China Petroleum Development Center of Shengli Oilfield Beijing100007China Chongqing Gas Field of PetroChina Southwest Oil&Gasfield Company Chongqing400021China

The pore characteristics of shale reservoirs in the lower submember of Member 3 to upper submember of Member 4 of Shahejie Formation in Dongying sag are analyzed,influences of mineral content and organic matter content on porosity and pore size are also investigated,and through the diagenetic thermal simulation experiment,the main pore evolution is further discussed.The results show that the pore structure of shale reservoirs is complex,the micron-nanometer pores can storage liquid hydrocarbons,and the free-phase crude oil is mainly distributed in intergranular dissolution pores of calcite,recrystallized intergranular pores,intergranular shrinkage fractures of clay mineral which have large pore size.Framework minerals and organic matter content directly influence porosity and pore size of shale reservoirs,relationship between porosity and content of felsic mineral as well as content of organic matter content is linear and positive,while relationship between content of carbonated mineral is negative.At the buried depth from 2500 to 3500 m,concentration of organic acid from hydrocarbon generation and expulsion of organic matter,increasing range of pressure coefficient,are well corresponding to highporosity intervals;pore formation in shale oil reservoirs are almost controlled by diagenetic evolution of clay minerals;framework storage spaces formed by carbonate grain crystals as well as intergranular and intergranular dissolution pores of carbonate increases porosity of shale oil reservoirs;local increase of porosity at the depth of 3500e3800 m is mainly caused by coupling of hydrocarbon-generating overpressure and dissolution,and size,distribution and connectivity of pores are enhanced obviously.

关键词： Shale oil Pore and fracture Diagenesis Clay mineral transformation Dissolution Recrystallization Hydrocarbon-generation and acid expulsion Paleogene Dongying sag

ROS-responsive 18β-glycyrrhetic acid-conjugated polymeric nanoparticles mediate neuroprotection in ischemic stroke through HMGB1 inhibition and microglia polarization regulation

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Bioactive Materials 2023年第1期19卷 38-49页

作者： Lulu Jin Zhixin Zhu Liangjie Hong Zhefeng Qian fang Wang zhengwei Mao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China b The MOE Frontier Science Center for Brain Research and Brain-Machine Integration Zhejiang University School of Brain Science and Brain MedicineHangzhou310058China

Ischemic stroke is an acute and serious cerebral vascular disease,which greatly affects people’s health and brings huge economic burden to society.Microglia,as important innate immune components in central nervous system(CNS),are double-edged swords in the battle of nerve injury,considering their polarization between pro-inflammatory M1 or anti-inflammatory M2 phenotypes.High mobility group box 1(HMGB1)is one of the potent pro-inflammatory mediators that promotes the M1 polarization of microglia.18β-glycyrrhetinic acid(GA)is an effective intracellular inhibitor of HMGB1,but of poor water solubility and dose-dependent toxicity.To overcome the shortcomings of GA delivery and to improve the efficacy of cerebral ischemia therapy,herein,we designed reactive oxygen species(ROS)responsive polymer-drug conjugate nanoparticles(DGA)to manipulate microglia polarization by suppressing the translocation of nuclear HMGB1.DGA presented excellent therapeutic efficacy in stroke mice,as evidenced by the reduction of infarct volume,recovery of motor function,suppressed of M1 microglia activation and enhanced M2 activation,and induction of neurogenesis.Altogether,our work demonstrates a close association between HMGB1 and microglia polarization,suggesting potential strategies for coping with inflammatory microglia-related diseases.

关键词： HMGB1 Microglia M1/M2 phenotype Polymer-drug conjugates Drug delivery Ischemic stroke

Effect of manipulation on cartilage in rats with knee osteoarthritis based on the Rho-associated protein kinase/LIM kinase 1/Cofilin signaling pathways

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Journal of Traditional Chinese Medicine 2022年第2期42卷 194-199页

作者： GUO Xiao YANG Yunhao LIAO Dongmei PANG fang YANG Zhixue ZHU zhengwei LUO Ao TANG Chenglin College of Traditional Chinese Medicine Chongqing Medical UniversityChongqing 400010China Beibei Traditional Chinese Medicine Hospital Chongqing 400700China

