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Research on thermal insulation materials properties under HTHP conditions for deep oil and gas reservoir rock ITP-Coring

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Petroleum Science 2024年第4期21卷 2625-2637页

作者： zhi-qiang he he-Ping Xie Ling Chen Jian-Ping Yang Bo Yu Zi-Jie Wei Ming-Zhong Gao State Key Laboratory of Intelligent Construction and healthy Operation and Maintenance of Deep Underground Engineering College of Water Resource and Hydropower Sichuan University Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green Energy College of Civil and Transportation Engineering Shenzhen University School of Mechanical Engineering Sichuan University College of Polymer Science and Engineering Sichuan University

Deep oil and gas reservoirs are under high-temperature conditions, but traditional coring methods do not consider temperature-preserved measures and ignore the influence of temperature on rock porosity and permeability, resulting in distorted resource assessments. The development of in situ temperaturepreserved coring(ITP-Coring) technology for deep reservoir rock is urgent, and thermal insulation materials are key. Therefore, hollow glass microsphere/epoxy resin thermal insulation materials(HGM/EP materials) were proposed as thermal insulation materials. The materials properties under coupled hightemperature and high-pressure(HTHP) conditions were tested. The results indicated that high pressures led to HGM destruction and that the materials water absorption significantly increased; additionally,increasing temperature accelerated the process. High temperatures directly caused the thermal conductivity of the materials to increase; additionally, the thermal conduction and convection of water caused by high pressures led to an exponential increase in the thermal conductivity. High temperatures weakened the matrix, and high pressures destroyed the HGM, which resulted in a decrease in the tensile mechanical properties of the materials. The materials entered the high elastic state at 150.C, and the mechanical properties were weakened more obviously, while the pressure led to a significant effect when the water absorption was above 10%. Meanwhile, the tensile strength/strain were 13.62 MPa/1.3%and 6.09 MPa/0.86% at 100.C and 100 MPa, respectively, which meet the application requirements of the self-designed coring device. Finally, K46-f40 and K46-f50 HGM/EP materials were proven to be suitable for ITP-Coring under coupled conditions below 100.C and 100 MPa. To further improve the materials properties, the interface layer and EP matrix should be optimized. The results can provide references for the optimization and engineering application of materials and thus technical su

关键词： Deep oil and gas reservoir rock In situ temperature-preserved coring (ITP-Coring) Hollow glass microsphere/epoxy resin thermal insulation materials (HGM/EP materials) High-temperature and high-pressure (HTHP) Physical and mechanical properties

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真空蒸馏制备高纯金属的研究进展

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Transactions of Nonferrous Metals Society of China 2024年第5期34卷 1634-1654页

作者：许志鹏贾莉犁何志强郭学益田庆华中南大学冶金与环境学院长沙410083

随着科学技术的发展,高新技术产业对金属的纯度要求越来越高。然而,痕量杂质的存在会对金属的性能产生不良影响。真空蒸馏工艺因其金属回收率高、环保性能好、设备简单等优点,被广泛应用于制备高纯金属。本文作者围绕真空蒸馏的原理和工... 详细信息

随着科学技术的发展,高新技术产业对金属的纯度要求越来越高。然而,痕量杂质的存在会对金属的性能产生不良影响。真空蒸馏工艺因其金属回收率高、环保性能好、设备简单等优点,被广泛应用于制备高纯金属。本文作者围绕真空蒸馏的原理和工艺,系统地总结了高纯金属制备的总体进展。介绍了真空蒸馏的原理、真空蒸馏炉的改进设计、参数优化和仿真模拟。根据该技术制备高纯金属的现状,指出在科学研究中机理研究和仿真模拟是必不可少的。本研究对提高生产效率、节约生产成本及提高金属纯度具有一定的借鉴意义。

关键词：真空蒸馏高纯金属理论计算工艺研究模拟

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Surface plasmon polaritons frequency-blue shift in low confinement factor excitation region

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Chinese Physics B 2021年第8期30卷 345-350页

作者： Ling-Xi Hu zhi-qiang he Min Hu Sheng-Gang Liu Terahertz Research Center School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China Key Laboratory of Terahertz Technology Ministry of EducationChengdu 610054China

