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Multi-Directional and Multiphase Tectonic Modification,and Hydrocarbon Differential Enrichment in the Middle-Upper Yangtze Region

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Journal of Earth Science 2022年第5期33卷 1246-1259页

作者： Zhiliang He shuangjian li Yingqiang li Jian Gao China Petroleum&Chemical Corporation Beijing100027China School of Earth and Space Sciences Peking UniversityBeijing100091China SINOPEC Petroleum Exploration and Production Research Institute Beijing102206China SINOPEC Key Laboratory of Geology and Resources in Deep Strata Beijing102206China

Based on the analysis of the deformation styles in different tectonic belts of the MiddleUpper Yangtze region,as well as the dissection of typical hydrocarbon reservoirs,this study determined the controlling effects of deformations on the hydrocarbon accumulations,obtaining the following *** Middle-Upper Yangtze region experienced significant deformations during the Late Indosinian(T_(2)–T_(3)),the Middle Yanshanian(J_(3)–K_(1)),and the Himalayan,and five styles of tectonic deformations mainly occurred,namely superimposed deep burial,uplift,compressional thrusting,multi-layer decollement,and secondary deep *** distribution of hydrocarbon reservoirs in the piedmont thrust belts is controlled by the concealed structures on the footwall of the deep *** gentle deformation area in central Sichuan experienced differential uplift,structural-lithologic hydrocarbon reservoirs were formed over a wide *** eastern Sichuan-western Hunan and Hubei deformation area experienced Jura Mountains-type multi-layer detachment,compressional thrusting,and *** relatively weakly folded and uplifted areas,conventional structural-lithologic hydrocarbon reservoirs have undergone adjustment and re-accumulation,and the shale gas resources are well *** the strongly deformed areas,conventional hydrocarbon reservoirs were destroyed,while unconventional hydrocarbon reservoirs have been partially *** marine strata in the Jianghan Basin experienced compression,thrusting,and denudation in the early stage and secondary deep burial in the late ***,the unconventional gas resources have been partially preserved in these *** hydrocarbon generation become favorable for conventional hydrocarbon accumulations in the marine strata.

关键词： multi-directional and multiphase tectonic modification tectonic deformation style differential hydrocarbon enrichment Middle-Upper Yangtze region Sichuan Basin Jianghan Basin petroleum geology

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Quartz Cementation in the Lower Paleozoic Shales,Middle Yangtze Region,South China:Implications for Shale Reservoir Properties

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Journal of Earth Science 2024年第6期35卷 1918-1933页

作者： Tian Dong Jian Gao shuangjian li Chuan Wang State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Efficient Development Beijing102206China SINOPEC Key Laboratory of Geology and Resources in Deep Stratum Beijing10220China School of Earth Resources China University of GeosciencesWuhan430074China

As one of the most important constitutes of shales/mudstones,quartz has received increasing interests in the last decades,because productive shale gas successions are generally rich in quartz *** study critically documents quartz types,silica source for quartz cementation and effect of quartz cementation on reservoir quality in the Lower Paleozoic shales,Middle Yangtze region,South China,including the Lower Cambrian Niutitang Formation and the Upper Ordovician-Lower Silurian Wufeng-Longmaxi *** results suggest that high-resolution scanning electron microscopy combined with cathodoluminescene techniques are necessary for identifying quartz types in *** of high-resolution imaging technique and detailed geochemical analysis are able to document silica source for quartz cementation and silica diagenetic *** types of quartz can be identified in the Paleozoic shales,primarily including detrital quartz silt,siliceous skeletons,quartz overgrowth,microcrystalline quartz(matrix-dispersed microquartz and aggregated microquartz),silica nanospheres and fracture-filling quartz *** of siliceous skeletons provides the principal silica sources for authigenic quartz formation in the Paleozoic *** quartz has dual effects on porosity *** overgrowth definitely occupies interparticle pores and possibly squeeze spaces,whereas aggregated microquartz can form rigid framework that is favorable for generating and preserving intercrystalline pores and organic pores.

