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Seismic analysis of the Xiluodu reservoir area and insights into the geometry of seismogenic faults

Earthquake Science 2022年第5期35卷 371-386页

作者： Hongfu Lei Qincai Wang Cuiping Zhao Ce Zhao jinchuan zhang Jun Li China Three Gorges Construction Engineering(Group)Co. Ltd.Chengdu 610000China Institute of Earthquake Forecasting China Earthquake AdministrationBeijing 100036China Jiangsu Earthquake Agency Nanjing 210014China The Second Monitoring and Application Center China Earthquake AdministrationXi’an 710054China

The Xiluodu(XLD)reservoir is the second largest reservoir in China and the largest in the Jinsha River *** occurrence of two M>5 earthquakes after reservoir impoundment has aroused great interest among seismologists and plant *** comprehensively analyzed the seismicity of the XLD reservoir area using precise earthquake relocation results and focal mechanism solutions and found that the seismicity of this area was weak before *** impoundment,earthquake activity increased *** occurrence of M≥3.5 earthquakes within five years of impoundment also appear to be closely related to rapid rises and falls in water level,though this correlation weakened after five years because earthquake activity was far from the reservoir *** in the XLD reservoir area are clustered;near the dam(Area A),small faults are intermittently distributed along the river,while Area B is composed of multiple NW-trending left-lateral strikeslip faults and a thrust fault and Area C is composed of a NW-trending left-lateral strike-slip main fault and a nearly EWtrending right-lateral strike-slip minor *** geometries of the deep and the shallow parts of the NW-trending fault *** the action of the NW-trending background stress field,a series of NW-trending left-lateral strike-slip faults and NE-trending thrust faults in critical stress states were dislocated due to the stress caused by reservoir *** two largest earthquakes in the XLD reservoir area were tectonic earthquakes that were directly triggered by impoundment.

关键词： Xiluodu reservoir area double-difference location focal mechanism solution fault geometry reservoir impoundment

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Pore-scale mechanisms and characterization of light oil storage in shale nanopores:New method and insights

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Geoscience Frontiers 2022年第5期13卷 50-58页

作者： Wei Dang Haikuan Nie jinchuan zhang Xuan Tang Shu Jiang Xiaoliang Wei Yang Liu Fengqin Wang Pei Li Zhipeng Chen Shaanxi Key Laboratory of Petroleum Accumulation Geology Xi’an Shiyou UniversityXi’an 710065China School of Earth Sciences and Engineering Xi’an Shiyou UniversityXi’an 710065China Petroleum Exploration and Production Research Institute SINOPECBeijing 100083China School of Energy Resources China University of GeosciencesBeijing 100083China Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education China University of GeosciencesWuhan 430074China Exploration and Development Institute of Shengli Oil Field Company SINOPECDongying 257000China Key Laboratory of Strategy Evaluation for Shale Gas Ministry of Land and ResourcesChina University of GeosciencesBeijing 100083China

A new method is proposed to analyze the pore-scale mechanisms and characterization of light oil storage in shale nanopores,which is based on the Hydrocarbon Vapor Adsorption(HVA)and Pore Calculation Model(PCM).First,the basic principle of the HVA-PCM method is introduced,and the experimental/mathematical analysis processes are ***,the HVA-PCM method is applied to shale samples to analyze the mechanisms and characterization of light oil storage in shale *** results provide insights into the pore-scale oil storage mechanisms,oil storage structure,oil film thickness,oil distribution within different sized pores,and the oil storage ***,the advantages and limitations of the HVA-PCM method are discussed,and suggestions for further improvement are ***,the HVA-PCM method is a powerful tool for extracting quantitative information on the light oil storage in shale nanopores.

关键词： Shale oil Storage mechanisms Storage characterization Hydrocarbon vapor adsorption

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Robust, breathable, and chemical-resistant polytetrafluoroethylene (PTFE) films achieved by novel in-situ fibrillation strategy for highperformance triboelectric nanogenerators

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Nano Research 2024年第3期17卷 1942-1951页

作者： Jialong Chai Guilong Wang jinchuan Zhao Guizhen Wang Chao Wei Aimin zhang Guoqun Zhao Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061China Key Laboratory of Chinese Education Ministry for Tropical Biological Resources Hainan UniversityHaikou 570228China