Surface plasmon polaritons'(SPPs')frequency blue shift is observed in finite-difference time-domain(FDTD)simulation of parallel electron excitation Au bulk *** with cold dispersion of SPPs,an obvious frequency blue shift is obtained in low confinement region excitation simulation ***,according to SPPs'transverse attenuation characteristics,the excited frequency mode instead of cold dispersion corresponding frequency mode matches ***,this excited mode is confirmed to be SPPs'*** is well known the lower the frequency,the smaller the confinement factor is and the lower the excitation efficiency,the wider the bandwidth of excited SPPs *** considering the attenuation in whole structure,the excited surface field contains attenuation *** a low confinement factor region,the higher the SPPs'frequency,the higher the excitation efficiency is,while broadband frequency information obtained in attenuation signal provides high frequency information in stimulation ***,in the beam-wave interaction,as the signal oscillation time increases,the frequency of the oscillation field gradually ***,compared with cold dispersion,the frequency of excited SPP is blueshifted This hypothesis is verified by monitoring the time domain signal of excited field in low and high confinement factor regions and comparing ***,this frequency-blue shift is confirmed to have commonality of SPPs,which is independent of SPPs'material and ***,this frequency-blue shift is confirmed in an attenuated total reflection(ATR)*** to frequency dependence of most of SPPs'devices,such as coherent enhancement radiation and enhancement transmission devices,the frequency-blue shift presented here is of great influence in the SPPs applications.

关键词： surface plasmon polaritons(SPPs) frequency-blue shift surface plasmon resonance(SPR) coherent enhancement radiation

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In-situ pressure-preserved coring for deep exploration:Insight into the rotation behavior of the valve cover of a pressure controller

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Petroleum Science 2023年第4期20卷 2386-2398页

作者： Da Guo he-Ping Xie Ling Chen Zhong-Ya Zhou he-Ping Lu Lin Dai Ding-Ming Wang Tian-Yu Wang Ju Li zhi-qiang he Yun-Qi Hu Ming-Zhong Gao School of Mechanical Engineering Sichuan UniversityChengduSichuan610065China MOE Key Laboratory of Deep Underground Science and Engineering College of Water Resource and HydropowerSichuan UniversityChengduSichuan610065China Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green EnergyCollege of Civil and Transportation EngineeringShenzhen UniversityShenzhenGuangdong518060China Petroleum Engineering Technology Research Institute of Sinopec Jianghan Oilfield Company WuhanHubei430035China

In-situ pressure-preserved coring(IPP-Coring)is considered to be the most reliable and efficient method for the identification of the scale of oil and gas *** IPP-Coring,because the rotation behavior of the pressure controller valve cover in different medium environments is unclear,interference between the valve cover and inner pipe may occur and negatively affect the IPP-Coring success *** address this issue,we conducted a series of indoor experiments employing a high-speed camera to gain greater insights into the valve cover rotation behavior in different medium environments,e.g.,air,water,and simulated drilling *** results indicated that the variation in the valve cover rotation angle in the air and fluid environments can be described by a one-phase exponential decay function with a constant time parameter and by biphasic dose response function,*** rotation behavior in the fluid environments exhibited distinct elastic and gravitational acceleration *** the fluid environments,the density clearly impacted the valve cover closing time and rotation behavior,whereas the effect of viscosity was very *** can be attributed to the negligible influence of the fluid viscosity on the drag coefficient found in this study;meanwhile,the density can increase the buoyancy and the time period during which the valve cover experienced a high drag *** these results,control schemes for the valve cover rotation behavior during IPP-Coring were proposed for different layers and geological conditions in which the different drilling fluids should be used,e.g.,the use of a high-density valve cover in high-pore pressure layers.

关键词： In-situ coring Pressure coring Pressure controller Rotation behavior Drilling fluid

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Research on properties of hollow glass microspheres/epoxy resin composites applied in deep rock in-situ temperature-preserved coring

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Petroleum Science 2022年第2期19卷 720-730页

作者： zhi-qiang he Yang Yang Bo Yu Jian-Ping Yang Xiang-Biao Jiang Bo Tian Man Wang Xi-Yuan Li Si-Qing Sun Hui Sun State Key Laboratory of Hydraulics and Mountain River Engineering MOE Key Laboratory of Deep Earth Science and EngineeringCollege of Water Resource and HydropowerSichuan UniversityChengdu 610065SichuanChina Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green EnergyCollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060GuangdongChina Shenzhen Key Laboratory of Deep Underground Engineering Sciences and Green Energy Shenzhen UniversityShenzhen 518060GuangdongChina School of Mechanical Engineering Sichuan UniversityChengdu 610065SichuanChina College of Polymer Science and Engineering Sichuan UniversityChengdu 610065SichuanChina Changsha High tech Automation Equipment Co. LTD Changsha 410100HunanChina Jinshi Drilltech co. LtdTangshan 063000HebeiChina State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization Institute of Coal Mining and UtilizationPingdingshan Tianan Coal Mining Co.LTD.Pingdingshan 467000China Xi’an Research Institute China Coal Technology&Engineering Group CorpXi’an 710077China

