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Petroleum Research 2020年第3期5卷 244-253页

作者： Yanqing Huang zhongqun liu Pengwei Li Junlong liu Changzhen Liao Shilin Xu Sinopec Petroleum Exploration and Development Research Institute Beijing100083China

In the Xinchang area in western Sichuan Basin,a total of 121.12 billion cubic meters of proved reserves of natural gas are discovered in Member 2 of Xujiahe Formation,but only 7.739 billion cubic meters of proved reserves of natural gas are *** main reason is that sandstones in Member 2 of Xujiahe Formation in the Xinchang area are generally tight,with strong heterogeneity,only intervals with relatively good physical properties have a certain production capacity;therefore,it is very necessary and important to evaluate effective reservoirs in Member 2 of Xujiahe *** analysis of cores,with consideration of color,sedimentary texture and grain size,lithofacies of Member 2 of Xujiahe Formation in the Xinchang area can be divided into 12 *** to data of physical properties and thin section analysis,it can be concluded that the favorable lithofacies in the upper submember of Member 2 of Xujiahe Formation are the massive medium-coarse sandstone,the medium-coarse sandstone with cross bedding,and the medium-coarse sandstone with carbonaceous *** the basis of electrical characteristics,well-logging interpretation standards for favorable lithofacies are established,in addition,favorable lithofacies and effective reservoir in the Xinchang area are determined,and distribution of favorable lithofacies(effective reservoir)is identified,which lay a solid foundation for next deployment of appraisal well and development of effective reserves.

关键词： Medium-coarse sandstone Lithofacies Effective reservoir Member 2 of xujiahe formation Xinchang area Sichuan

Genetic mechanisms of high-quality tight siliciclastic reservoirs:A case study from the Upper Triassic Xujiahe Formation in the Yuanba area,Sichuan Basin,China

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Energy Geoscience 2024年第3期5卷 151-162页

作者： Ai Wang Junlong liu zhongqun liu Kaihua Xiao Yanqing Huang Lingxiao Fan Jitong Li Petroleum Exploration and Production Research Institute SINOPECBeijing100083China

This study analyzed the petrological characteristics,diagenesis,pore types,and physical properties of the tight coarse-grained siliciclastic sequences in the third member of the Upper Triassic Xujiahe Formation(also referred to as the Xu-3 Member)in the western Yuanba area in the northeastern Sichuan Basin,China,based on the results of 242.61-m-long core description,292 thin-section observations,scanning electron microscopy(SEM),and 292 physical property *** types and genetic mechanisms of high-quality tight coarse-grained siliciclastic reservoirs in this member was determined *** research objective is to guide the exploration and development of the tight coarse-grained siliciclastic sequences in the Xu-3 *** results of this study are as *** types of high-quality reservoirs are developed in the coarse-grained siliciclastic sequences of the Xu-3 Member,namely the fractured fine-grained sandy conglomerate type and porous medium-grained calcarenaceous sandstone *** energy in the sedimentary environment is the key factor controlling the formation of high-quality *** high-quality reservoirs are developed mainly in the transitional zone with moderately high hydrodynamic energy between delta-plain braided channels and delta-front subaqueous distributary *** dolomitic debris(gravel)content is the main factor affecting the reservoirs’physical *** micritic algal debris and sandy debris in the dolomitic debris(or gravels)tend to recrystallize during burial,forming intercrystalline pores *** the medium-grained calcarenaceous sandstones,intercrystalline pores in the dolomitic debris are formed at the early diagenetic stage,and a pore system consisting of structural fractures connecting intergranular pores,intergranular dissolution pores,and kaolinite intergranular micropores is developed at the late stage of *** formation of intercrystalline pores in dolomite gravels and gravel-edge f

关键词： Tight siliciclastic rock High-quality reservoir Genetic mechanism Xujiahe Formation Northeast Sichuan

Characterization of favorable lithofacies in tight sandstone reservoirs and its significance for gas exploration and exploitation: A case study of the 2nd Member of Triassic Xujiahe Formation in the Xinchang area, Sichuan Basin

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Petroleum Exploration and Development 2020年第6期47卷 1194-1205页

作者： liu Junlong liu zhongqun XIAO Kaihua HUANG Yanqing JIN Wujun Sinopec Exploration&Production Research Institute Beijing 100083China