In the era of advanced wearable electronic devices,the triboelectric nanogenerators(TENGs)as energy harvesting and self-powered sensing units hold great *** appropriate triboelectric material is the crucial factor to optimize the performance of TENG,while polytetrafluoroethylene(PTFE)stands out as a highly versatile option among the various *** this study,we present an ultrafine nanofibrous PTFE(NF-PTFE)films prepared by novel in-situ fibrillation strategy as the triboelectric material in TENG *** innovative processing methodology facilely addresses the dilemma between high porosity and fine pore size of traditional porous PTFE films,meanwhile achieves exceptional mechanical strength,hydrophobicity,air permeability,and chemical resistance of the *** the integration of nanofibrous PTFE films into contact-separation mode TENG and droplet-based TENG,these devices realize the peak electrical output of 131 V/10.8μA and 54 V/14μA with great durability,which surpass the performance of TENGs using traditional expanded PTFE ***,a smart glove capable of recognizing hand gestures is proposed,which demonstrates the versatility,flexibility,and practicality of this material for potential use in smart *** reported NF-PTFE film provides insights for the design of high-performance TENG device for advanced wearable electrical applications.

关键词： polytetrafluoroethylene(PTFE) nanofibrous film hydrophobic triboelectric nanogenerator self-powered sensor

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四川盆地昭通地区太阳区块页岩气压裂返排液地球化学特征——以Y105井区为例

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天然气地球科学 2024年第9期35卷 1699-1711页

作者：李林芝倪云燕姚立邈王飞隋建立张津川王圆董国梁王力赵桐陈建平董大忠四川农业大学环境学院四川成都611130 中国石油大学(北京)油气资源与工程全国重点实验室北京102249 中国石油勘探开发研究院北京100083 中国石油浙江油田浙江杭州311100 中国地震局地质研究所北京100029

近年来中国在四川盆地昭通示范区针对埋深700~2 000 m的中浅层页岩气开展了卓有成效的勘探与开发,但页岩气开发采用的水平井技术和大型水力压裂技术存在水环境污染风险,尤其是在中国南方碳酸盐岩分布区,地质条件复杂、生态环境脆弱,开... 详细信息

近年来中国在四川盆地昭通示范区针对埋深700~2 000 m的中浅层页岩气开展了卓有成效的勘探与开发,但页岩气开发采用的水平井技术和大型水力压裂技术存在水环境污染风险,尤其是在中国南方碳酸盐岩分布区,地质条件复杂、生态环境脆弱,开展水环境污染风险研究尤为重要。对四川盆地昭通地区太阳区块Y105井区垂深小于2 500 m的页岩气井的压裂返排液进行了微量元素、阴阳离子、锶同位素等组成的地球化学分析,并与威远、长宁和涪陵地区的页岩气压裂返排液进行了比较。研究结果表明,太阳区块浅层Y105井区页岩气压裂返排液具有以下3个特征:(1)返排液高含各种盐类、重金属等,K、Na、Ca、Mg等含量均值分别为153 mg/L、7 473 mg/L、162 mg/L、34 mg/L,Cl和Br含量均值分别为10 912 mg/L和52 mg/L,Li、B、Sr、Ba、Rb等含量均值分别为21.9 mg/L、14.3 mg/L、27.8 mg/L、37.4 mg/L、0.25 mg/L,不能直接排放。Br/Cl均值为0.002 1,与蒸发相海水相比具有相对富Ca贫Mg的特点,Sr、Ba、Rb等含量与Cl含量呈正相关关系,说明返排液为压裂注入液与地层束缚的卤水混合的产物,其高盐端具有蒸发相海水的特征,但又经历了水岩反应。(2)87Sr/86Sr值变化范围为0.716 5~0.717 2(均值为0.716 7),说明压裂注入液与具有高锶同位素比值的页岩地层之间有着强烈的水岩作用。与威远、长宁和涪陵页岩气田返排液相比,太阳区块返排液的87Sr/86Sr值较低,但又远高于地表水、杀菌剂等,是很好的鉴别指标。(3)返排液元素组成与页岩垂直埋深有着一定的相关性,如,Y105H3平台,当垂深从2 245.16 m增加至2 406.16 m,阴阳离子、微量元素等成分含量都有着不同程度的变化,并表现出一定的变化规律,这可能反映了温度、压力等因素的影响。

关键词：四川盆地返排液页岩气昭通地区太阳区块地球化学锶同位素

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Broad area quantum cascade lasers operating in pulsed mode above 100℃ at λ ～ 4.7 μm

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Journal of Semiconductors 2017年第7期38卷 74-77页

作者： Yue Zhao Fangliang Yan jinchuan zhang Fengqi Liu Ning Zhuo Junqi Liu Lijun Wang zhanguo Wang Key Laboratory of Semiconductor Materials Science Institute of Semiconductors Chinese Academy of Sciences Beijing100083 China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences Beijing 100049China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing 100083 China

We demonstrate a broad area（400 μm） high power quantum cascade laser（QCL）. A total peak power of 62 W operating at room temperature is achieved at λ~ 4.7 μm. The temperature dependence of the peak power characteristic is given in the experiment, and also the temperature of the active zone is simulated by a finite-elementmethod（FEM）. We find that the interface roughness of the active core has a great effect on the temperature of the active zone and can be enormously improved using the solid source molecular beam epitaxy（MBE） growth system.