Deep petroleum resources are in a high-temperature ***,the traditional deep rock coring method has no temperature preserved measures and ignores the effect of temperature on rock porosity and permeability,which will lead to the distortion of the petroleum resources reserves ***,the hollow glass microspheres/epoxy resin(HGM/EP)composites were innovatively proposed as temperature preserved materials for in-situ temperature-preserved coring(ITP-Coring),and the physical,mechanical,and temperature preserved properties were *** results indicated that:As the HGM content increased,the density and mechanical properties of the composites gradually decreased,while the water absorption was deficient without hydrostatic *** composites with 50 vol%HGM,when the hydrostatic pressure reached 60 MPa,the water absorption was above 30.19%,and the physical and mechanical properties of composites were *** the hydrostatic pressure was lower than 40 MPa,the mechanical properties and thermal conductivity of composites were almost ***,the composites with 50 vol%HGM can be used for ITPCoring operations in deep environments with the highest hydrostatic pressure of 40 ***,to further understand the temperature preserved performance of composites in practical applications,the temperature preserved properties were *** unsteady-state heat transfer model was established based on the test results,then the theoretical change of the core temperature during the coring process was *** above tests results can provide a research basis for deep rock in-situ temperature preserved corer and support accurate assessment of deep petroleum reserves.

关键词： Deep rock in-situ temperature-preserved coring(ITP-Coring) Hollow glass microspheres/epoxy resin composites Hydrostatic pressure Unsteady-state heat transfer model

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Beneficial effects of autologous bone marrow mononuclear cell transplantation against ischemic bile duct in rats

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Chinese Medical Journal 2011年第2期124卷 280-283页

作者： LI Li-xin CheN DA-zhi he qiang Department of hepatobiliary Surgery Chaoyang Hospital Capital Medical University Beijing 100020 China

Background Bone marrow cell transplantation has been shown to induce angiogenesis and thus improve ischemic *** study evaluated the effect of bone marrow mononuclear cell （BM-MNCs） implantation on neovascularization in rats with ischemic bile *** We established an animal model for ischemic biliary stenosis by clamping *** were 10 rats in each group：BM-MNCs implantation group,control group and normal *** femur BM-MNCs were isolated using density gradient ***-MNCs or phosphate buffered saline were injected into three points around bile duct tissue in the three groups （25 μl/point）.Control rats received injections of saline under similar *** the 21 days after operation,cholangiography was *** of the engrafted cells and capillary density in the bile duct were analyzed by immunohistochemical *** Engrafted cells could differentiate into endothelial *** stricture rate in the implantation group was 40%,significantly lower than that in the control group （100%）.The capillary density in the implantation group was significantly higher than in the control group or the normal *** The implantation of BM-MNCs induced neovascularization in the ischemic bile *** improved the blood supply of the ischemic bile duct to prevent or decrease biliary ischemic stricture.

关键词： bile duct diseases ischemia revascularization

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Microstructures and mechanical properties of a commercial Mg-Al-Zn-Mn alloy with various hot-extrusion processes

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Rare Metals 2024年第3期43卷 1329-1336页

作者： he Ma Fan-zhi Meng qiang Yang Ze-Feng Xie Yuan-Ding Huang Xin Qiu State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun130022China MagIC-Magnesium Innovation Center Helmholtz-Zentrum Geesthacht21502GeesthachtGermany Engineering Research Center of Optoelectronic Functional Materials Ministry of EducationChangchun University of Science and TechnologyChangchun130022China

Mg-Al-Zn-Mn(AZ)system alloys have become widely used due to their good castability,excellent formability and outstanding corrosion resistance[1-6].However,their strength is still much lower than that of traditional Mg... 详细信息

关键词： alloys alloy corrosion

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Research on in-situ condition preserved coring and testing systems

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Petroleum Science 2021年第6期18卷 1840-1859页

作者： he-Ping Xie Tao Liu Ming-Zhong Gao Ling Chen Hong-Wei Zhou Yang Ju Feng Gao Xiao-Bo Peng Xiong-Jun Li Rui-Dong Peng Ya-Nan Gao Cong Li zhi-qiang he Ming-Qing Yang zhi-Yu Zhao Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green EnergyCollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen518060GuangdongChina Shenzhen Key Laboratory of Deep Underground Engineering Sciences and Green Energy Shenzhen UniversityShenzhen518060GuangdongChina MOE Key Laboratory of Deep Earth Science and Engineering College of Water Resource and HydropowerSichuan UniversityChengdu 610065SichuanChina School of Mechanical Engineering Sichuan UniversityChengdu610065SichuanChina Institute of New Energy and Low-Carbon Technology Sichuan UniversityChengdu610065SichuanChina State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology(Beijing)Beijing100083China Frontier Science Research Center for Fluidized Mining of Deep Underground Resources China University of Mining and TechnologyXuzhou221116JiangsuChina