By using core,logging curves,and experiment data,favorable lithofacies types in the 2 nd Member of Triassic Xujiahe Formation in the Xinchang area,Sichuan Basin were classified,standard of the favorable lithofacies was established,planar distribution regularities of the favorable lithofacies were identified,and forming mechanisms of the favorable lithofacies and their control effect on production were examined.(1)The 2 nd Member of Xujiahe Formation has twelve types of lithofacies,among which multiple layer medium-coarse grain sandstone lithofacies,parallel bedding medium-coarse grain sandstone lithofacies,massive bedding medium-coarse grain sandstone lithofacies,inclined bedding medium-coarse grain sandstone lithofacies,and charcoal-bearing medium-coarse grain sandstone lithofacies with better physical properties and higher gas content are favorable lithofacies;they feature low gamma,low neutron porosity,low resistivity,and high acoustic travel time on logging curves.(2)The sedimentary process controls spatial distribution of sand bodies which are the material basis of the favorable lithofacies;post diagenetic fluids would differentially reconstruct the favorable lithofacies;tectonic activities and abnormal formation pressure made strata slide along the weakness plane,giving rise to fractures in different types of rocks,which can enhance the reservoir permeability significantly.(3)The development degree of favorable lithofacies is a major factor affecting stable production of gas well.

关键词： tight sandstone reservoir favorable lithofacies reservoir characterization Triassic Xujiahe Formation Xinchang area Sichuan Basin

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Synthesis and High Electrocatalytic Performance of Hexagram Shaped Gold Particles Having an Open Surface Structure with Kinks

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Nano Research 2011年第6期4卷 612-622页

作者： Qingning Jiang Zhiyuan Jiang Lei Zhang Haixin Lin Ning Yang Huan Li Deyu liu Zhaoxiong Xie zhongqun Tian State Key Laboratory for Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China

Hexagram shaped gold particles and their analogues enclosed by high index facets with kinks have been successfully synthesized by reducing HAuCl4 with ascorbic acid （AA） in the presence of poly（diallyldimethylammonium chloride） at room temperature. By using electron microscopy, the surfaces of the hexagram shaped Au particle were found to be {541} planes, which contain high-density steps and kinks. In addition, it was found that hexagonal shield-like and other kind of particles present in the product were analogues of the hexagram shaped Au particles structure, in that they had the same surface structure. In order to confirm the surface structure of all the prepared particles, surface structure sensitive underpotential deposition of Pb was carried out, and the cyclic voltammetric profile was in accordance with the proposed {541} surface. Finally, structure-property relationships of the Au hexagrams were experimentally analyzed by employing the electrocatalytic oxidation of AA as a probe reaction. The electrocatalytic reactions of gold cubes with low-index {100} facets and gold trioctahedra with {221} facets were studied as references. The experimental results showed that the hexagram shaped Au particles and their analogues with exposed {541} facets have the highest catalytic activity among the three kinds of gold particles, owing to the high density of kink atoms. This study should motivate us to further explore methods for the preparation of other well-defined polyhedral metal nanocrystals enclosed by high index surfaces.

关键词： Hexagram shaped gold particles surface structure high index facets with kinks structure-property relationship electrocatalysis crystal growth

General synthesis of high-performing magneto-conjugated polymer core-shell nanoparticles for multifunctional theranostics

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Nano Research 2017年第2期10卷 704-717页

作者： Hao Yan Lingyun Zhao Wenting Shang zhongqun liu Wensheng Xie Cai Qiang Zhiyuan Xiong Ranran Zhang Baohua Li Xiaodan Sun Feiyu Kang State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China Key Laboratory of Advanced Materials of Ministry of Education of China Tsinghua University Beijing 100084 China Engineering Laboratory for Functionalized Carbon Materials Graduate School at Shenzhen Tsinghua University Shenzhen 518055 China Key Laboratory of Molecular Imaging Institute of Automation Chinese Academy of Sciences Beijing 100190 China

Recently, increasing attention has been paid to magneto-conjugated polymer core-shell nanoparticles （NPs） as theranostic platforms. However, the utilization of surfactants and extra oxidizing agents with potential toxicity in synthesis, the lack of general methods for the controlled synthesis of various kinds of magnetic NP （MNP）@conjugated polymer NPs, and the difficulty of obtaining balanced magneto-optical properties have greatly limited the applications of magneto-conjugated polymers in theranostics. We developed an in situ surface polymerization method free of extra surfactants and oxidizing agents to synthesize MNP@polypyrrole （PPy） NPs with balanced, prominent magneto-optical properties. MNP@PPy NPs with an adjustable size, different shapes, and a controlled shell thickness were obtained using this method. The method was extended to synthesize other MNP-conjugated polymer core-shell NPs, such as MNP@polyaniline and MNP@poly（3,4-ethylenedioxythiophene）：poly（4- styrenesulfonate）（PEDOT：PSS）. We discuss the formation mechanism of the proposed method according to our experimental results. Finally, using the optical and magnetic properties of the obtained MNP@PEDOT：PSS NPs, in vivo multimodal imaging-guided hyperthermia was induced in mice, achieving an excellent tumor-ablation therapeutic effect. Our work is beneficial for extending the application of MNP-conjugated polymer core-shell NPs in the biomedical field.