关键词： high peak power quantum cascade laser interface roughness

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活蛹缫丝对家蚕综合经济性状的影响

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贵州农业科学 2024年第7期52卷 53-62页

作者：胡春梅张智勇粟思源刘俊凤张锦川肖文福刘彬斌四川省农业科学院蚕业研究所/特种经济动植物研究所四川南充637000

【目的】探明活蛹缫丝对家蚕杂交组合及其亲本的健康性、茧丝质量、品种特性等综合经济性状的影响,为家蚕新材料的创制、筛选和固定以及突破性新蚕品种的定向培育提供理论依据。【方法】2019—2022年,以亲本造A和兰B为试验材料,连续4代... 详细信息

【目的】探明活蛹缫丝对家蚕杂交组合及其亲本的健康性、茧丝质量、品种特性等综合经济性状的影响,为家蚕新材料的创制、筛选和固定以及突破性新蚕品种的定向培育提供理论依据。【方法】2019—2022年,以亲本造A和兰B为试验材料,连续4代对亲本进行活蛹缫丝试验并进行继代保育,同时随代制备杂交组合,以未进行活蛹缫丝的亲本和杂交组合为对照,调查龄期经过、四龄病小蚕数量、产茧量、全茧量、茧层量,观测茧形情况并分粒计数、缫丝茧个体重量和范围、切断、纇节、丝长、丝干重,调查母蛾产卵量、不良卵粒数及孵化情况。【结果】活蛹缫丝亲本(造A和兰B)饲育成绩中结茧率、虫蛹率和全茧量3项指标与对照差异显著(P<0.05),部分指标的提升与饲育季节相关。亲本的纇节与切断次数随活蛹缫丝不断深入而逐代明显减少,茧丝长度明显增长。活蛹缫丝导致亲本的产卵量减少,产附变差。产卵量变化在亲本间及亲本与对照间差异均显著(P<0.05)。杂交组合(造A×兰B)饲育指标中发育经过(五龄和全龄经过)、普茧率和结茧率与对照无显著差异,健蛹率较对照有一定增加,万头蚕产茧量较对照有不同程度减少;全茧量和茧层率因季节呈动态变化,总平均与对照基本持平;万头蚕产茧量和虫蛹率与对照差异显著(P<0.05)。杂交组合缫丝成绩中清洁和净度与对照无差别,上车茧率和解舒率随活蛹缫丝不断深入而逐代提高,茧丝长、茧丝纤度和万米吊糙呈动态变化,总平均与对照基本持平;茧丝长和解舒率2项指标与对照差异显著(P<0.05)。【结论】经活蛹缫丝处理亲本(造A和兰B)的纇节与切断次数随缫丝不断深入而逐代明显减少,茧丝长明显增长,普茧率和茧层率与对照基本持平。亲本结茧率和健蛹率较对照均有不同程度提高,结茧率造A和兰B春季分别提升3.69%和3.76%,秋季分别提升8.13%和1.70%;健蛹率造A和兰B春季分别提升4.55%和6.19%,秋季分别提升8.23%和0.98%。亲本经活蛹缫丝的杂交组合(造A×兰B)的普茧率、健蛹率、茧质成绩较对照均有不同程度提升,春季的普茧率、健蛹率、解舒率和丝长分别较对照提高3.73%、0.84%、3.00%和4.34%;秋季的普茧率与对照基本持平,而健蛹率、解舒率和丝长分别较对照提高0.67%、3.90%和1.62%。

关键词：家蚕活蛹缫丝结茧率健康性茧丝品种品种特性综合经济性状

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High powerλ~8.5μm quantum cascade laser grown by MOCVD operating continuous-wave up to 408 K

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Journal of Semiconductors 2021年第11期42卷 55-60页

作者： Teng Fei Shenqiang Zhai jinchuan zhang Ning Zhuo Junqi Liu Lijun Wang Shuman Liu Zhiwei Jia Kun Li Yongqiang Sun Kai Guo Fengqi Liu zhanguo Wang Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Robust quantum cascade laser(QCL)enduring high temperature continuous-wave(CW)operation is of critical importance for some *** report on the realization of lattice-matched InGaAs/InAlAs/InP QCL materials grown by metal-organic chemical vapor deposition(MOCVD).High interface quality structures designed for light emission at 8.5μm are achieved by optimizing and precise controlling of growth conditions.A CW output power of 1.04 W at 288 K was obtained from a 4 mm-long and 10μm-wide coated *** maximum wall-plug efficiency and threshold current density were 7.1%and 1.18 kA/cm2,*** device can operate in CW mode up to 408 K with an output power of 160 mW.