OBJECTIVE:To investigate the effect of manipulation treatment on knee osteoarthritis rats and the effect on Rho-associated protein kinase(ROCK)/LIM-kinase1(LIMK1)/Cofilin signaling pathway.METHOD:Fifty Specific pathogen Free Sprague-Dawley rats were randomly divided into five groups(n=8 each):blank group,model group,manipulation group,celecoxib group,and manipulation combined with celecoxib group(MC group).The osteoarthritis model was established by injecting 0.2 m L 4%papain into the articular disc of the rats.After successfully establishing the model,we treated the manipulation group with pushing manipulation using one-finger-meditation to the Neixiyan(EX-LE4),Waixiyan(EX-LE5),Xuehai(SP10),Liangqiu(ST34),and Zusanli(ST36)acupoints for 10 min each time.Also,the celecoxib group was gavaged with 24 mg·kg^(-1)·d^(-1 )celecoxib,while the MC group was treated using both of these two methods.After four weeks,the cartilage of the right femur was removed for hematoxylin-eosin staining of the cartilage tissue.The expressions of interleukin-1β(IL-1β)and tumor necrosis factor-α(TNF-α)in serum were observed using the enzyme-linked immunosorbent assay.Besides,we detected the expressions of ROCK,LIMK1,Phospho-LIM-kinase1(Phospho-LIMK1),Cofilin,and Phospho-Cofilin by Western blot.RESULTS:Compared to the model group,the manipulation group,celecoxib group,and MC group all exhibited superior results concerning pathological morphologic changes of cartilage,as observed by hematoxylin-eosin staining and calculated using the Mankin score.Besides,in contrast to the blank group,the model group exhibited elevated serum levels of IL-1βand TNF-α(P<0.01),while the expression of ROCK,LIMK1,Phospho-LIMK1,Cofilin,and Phospho-Cofilin in cartilage were all higher(P<0.01).Also,the serum levels of IL-1βand TNF-αin each treatment group were lower(P<0.01)than in the model group.Moreover,there were lower expressions of ROCK,LIMK1,Phospho-LIMK1,Cofilin,and Phospho-Cofilin in cartilage in the manipulation group and the MC group(P<0.01).Compared with t

关键词： osteoarthritis knee manipulation cytoskeletal proteins Rho-associated kinases LIM kinases actin depolymerizing factors signal transduction

大型LNG储罐三种高效自动化焊接工艺对比研究

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压力容器 2024年第1期41卷 25-32页

作者：房务农蒋军郭广飞刘孟德周杨汪正伟李雪梅合肥通用机械研究院有限公司合肥230031 盛虹炼化(连云港)有限公司江苏连云港222065 北京博清科技有限公司北京100176 中石化第四建设有限公司天津300270

我国建造储存绿色能源LNG用储罐单台已达27万m^(3),针对传统的SMAW焊接效率低、含有锰蒸汽和CO_(2)的烟尘等问题,采用热丝TIG,FCAW及MIG三种自动焊方法,进行了大量的试验研究,从而使LNG储罐的施焊环境大大改善,焊接效率及质量均大幅提... 详细信息

我国建造储存绿色能源LNG用储罐单台已达27万m^(3),针对传统的SMAW焊接效率低、含有锰蒸汽和CO_(2)的烟尘等问题,采用热丝TIG,FCAW及MIG三种自动焊方法,进行了大量的试验研究,从而使LNG储罐的施焊环境大大改善,焊接效率及质量均大幅提升。结果表明,自动焊焊缝表面成形均远好于SMAW;焊接效率为MIG最高;焊接接头低温冲击韧性为热丝TIG最优。目前三种自动焊对现场组装精度要求均高于SMAW,热丝TIG对组装精度要求最高,因此尚需进一步提升自动化水平,以便在工程中大量推广应用。

关键词： 9%Ni钢大型LNG储罐自动化焊接力学性能

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面向不同训练内容的训练环境快速切换方法

指挥信息系统与技术 2024年第1期15卷 35-39页

作者：方冰付建苏王政伟张民强中国电子科技集团公司第二十八研究所南京210023

训练环境中,传统的人工部署和配置切换方式效率低且易出错,不利于用户在不同训练对象和训练模式下对训练的灵活组织与应用。为满足当前训练需求,提出了一种面向不同训练内容的训练环境快速切换方法。首先,阐述了该方法的主要原理;然后,... 详细信息