关键词： shale gas quartz shale reservoir properties Paleozoic shales Middle Yangtze region

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In-situ preparation of robust self-lubricating composite coating from thermally sprayed ceramic template

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Journal of Advanced Ceramics 2023年第2期12卷 357-372页

作者： Zhichao WU shuangjian li Xiujuan FAN Florian VOGEL Jie MAO Xiaohui TU Institute of Advanced Wear&Corrosion Resistant and Functional Materials Jinan UniversityGuangzhou 510632China Institute of New Materials Guangdong Academy of SciencesNational Engineering Laboratory of Modern Materials Surface Engineering TechnologyGuangzhou 510650China

The self-lubricating ceramic coatings that can control friction and wear have attracted researchers’widespread ***,the poor interfacial bonding between lubricants and ceramics and the deterioration of mechanical properties due to a tribological design limit their practical ***,a robust self-lubricating coating was fabricated by an in-situ synthesis of MoS_(2)/C within inherent defects of thermally sprayed yttria-stabilized zirconia(YSZ)*** edge-pinning by noncoherent endows hybrid coatings with excellent interfacial strength,increasing their hardness(HV)and cohesive ***,owing to the formation of a well-covered robust lubricating film at a frictional interface,a coefficient of friction(COF)can be reduced by 79.6%to 0.15,and a specific wear rate(W)drops from 1.36×10^(−3) to 6.27×10^(−7) mm^(3)·N^(−1)·m^(−1).Combining outstanding mechanical properties and tribological performance,the hybrid coating exhibits great application potential in controlling friction and ***,this strategy of introducing the target materials into the inherent defects of the raw materials to improve the relevant properties opens new avenues for the design and preparation of composite materials.

关键词： self-lubricating ceramic coatings thermal spray in-situ synthesis MoS_(2)/C friction and wear mechanical properties

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Hydrocarbon accumulation conditions and exploration targets of the Sinian Dengying Formation in the Southeastern Sichuan Basin

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Energy Geoscience 2023年第3期4卷 80-89页

作者： shuangjian li Wei Sun Yingqiang li Jian Gao Zhiyuan liu Xiaokuan Feng Key Laboratory of Geology and Resources in Deep Stratum SINOPECBeijing102206China SINOPEC Petroleum Exploration&Production Research Institute Beijing102206China School of Energy Resources China University of GeosciencesBeijing100083China

No breakthrough has been made in petroleum exploration of the Sinian Dengying Formation in the southeastern Sichuan Basin as the major factors controlling the hydrocarbon accumulation of the Dengying Formation have not been well established,including the development period and distribution of the platform margin,the effectiveness of the source-reservoir combination and the reliability of the Cambrian pre-salt structural *** on the interpretation of seismic data and hydrocarbon-source correlation,the distribution of the platform margin of the Sinian Dengying Formation in the southeastern Sichuan Basin was ***,the gas source rocks of the Dengying Formation were clarified according to geochemical characteristics of fluid inclusions,and the pre-salt structures were further confirmed by seismic forward modeling and experiments of prestack depth *** showed that the sedimentary facies of the 4th member of Dengying Formation in the southeastern Sichuan Basin was platform margin of gentle slope *** platform margin reservoir of the Dengying Formation and the Lower Cambrian source rocks constitute a favorable source-reservoir *** carbon isotope characteristics of gas in fluid inclusions indicate that some of the oil/gas in the Dengying Formation were contributed by the Doushantuo Formation source *** the difference in seismic velocities between carbonate rocks and gypsum/salt beds may cause a reduction in the amplitude of pre-salt structures,the low-amplitude structures identified on current seismic profiles are underestimated instead of ***,the Sinian structural traps are confirmed to develop in the deep pre-salt sequences in the low-steep anticline belt,southeastern Sichuan *** the basis of the above new understanding,we propose two types of hydrocarbon migration modes for the Sinian Dengying Formation in southeastern Sichuan Basin,including lateral migration of hydrocarbons generated from the