关键词： quantum cascade laser metal-organic chemical vapor deposition continuous-wave interface roughness

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Research on the Q-value, Site Response and Seismic Source Parameters in Jiangsu and Its Adjacent Areas

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Earthquake Research in China 2017年第2期31卷 213-224页

作者： Kang Qingqing Gu Qinping Miao Fajun zhang jinchuan Zhou Kangya Yang Chi Li Zhengkai Earthquake Administration of Jiangsu Province Nanjing 210014 China Institute of Geophysics China Earthquake Adninistration Beijing 100081 China

Based on 49 digital seismograms recorded by 73 seismic stations in the Jiangsu Telemetered Seismic Network,the paper uses Atkinson's method to calculate the inelastic attenuation coefficient of the Jiangsu area. We find that the frequency-dependent Q in the Jiangsu region is Q( f) = 272. 1·f^(0. 5575). We also use Moya's method to invert the 63 stations' site responses. The results show that the site responses of the 25 stations in Jiangsu are approximately 1 at a range between 1Hz and 20 Hz, which is consistent with their basements on rocks. The response curves of the site responses of the 14 underground stations are similar to each other. Their site responses show an amplification at low frequencies and minimization at high frequencies. The calculation of the Brune model on the waveform data of M_L≥2. 5 earthquakes from Jiangsu Digital Seismic Network between October 2010 and May 2015 in terms of seismic source parameters of 58 seismic waves shows that there are good correlations between seismic magnitude and other source parameters such as seismic moment, source radius and corner frequency, while the correlations between seismic magnitude and stress drop,and stress drop and source radius are not so good.

关键词： Jiangsu and its adjacent areas Q-value Site response Source parameters

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Room temperature continuous wave operation of quantum cascade laser atλ~9.4μm

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Journal of Semiconductors 2018年第3期39卷 34-37页

作者： Chuncai Hou Yue Zhao jinchuan zhang Shenqiang Zhai Ning Zhuo Junqi Liu Lijun Wang Shuman Liu Fengqi Liu zhanguo Wang Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing100083China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing 100083China

Continuous wave（CW） operation of long wave infrared（LWIR） quantum cascade lasers（QCLs） is achieved up to a temperature of 303 K. For room temperature CW operation, the wafer with 35 stages was processed into buried heterostructure lasers. For a 2-mm-long and 10-μm-wide laser with high-reflectivity（HR） coating on the rear facet, CW output power of 45 m W at 283 K and 9 m W at 303 K is obtained. The lasing wavelength is around 9.4 μm locating in the LWIR spectrum range.

关键词： quantum cascade laser long wave infrared double-phonon resonance

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深盆气成藏阶段及其压力结构

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天然气工业 2002年第4期22卷 31-33页

作者：张杰张金川石油大学盆地与油藏研究中心中国地质大学

根据天然气的受力情况及气水界面的变化状态 ,将深盆气藏划分为 3个演化阶段 :生长阶段、稳定阶段、萎缩阶段。在其生长阶段 ,内部压力结构在垂向上表现为下述三种情况之一 :①高压异常 ;②高压异常→正常压力 ;③高压异常→正常压力→... 详细信息

根据天然气的受力情况及气水界面的变化状态 ,将深盆气藏划分为 3个演化阶段 :生长阶段、稳定阶段、萎缩阶段。在其生长阶段 ,内部压力结构在垂向上表现为下述三种情况之一 :①高压异常 ;②高压异常→正常压力 ;③高压异常→正常压力→低压异常。在其稳定阶段和萎缩阶段 ,内部压力结构表现为低压异常 ,尤其在萎缩阶段其低压特征表现得更为明显。由于气体运移和储层非均质性的影响 ,气藏内部压力随深度呈非线性变化 ,下部的压力梯度大于上部压力梯度 ,压力梯度线偏离均质气藏静态压力梯度线。

关键词：油气藏形成压力系统压力异常

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