训练环境中,传统的人工部署和配置切换方式效率低且易出错,不利于用户在不同训练对象和训练模式下对训练的灵活组织与应用。为满足当前训练需求,提出了一种面向不同训练内容的训练环境快速切换方法。首先,阐述了该方法的主要原理;然后,描述了训练科目编排优化、基于应用集群和容器调度的系统快速构建以及轻量级客户端集成3种关键技术;最后,给出了应用实例。应用实例表明,该方法实现了训练内容快速切换和训练资源动态重组,提升了训练效能。

关键词：训练环境切换时间矩阵特征矩阵

不同应变率下高强钢的拉伸行为及力学性能分析

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高压物理学报 2024年第3期38卷 37-48页

作者：洛绒邓珠刘潇如杨佳肖礼康郭亮魏占涛周章洋易早刘艺房雷鸣熊政伟西南科技大学数理学院极端条件物质特性联合实验室四川绵阳621010 中国工程物理研究院流体物理研究所四川绵阳621999 西南应用磁学研究所四川绵阳621010 中国工程物理研究院核物理与化学研究所四川绵阳621999 四川省军民融合研究院四川绵阳621010

高强钢因强度高、塑性好、耐腐蚀性优异而得到广泛应用。然而,高强钢具有显著的应变率敏感性。为此,针对2种高强钢(Ultrafort 401和Ferrium S53钢),开展了不同应变率下(10^(-4)~10^(3) s^(-1))的拉伸试验,获得了屈服强度、抗拉强度、硬... 详细信息

高强钢因强度高、塑性好、耐腐蚀性优异而得到广泛应用。然而,高强钢具有显著的应变率敏感性。为此,针对2种高强钢(Ultrafort 401和Ferrium S53钢),开展了不同应变率下(10^(-4)~10^(3) s^(-1))的拉伸试验,获得了屈服强度、抗拉强度、硬化指数等性能参量,并深入分析了其随应变率变化的规律。不同应变率下,Ferrium S53钢的拉伸性能始终优于Ultrafort 401钢,但两者却表现出不同的变化趋势。随着应变率的增加,Ultrafort 401钢的屈服强度和抗拉强度均增大,而Ferrium S53钢的屈服强度增大,抗拉强度先减小后增大。结合微观结构表征发现,Ferrium S53钢所具有的较高的屈服强度与其初始晶粒尺寸更小有关,2种高强钢的抗拉强度随应变率增加所表现出的不同变化趋势则与应变硬化响应差异有关。随着应变率的升高,Ultrafort 401钢的韧窝尺寸增大,而Ferrium S53钢的韧窝尺寸先减小后增大,说明2种高强钢的应变硬化水平随着应变率升高而呈现不同的变化趋势。研究结果为高强钢在不同加载条件下的力学性能评估提供了科学依据,对高强钢的工程应用具有一定的指导意义。

关键词：高强钢拉伸性能应变率断口形貌屈服强度抗拉强度

Ni-catalyzed carbon–carbon bonds cleavage of mixed polyolefin plastics waste

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Journal of Energy Chemistry 2023年第10期85卷 562-569,I0014页

作者： Xiaoqin Si Jiali Chen zhengwei Wang Yue Hu Zhiwen Ren Rui Lu Lu Liu Jing Zhang Liwei Pan Rui Cai fang Lu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Research Center for Energy Strategy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina College of Environmental and Chemical Engineering Dalian UniversityDalian 116622LiaoningChina

The inert carbon–carbon(C–C) bonds cleavage is a main bottleneck in the chemical upcycling of recalcitrant polyolefin plastics waste. Here we develop an efficient strategy to catalyze the complete cleavage of C–C bonds in mixed polyolefin plastics over non-noble metal catalysts under mild conditions. The nickelbased catalyst involving Ni_(2)Al_(3) phase enables the direct transformation of mixed polyolefin plastics into natural gas, and the gas carbon yield reaches up to 89.6%. Reaction pathway investigation reveals that natural gas comes from the stepwise catalytic cleavage of C–C bonds in polypropylene, and the catalyst prefers catalytic cleavage of terminal C–C bond in the side-chain with the low energy barrier.Additionally, our developed approach is evaluated by the technical economic analysis for an economically competitive production process.

关键词： Ni-based catalyst Mixed polyolefin plastics C–C bonds cleavage