检索结果-内蒙古大学图书馆

International Petroleum and Petrochemical technology Conference 2024, IPPTC 2024

作者： Ping, Xiaolin Han, Guoqing Zhang, Jiqun Wang, Hongliang Liu, Changchun Liu, Jungang China Research Institute of Petroleum Exploration & Development PetroChina China Artificial Intelligence Technology R&D Center for Exploration and Development CNPC China PetroChina Changqing Oilfield Company China Exploration & Development Research Institute of Changqing Oilfield China

Natural gas hydrate production tests have been carried out successfully with different exploitation methods and gas recovery drainage technologies. The purpose of this study is to elucidate the fluid flow behavior in the jet pump lifted natural gas hydrate wells and optimize hot water injection parameters for the jet pump drainage gas recovery technology. The mechanism of jet pump drainage recovery of natural gas hydrate wells was analyzed and its applicability to natural gas hydrate exploitation with combined depressurization and heat injection method was demonstrated. In addition, multiphase flow models of tubing and annulus were established respectively for the phenomenon of countercurrent flow of heat exchange in the jet pump drainage gas recovery process, and the corresponding multiphase flow laws were derived. Based on the study of multiphase flow, sensitivity analysis and optimization of heat injection parameters were performed. It has been demonstrated that jet pump drainage gas recovery technology is suitable for the exploitation of onshore natural gas hydrate with combined depressurization and heat injection method. The multihphase flow behavior in the tubing and annulus of the jet pump lifted natural gas hydrate wells was disclosed in this study. Numerical simulation results show that the temperature and pressure distribution in the wellbore of the jet pump lifted natural gas hydrate wells during the recovery process are affected by the injection conditions. This study provides theoretical guidance for the production optimization and hydrate prevention and control in the wellbore of the jet pump lifted natural gas hydrate wells. © 2024 Institute of Physics Publishing. All rights reserved.

关键词： Sensitivity analysis

来源：评论

学校读者我要写书评

暂无评论

Study on Fracture Propagation in Tight Sandstone by Large-Scale Physical Simulation Experiments 12th

Study on Fracture Propagation in Tight Sandstone by Large-Sc...

引用

12th International Field Exploration and development Conference, IFEdC 2022

作者： Li, Jia-Ying Qi, Chun-Yan Wu, Bo-Hong Gu, Ye Zhou, Tuo CNPC Engineering Technology R&D Company Limited Beijing China CNPC Research Institute of Petroleum Exploration and Development Beijing China

ISBN: (纸本)9789819919635

Physical simulation experiment on hydraulic fracturing is an effective and reliablemethod to understand the initiation and propagation of hydraulic fractures. However, shale and cement samples are mostly used in current experiments, while tight sandstone is seldom studied. Besides, the experiments are usually conducted with single-stage fracturing, ignoring the interaction between fractures in the actual fracturing. In this paper, a pioneer large-scale physical simulation experiment is conducted by multi-stage hydraulic fracturing to reveal the initiation and propagation of fracture in tight sandstone. Two groups of tight sandstone samples were prepared as the size of 28 × 28 ×36,where four circular notches were designed on the wellbore to represent fracturing clusters. The tests were performed by a large block polyaxial stress frame and the acoustic emissions data were observed to indicate the features of fracture complexity. Consequently, the effects of hydraulic fracture interaction, pumping rate and rate pulsing on fracture propagation were studied. The results showed that the simple fractures were mainly formed in tight sandstone, while the complex fractures were rarely formed since the mutual inhibition between fractures under stress shadow. The fracture initiation and breakdown pressures increase gradually with the pump rate, while the rate change has no significant effect on the fracture radius. The rate pumping can effectively increase fracture complexity, further improving the effect of reservoir stimulation. This work successfully reveals the effects of different factors on fracture initiation and propagation, offers an innovative method of physical simulation experiment on hydraulic fracturing, and provides a significant reference for fracturing design optimization of tight sandstone. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023.