关键词： Source-reservoir combination Fluid inclusion Play fairway Dengying formation Southeastern Sichuan Basin

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Chinese Economy under the New"Dual Circulation"Strategy:Challenges and Opportunities-A Summary of the Annual SUFE Macroeconomic Report(2020-2021)

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Frontiers of Economics in China-Selected Publications from Chinese Universities 2021年第1期16卷 1-29页

作者： Kevin X.D.Huang shuangjian li Guoqiang Tian Department of Economics Vanderbilt UniversityNashvilleTN 37235USA Institute for Advanced Research Shanghai University of Finance and EconomicsShanghai 200433China Department of Economics Texas A&M UniversityCollege StationTX 77843USA

Entering year 2020,the Chinese economy was struck by the COVID-19 *** unprecedented pandemic,entangled with the already elevated complexities in the nation's internal environment and external surroundings,aggravated its economic *** factors including severe education mismatch in China's labor force,its vanishing demographic dividend,the declined purchasing power of its middle-income groups,risen leverage ratio of households and enterprises,and soared local government debt reinforced to weaken China's domestic *** factors,especially uncertainty in the China-US relation in the face of the re-shaping global value chain,dragged world economic recovery and thus China's exports and *** summary report highlights some major challenges and opportunities faced by the nation under its new development strategy that stresses internal circulation of domestic economy aided by its interaction with the *** analyses based on IAR-CMM model provide a unified framework for addressing China's short-,medium-,and long-term issues in an internally coherent *** into year 2021,our benchmark projection reports an 8.4%annual real GDP growth *** scenario analyses and policy simulations are conducted to assess the impacts of potential downside risks and the corresponding policy options for ensuring implicit *** the lens of these analyses,we conclude that a refocus on effective management of internal demand,while deepening structural reforms on supply side and advancing orderly opening up,can help smooth the internal and external circulations of the Chinese economy to achieve high-quality development.

关键词： macroeconomic outlook alternative scenario analysis policy simulation systemic risk structural reforms opening up dual circulation

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Prototypes,modifications,and hydrocarbon enrichment variations in basins influenced by Tethyan evolution:A comparative analysis of the Persian Gulf Basin and the Sichuan Basin

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Science China Earth Sciences 2023年第12期66卷 2871-2897页

作者： Zhiliang HE Zhijun JIN shuangjian li Guoping BAI Xueyan LV Jinrui GUO Jian GAO Jinyin YIN Yingqiang li Dingye ZHENG China Petroleum&Chemical Corporation Beijing 100728China Institute of Energy Peking UniversityBejing 100871China SINOPEC Petroleum Exploration and Production Research Institute Beijing 102206China SINOPEC Key Laboratory of Geology and Resources in Deep Stratum Beijing 102206China

The hydrocarbon accumulation modes and differences in the Tethyan realm serve as a hot research topic in the petroleum geology community at home and *** the Persian Gulf Basin in the Middle East and the Sichuan Basin in China,situated on the southern and northern sides of the Tethyan realm,respectively,record the whole geological process of the opening and closure of the Prototethys,the Paleotethys,and the Neotethys sequentially,exhibiting anomalous hydrocarbon *** on the analysis of the plate tectonic evolution in the Tethyan realm,this study dissects the structures and hydrocarbon accumulation conditions of both *** by a systematic comparative analysis of the factors controlling hydrocarbon enrichment in the process of plate breakup and convergence in the Tethyan realm,this study proposes petroleum exploration targets in the *** results are as follows:(1)Since the Meso-Neoproterozoic,the Persian Gulf Basin and the Sichuan Basin have undergone similar tectonic evolution in the early stage but different in the late *** the influence of the formation and evolution of the Prototethys,Paleotethys,and Neotethys oceans,both basins experienced multi-stage development and modification,forming two major extension-convergence ***,both basins are characterized by the vertical orderly superimposition of various basin prototypes in the order of rift-intracratonic basin(passive continental margin)-foreland.(2)The fact that the Tethyan realm was long located at medium-low latitudes and the local anoxic environment formed in the process of plate breakup and convergence played a vital role in the formation of extensive source *** source rocks are predominantly distributed in underfilled rifts and deep depressions that were connected to the ocean in the unidirectional continental breakup process;basin-slopes and intra-shelf basins on passive continental margins;basinal lows within intracratonic basins,and underfill