As shallow resources are increasingly depleted,the mechanics'theory and testing technology of deep insitu rock has become *** coring technologies obtain rock samples without retaining the in-situ environmental conditions,leading to distortion of the measured ***,a coring and testing systems retaining in-situ geological conditions is presented:the coring system that obtains in-situ rock samples,and the transfer and testing system that stores and analyzes the rocks under a reconstructed *** ICP-Coring system mainly consists of the pressure controller,active insulated core reactor and insulation layer and sealing *** ultimate bearing strength of 100 MPa for pressurepreservation,temperature control accuracy of 0.97%for temperature-retained are ***_(4)and CO permeability of the optimized sealing film are as low as 3.85 and 0.33 ppm/*** average tensile elongation of the film is 152.4%and the light transmittance is reduced to 0%.Additionally,the pressure and steady-state temperature accuracy for reconstructing the in-situ environment of transfer and storage system up to 1%and±0.2 is *** error recorded of the noncontact sensor ring made of lowdensity polymer is less than 6%than that of the contact *** system can provide technical support for the deep in-situ rock mechanics research,improving deep resource acquisition capabilities and further clarifying deep-earth processes.

关键词： Deep mining In-situ environmental conditions In-situ condition preserved coring and testing In-situ transfer Deep-earth processes ICP-Coring In-situ condition-preserved coring

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Energy partition in laser-induced cavitation bubbles near the rigid wall with a gas-containing hole

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Journal of Hydrodynamics 2024年第3期36卷 435-443页

作者： Dong-qiao he Hai-gang Wen Si-yuan Geng Chen-xi Yang qiang Zhong zhi-feng Yao College of Water Resources and Civil Engineering China Agricultural UniversityBeijing100083China PowerChina Beijing Engineering Corporation Limited Beijing100024China State Key Laboratory of Efficient Utilization of Agricultural Water Resources Beijing100083China Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System China Agricultural UniversityBeijing100083China

To investigate the energy partition in laser-induced cavitation bubbles near the rigid wall with a gas-containing hole,we utilized a nanosecond resolution photography system based on a Q-switched Nd:YAG laser and conventional industrial camera to carefully observe the transient process of bubble collapse near the rigid wall with a gas-containing *** analyzed the generation of collapse microjets and the emission of collapse shock *** found that the cavitation bubble near the rigid wall with a gas-containing hole collapsed at different times and space,and produced various types of shock *** on the far field pressure information of the shock waves measured by hydrophone,the energy of the shock waves generated by the bubble collapse near the rigid wall with a gas-containing hole is calculated for the first *** results show that the ratio of collapse shock wave energy to bubble energy is approximately between 0.7 and 0.8.

关键词： Energy partition bubble collapse laser-induced shock wave gas-containing hole

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Iron–doped bismuth oxybromides as visible-light-responsive Fenton catalysts for the degradation of atrazine in aqueous phases

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Journal of Environmental Sciences 2024年第3期137卷 321-332页

作者： Yong-Li Cai Yu-Hang Xu Ji-Zun Xiang zhi-qiang Zhang Qiu-Xiang he Ya-Feng Li Jian Lü Fujian Provincial Key Laboratory of Soil Environmental health and Regulation College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhou 350116China

Pesticides and its degradation products,being well–known residues in soil,have recently been detected in many water bodies as pollutants of emerging concerns,and thus there is a contemporary demand to develop viable and cost–effective techniques for the removal of related organic pollutants in aqueous ***,a visible-light-responsive Fenton system was constructed with iron–doped bismuth oxybromides(Fe–BiOBr)as the *** the advantage of sustainable Fe(Ⅲ)/Fe(Ⅱ)conversion and optimized H_(2)O_(2)utilization,the optimal Fe–BiOBr–2 catalyst showed an excellent atrazine removal efficiency of 97.61%in 120 min,which is superior than the traditional homogeneous Fenton and the majority of heterogeneous processes documented in the *** this photo–Fenton system,hydroxyl(·OH)and superoxide(·O_(2)^(-))radicals were dominant active species contributed to the oxidative degradation of *** to the production of various active radicals,five degradation pathways were proposed based on the identification of intermediates and degradation ***,this work not only demonstrates a fundamental insight into creating highly efficient and atom economic photo-Fenton systems,but also provides a complementary strategy for the treatment of organic pollutants in water.

关键词： Bismuth oxybromide Photo–Fenton Atrazine Catalytic degradation

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