关键词： iron oxide polypyrrole photothermal magnetic hyperthermal poly(3 4-ethylenedioxythiophene):poly(4-styrenesulfonate)(PEDOT:PSS)

鄂尔多斯盆地大牛地致密砂岩气田水平井开发气藏工程优化技术

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石油与天然气地质 2016年第2期37卷 261-266页

作者：刘忠群中国石化华北油气分公司勘探开发研究院河南郑州450006

大牛地气田属致密砂岩气田,剩余未动用储量品位差、有效厚度薄、纵向叠合程度低,采用水平井开发效果较好,但国内没有成熟的开发技术和经验。因此,优化研究水平井开发技术政策,完善气藏工程配套技术显得尤为重要。为此,基于经验公式、动... 详细信息

大牛地气田属致密砂岩气田,剩余未动用储量品位差、有效厚度薄、纵向叠合程度低,采用水平井开发效果较好,但国内没有成熟的开发技术和经验。因此,优化研究水平井开发技术政策,完善气藏工程配套技术显得尤为重要。为此,基于经验公式、动态分析、数值模拟、经济评价等方法,对水平井整体开发动用条件下的产能评价、单井设计、井网井距等开发技术政策进行了优化研究,明确了层系划分原则,确定了多种产能评价方法,明确了气井配产比例为无阻流量的1/5-1/3,水平段长1 000-1 200 m,轨迹应垂直于最大主应力方向并尽量位于储层中部,压裂缝设计应参照定量计算模型,井网采用排状交错井网,井距800-1 200 m,废弃地层压力8 MPa,采收率40%。形成的气藏工程优化技术,已应用于大牛地气田水平井整体开发方案中,为方案成功实施提供了技术保障。

关键词：开发技术政策低渗透气藏工程水平井大牛地气田鄂尔多斯盆地

Impact of Modal Parameters on Milling Process Chatter Stability Lobes

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武汉理工大学学报 2006年第S1期28卷 190-195页

作者： LI zhongqun,liu Qiang (School of Mechanical Engineering and Automation,BeiHang University,Beijing 100083,China) School of Mechanical Engineering and Automation BeiHang UniversityBeijing 100083China

Modals of the machine/tool and machine/part system are the principal factors affecting the stability of a milling process. Based on the modeling of chatter stability of milling process,the influence of modal parameters on chatter stability lobes independently or jointly has been analyzed by simulation. Peak-to-valley specific value,lobe coefficient and the corresponding calculation formula have been put forward. General laws and steps of modal simplification for multimodality system have been summarized.

关键词： milling process chatter stability lobes dynamic stiffness modal parameter

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泾河油田裂缝型致密油藏地质特征及开发对策

西南石油大学学报（自然科学版） 2019年第2期41卷 23-32页

作者：刘忠群中国石油化工股份有限公司石油勘探开发研究院北京海淀100083

在阐述裂缝致密油藏地质及开发动态特征的基础上,明确了开发难点,并提出开发对策,可为同类型油田开发提供借鉴。泾河油田储层致密、孔喉细小、连通性差、可动流体百分数低,发育构造和水平层理裂缝,裂缝是高产主控因素。储层可划分为4类... 详细信息

在阐述裂缝致密油藏地质及开发动态特征的基础上,明确了开发难点,并提出开发对策,可为同类型油田开发提供借鉴。泾河油田储层致密、孔喉细小、连通性差、可动流体百分数低,发育构造和水平层理裂缝,裂缝是高产主控因素。储层可划分为4类,Ⅰ、Ⅱ类为"甜点",非均质性强、厚度薄、孔隙度低、含油饱和度低、储量丰度低;油井产量低、产能差异大、产量递减快、累产低、采收率低,开发难度大。开发难点主要有"甜点"精细描述难度大、提高井控储量难度大、提高采收率难度大、能量补充难度大等。针对开发难点,提出了"非连续"性井位部署、水平井分段压裂、滚动建产、优化油藏工程参数、能量补充先导试验、实施低成本战略等6项开发对策。