关键词： Tethyan realm Unidirectional breakup and convergence Basin prototype Structural modification Hydrocarbon enrichment Exploration target Persian Gulf Basin Sichuan Basin

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Extensional tectonics and North China Craton destruction:Insights from the magnetic susceptibility anisotropy(AMS)of granite and metamorphic core complex

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Science China Earth Sciences 2021年第9期64卷 1557-1589页

作者： Wei liN Jipei ZENG lingtong MENG Huabiao QIU Wei WEI Zhiheng REN Yang CHU shuangjian li Chao SONG Qincheng WANG State Key Laboratory of lithospheric Evolution Institute of Geology and GeophysicsInnovation Academy for Earth ScienceChinese Academy of SciencesBeijing100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing100049China Sinopec Petroleum Exploration and Production Research Institute Beijing100083China SinoProbe Center Chinese Academy of Geological SciencesBeijing100037China

The craton is a long-lived stable geologic unit on the Earth’s ***,since the Mesozoic,the North China Craton(NCC)experienced large-scale lithospheric removal,the fundamental change of physical and chemical characteristics of the lithospheric mantle,widely distributed crustal deformation,and extensive *** complex evolution contrary to other cratons is called the NCC *** magmatism in the eastern NCC is an important response to the lithospheric removal at depth and crustal deformation on the *** plutons emplace under a tectonic context and therefore record the information of the tectonics;especially,the anisotropy magnetic susceptibility(AMS)pattern of the pluton was acquired with the influence of regional *** the past fifteen years,about 22 plutons intruding during the different periods from the Late Triassic to the late stage of the Early Cretaceous have been studied with *** emplacement mechanisms of plutons and the contemporary tectonic setting were discussed to constrain their relationship with the NCC destruction in different stages of *** a result,the Late Triassic,Early Jurassic,and Late Jurassic plutons exhibit consistent N(E)-S(W)trending magnetic *** early stage of Early Cretaceous plutons display NW-SE trending magnetic lineations,while the late stage of Early Cretaceous plutons show magnetic lineations with various *** with previous studies,it is concluded that the emplacements of the plutons intruding in these three stages were controlled by weak N(E)-S(W)trending extension,regional NW-SE trending extension,and weak extension in the shallow crustal level,*** transformation of regional extension from the N(E)-S(W)to the NW-SE direction was accompanied by a strain-increasing *** extensional tectonics in the eastern NCC was interpreted to represent the interaction between Mongol-Okhotsk belt,PaleoPacific plate,and eastern Eurasian continent

关键词： Mesozoic granite Anisotropy of magnetic susceptibility(AMS)of granite Eastern NCC Extensional tectonics NCC destruction

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混合型有源滤波器接入LCC-HVDC后的谐振分析及抑制方法

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高电压技术 2021年第7期47卷 2480-2488页

作者：李双健贾秀芳新能源电力系统国家重点实验室(华北电力大学) 北京102206

混合型有源滤波器(HAPF)为LCC-HVDC系统的交流侧滤波提供了一种新型的主动滤波方案,但HAPF接入LCC-HVDC后的并网系统存在较大的谐振风险。针对上述问题,首先建立了HAPF的等效阻抗模型,利用阻抗分析法定量分析了HAPF并网系统稳定性与控... 详细信息