关键词： Fracture

来源：评论

学校读者我要写书评

暂无评论

Progress in the development of IOWN technology

引用

NTT Technical review 2022年第5期20卷 11-17页

作者： Kawashima, Masahisa Aragane, Yosuke IOWN Development Office R&D Planning Department NTT Japan The IOWN GF Technology Working Group Japan IOWN Global Forum Japan

Technical improvements in full-stack layers are essential to develop a future infrastructure with higher capacity, lower latency, and lower power consumption toward a cyber-physical society. NTT announced its roadmap for this technology, the Innovative Optical and Wireless Network (IOWN), in April 2020 and has accelerated to implement the roadmap with global partners of the IOWN Global Forum (IOWN GF). IOWN GF developed and published a series of deliverables on Open All-Photonic Network (Open APN), IOWN for Mobile Network, Fiber Sensing for Open APN, data-Centric Infrastructure, IOWN data Hub, and a reference Implementation Model. This article provides an overview of these deliverables and describes the growth of IOWN GF and its activities. © 2022 Nippon Telegraph and Telephone Corp.. All rights reserved.

关键词： Wireless networks

来源：评论

学校读者我要写书评

暂无评论

A novel reprocessable chloroprene rubber based on dynamic disulfide metathesis

引用

International Journal of Smart and Nano materials 2024年第1期15卷 42-61页

作者： Jianliang Jiang Junxue Zhai Yanqing Chen dongqi Zhao Yakai Feng School of Chemical Engineering and Technology Collaborative Innovation Center of Chemical Science and Chemical Engineering(Tianjin)Tianjin UniversityTianjinChina R&D Department of China(Yangzhou) Material Handling Tech-Engineering LtdYangzhouChina Key Laboratory of Rubber Plastics of Ministry of Education/Shandong Province (QUsT)School of Polymer Science&EngineeringQingdao University of Science&TechnologyQingdaoChina R&D Department of Tianjin Joaboa Technology Co.Ltd TianjinP.R.China Frontiers Science Center for Synthetic Biology Tianjin UniversityTianjinChina Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin UniversityTianjinChina

For sustainable application of chloroprene rubber(Cr),a new technology is developed by the vulcanization of Cr using 2,2'-dithiodipyridine(dPd)as a cross-linking agent with the repro-cessing performance owing to disulfde *** dPd was incorporated into Cr vulcanization,the Menschutkin reac-tion between allyl chloride group and pyridine group occurred with a maximum exothermic peak at 184°*** number of effective cross-linking bond at o.5 phr dPd vulcanizate was higher than that at high dPd *** vulcanizate showed high tensile strength(11.12 MPa)and elongation at break(1253±120%)owing to the exchangeable disulfide bond in the *** the catalysis of triphenylphosphine,the metathesis of disulfide compound was improved obviously,which endowed Cr/dPd vulcanizates with good recyclability *** cross-linkage maintains its stability at low temperature,thus ensuring the mechanical stability of Cr/dPd vulcanizate under the ambient *** and reprocessing of Cr/dPd vulcanizate can be conducted with common industrial rubber processing *** reprocessable chloroprene rubber could have potential appli-cation in Cr industry,also serve to significantly improve envir-onmental sustainability.

关键词： Chloroprene rubber reprocessable Menschutkin reaction disulfide

来源：评论

学校读者我要写书评

暂无评论

reverse Laser Assisted Bonding (r-LAB) technology for Chiplet Module Bonding on Substrate 24

Reverse Laser Assisted Bonding (R-LAB) Technology for Chiple...

引用

24th Electronics Packaging technology Conference, EPTC 2022

作者： Na, SeokHo Gim, MinHo Kim, GaHyeon ryu, dongSu Park, dongJoo Kim, JinYoung Amkor Technology Korea Inc. Advanced Process & Material Development Global R&d Center 150 Songdomirate-ro Yeonsu-gu Incheon Korea Republic of