关键词：致密油藏裂缝地质特征开发对策泾河油田

Geological characteristics and models of fault-foldfracture body in deep tight sandstone of the second member of Upper Triassic Xujiahe Formation in Xinchang structural belt of Sichuan Basin,SW China

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Petroleum Exploration and Development 2023年第3期50卷 603-614页

作者： liu Junlong liu zhongqun liu Zhenfeng liu Yali SHEN Baojian XIAO Kaihua BI Youyi WANG Xiaowen WANG Ail FAN Lingxiao LI Jitongl Sinopec Petroleum Exploration&Production Research Institute Beijing 100083China Sinopec Southwest Oil&Gas Company Chengdu 610081China

In the second member of the Upper Triassic Xujiahe Formation(T_(3)x_(2))in the Xinchang area,western Sichuan Basin,only a low percent of reserves has been recovered,and the geological model of gas reservoir sweet spot remains *** on a large number of core,field outcrop,test and logging-seismic data,the T_(3)x_(2) gas reservoir in the Xinchang area is *** concept of fault-fold-fracture body(FFFB)is proposed,and its types are *** main factors controlling fracture development are identified,and the geological models of FFFB are *** refers to faults,folds and associated fractures *** to the characteristics and genesis,FFFBs can be divided into three types:fault-fracture body,fold-fracture body,and fault-fold *** the hanging wall of the fault,the closer to the fault,the more developed the effective fractures;the greater the fold amplitude and the closer to the fold hinge plane,the more developed the effective *** types of geological models of FFFB are established:fault-fold fracture,and matrix storage and *** former can be divided into two subtypes:network fracture,and single structural fracture,and the later can be divided into three subtypes:bedding fracture,low permeability pore,and extremely low permeability *** process for evaluating favorable FFFB zones was formed to define favorable development targets and support the well deployment for purpose of high *** study results provide a reference for the exploration and development of deep tight sandstone oil and gas reservoirs in China.

关键词： fault-fold-fracture body fracture control factor genetic characteristics geological model deep layer tight sandstone Xinchang structural belt Upper Triassic Xujiahe Formation Sichuan Basin

Development of methods for detecting the fate of mesenchymal stem cells regulated by bone bioactive materials

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Bioactive Materials 2021年第3期6卷 613-626页

作者： Jiang Le liu zhongqun Wang Zhaoyan Su Yijun Wang Yingjin Wei Yaojie Jiang Yanan Jia Zhanrong Ma Chunyang Gang Fangli Xu Nan Zhao Lingyun Wang Xiumei Wu Qiong Lu Xiong Sun Xiaodan State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084People's Republic of China Key Laboratory of Advanced Materials of Ministry of Education of China School of Materials Science and EngineeringTsinghua UniversityBeijing100084People's Republic of China Key Lab of Advanced Technologies of Materials of Ministry of Education School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu610031People's Republic of China MOE Key Laboratory of Bioinformatics Tsinghua UniversityBeijing100084People's Republic of China Center for Synthetic and Systems Biology Tsinghua UniversityBeijing100084People's Republic of China School of Life Sciences Tsinghua UniversityBeijing100084People's Republic of China

The fate of mesenchymal stem cells(MSCs)is regulated by biological,physical and chemical *** in biotechnology and materials science promoted the occurrence of bioactive materials which can provide physical and chemical signals for MSCs to regulate their *** order to design and synthesize materials that can precisely regulate the fate of MSCs,the relationship between the properties of materials and the fate of mesenchymal stem cells need to be clarified,in which the detection of the fate of mesenchymal stem cells plays an important *** the past 30 years,a series of detection technologies have been developed to detect the fate of MSCs regulated by bioactive materials,among which high-throughput technology has shown great advantages due to its ability to detect large amounts of data at one *** this review,the latest research progresses of detecting the fate of MSCs regulated by bone bioactive materials(BBMs)are systematically reviewed from traditional technology to high-throughput technology which is emphasized ***,current problems and the future development direction of detection technologies of the MSCs fate regulated by BBMs are *** aim of this review is to provide a detection technical framework for researchers to establish the relationship between the properties of BMMs and the fate of MSCs,so as to help researchers to design and synthesize BBMs better which can precisely regulate the fate of MSCs.

关键词： Bone bioactive materials High-throughput technology Transcriptomics Single cell RNA-seq Proteomics