混合型有源滤波器(HAPF)为LCC-HVDC系统的交流侧滤波提供了一种新型的主动滤波方案,但HAPF接入LCC-HVDC后的并网系统存在较大的谐振风险。针对上述问题,首先建立了HAPF的等效阻抗模型,利用阻抗分析法定量分析了HAPF并网系统稳定性与控制延时的大小关系,指出系统稳定性会随着控制延时的增大而降低。在此基础上,提出了基于HAPF离散状态空间模型的谐振抑制方法,通过补偿控制延时来实现谐振抑制,同时采用状态观测器来预测状态变量减少了传感器的数量。最后,利用PSCAD/EMTDC完成仿真验证。结果表明,HAPF具有良好的滤波效果,所提谐振抑制方法能够提高HAPF并网系统的稳定性。

关键词：电网换相换流器高压直流输电混合型有源滤波器控制延时离散状态空间模型状态观测器谐振

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湘鄂西—渝东褶皱带多重滑脱构造变形特征与构造模型

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地质科学 2020年第3期55卷 894-908页

作者：李英强何登发李双建中国石化石油勘探开发研究院北京100083 中国地质大学(北京)能源学院北京100083

湘鄂西—渝东褶皱带为多层系、多类型天然气大型聚集区,揭示其结构与成因将为拓展该区勘探新领域提供重要依据,为其它陆内强构造变形区的油气评价提供重要参考。本文利用两条拼接的跨研究区的地震反射剖面,以断层相关褶皱几何学、运动... 详细信息

湘鄂西—渝东褶皱带为多层系、多类型天然气大型聚集区,揭示其结构与成因将为拓展该区勘探新领域提供重要依据,为其它陆内强构造变形区的油气评价提供重要参考。本文利用两条拼接的跨研究区的地震反射剖面,以断层相关褶皱几何学、运动学分析方法为指导,对湘鄂西—渝东褶皱带进行精细构造解析。研究结果表明,湘鄂西—渝东褶皱带构造变形主要与4套区域滑脱层有关,具有多层次拆离、多级别滑脱、多方向冲断及多样式组合的特征。纵向上由深及浅依次以低幅度构造、双重构造和冲褶构造为主要特征,空间上自南东向北西总体为由基底滑脱向盖层滑脱、由单层滑脱向多层滑脱的陆内递进式变形。湘鄂西—渝东地区存在多套“源—储—盖”组合,基于多重滑脱构造变形系统及“相对稳定”保存单元概念,认为未来常规天然气勘探可重点关注寒武系盐下领域,非常规页岩气需继续加强对寒武系、志留系、二叠系构造弱变形区的评价。

关键词：滑脱层多重滑脱构造特征陆内变形湘鄂西—渝东

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构造变形过程中盖层封闭性研究

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地质科学 2011年第1期46卷 226-232页

作者：周雁李双建范明中国石化石油勘探开发研究院北京100083

研究了埋藏—成岩—抬升变形过程中盖层封闭性的演化特点,开展了构造变形过程中盖层破裂实验。认为泥岩在高演化阶段封闭性变差并不具有普遍性,在深埋条件下和构造稳定区,高演化泥岩仍可具有良好的封闭性;构造抬升是盖层封闭性发生破坏... 详细信息

研究了埋藏—成岩—抬升变形过程中盖层封闭性的演化特点,开展了构造变形过程中盖层破裂实验。认为泥岩在高演化阶段封闭性变差并不具有普遍性,在深埋条件下和构造稳定区,高演化泥岩仍可具有良好的封闭性;构造抬升是盖层封闭性发生破坏的主要因素;力学实验表明,膏盐岩盖层在极小的埋深(1000m左右)下就有很强的塑性,其极限强度很低,应变很大,是优质盖层;泥岩盖层在浅埋藏条件下,容易产生破裂,但在深埋条件下(围压超过50MPa),泥岩表现出塑性流变,仍然具有较好的封闭条件;泥灰岩破裂强度随着埋深的变化不明显,始终表现为比较强的脆性,高压下容易产生破裂。

关键词：盖层保存条件构造变形动态演化

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