ISBN: (纸本)9798350398854

There are several chip-to-substrate interconnection technologies in the packaging tool kit such as mass reflow (Mr), thermocompression bonding (TCB) and laser assisted bonding (LAB). Mr is a mature process but has known limitations on fine pitch devices and large/thin substrate packages. TCB has the advantage to minimize bump stress for low-K dielectric devices but its productivity is very low. However, LAB can provide a solution for advanced devices with its localized heating and short bonding time. recently, demand for fine-pitch, Flip Chip bumps and large/thin substrate packages has increased, resulting in industry interest in LAB due to its good quality and high productivity. Amkor technology invented LAB technology in 2014 and passed qualification for multiple devices from customers through many years of development and has been in high volume production for major customers since 2018. However, as the industry continues to require high bonding performance with various new devices, existing LAB technology may not support all these applications. These devices have led to the development of a new bonding concept, which is reverse laser assisted bonding (r-LAB) technology. r-LAB emits the laser to the bottom side of the substrate through a vacuum stage block, which is opposite laser emission direction to existing LAB. It was developed in 2021 by Amkor technology and showed promising results for the packages where top LAB does not work. There are several devices that require r-LAB. One is back side metallization (BSM) die. BSM dies are necessary for metal thermal interface material (TIM) applications for high thermal performance packages. Promising results for BSM die were published in recent 72nd ECTC [1]. Other devices that require r-LAB include chiplet module bonding on substrate and drAM packaging in an epoxy molding compound (EMC). A chiplet module is necessary for high-performance applications such as servers, networking, artificial intelligence (AI), graphics

关键词： Substrates

来源：评论

学校读者我要写书评

暂无评论

New Understanding of Matrix-Fracture dual Media reservoir damage Based on Pressure-Controlled Fracturing 58

New Understanding of Matrix-Fracture Dual Media Reservoir Da...

引用

58th US rock Mechanics / Geomechanics Symposium 2024, ArMA 2024

作者： Zhang, Yang Qiao, Yan Zhang, Shiling Wu, Hongjun Bai, Jie Guo, Xudong Li, Senmu CNPC Engineering Technology R&D Company Limited BeiJing China Research Institute of Petroleum Exploration & Development BeiJing China PetroChina Tuha Oilfield Company HaMi China

ISBN: (纸本)9798331305086

The Tarim Oilfield Krasu tectonic zone is deeply burial, high temperature, low porosity and permeability, and constitutes the complex matrix-fracture dual media seepage channels. reservoir damage evaluation for such reservoirs is important for subsequent development. In this study, we firstly processed the fracture network in the reservoir core by controlled-pressure fracturing to improve the fracture tortuosity, and verified the reasonableness of this method by CT scanning and shape factor calculation. Then, based on the dual-media condition, we establish the water/oil-lock damage evaluation method, the stress-sensitive evaluation method, the fluid-sensitive evaluation method, and the in-well fluid damage evaluation method. Based on the above methods, the sensitivity of matrix-fracture dual-media reservoirs is moderately strong for water-oil locking, stress, and fluid salinity, moderately weak for liquid alkalinity, weakest for liquid flow rate. In-well fluid damage replacement experiments show that reservoir damage caused by first contact is the most important factor of reservoir damage during the whole process of drilling-completion-reconstruction. For deep tight reservoirs, fracturing fluid is easy to cause serious reservoir damage, and it is necessary to pay attention to reservoir protection during fracturing in low-yield blocks. Copyright 2024 ArMA, American rock Mechanics Association.

关键词： Fracturing fluids

来源：评论

学校读者我要写书评

暂无评论

Efficient Adsorptive denitrogenation on a Metal-organic Framework-based Cocatalyst with Fluorine Modification

引用

China Petroleum Processing & Petrochemical technology 2024年第4期26卷 73-83页

作者： Hou Changan Yang Qinghe Li Huifeng Zhao Zhe Wang danhong TKL of Metal and Molecule Based Material ChemistrySchool of Materials Science and EngineeringNankai UniversityTianjin 300350China National Energy R&D Center of Petroleum Refining Technology SINOPEC Research Institute of Petroleum Processing Co.Ltd.Beijing 100083China

NH_(2)-MIL-125 is one of the most promising metal-organic frameworks(MOFs)for use as an adsorbent to remove nitrogen-containing compounds(NCCs)from *** this study,NH_(2)-MIL-125 was further modified by loading the highly electronegative F and the heteropoly acid phosphomolybdic acid hydrate(PMA).Hydrogen bonds are suggested to form between F and PMA.X-ray diffraction(Xrd)and scanning electron microscopy(SEM)showed that the addition of these elements altered the morphology of NH_(2)-MIL-125,resulting in the growth of sectional octahedrons and *** adsorptive denitrogenation(AdN)activity of 10%PMA@M125 was 1.7 times greater than that of NH_(2)-MIL-125 without F and *** synergistic effect of F and PMA on the morphology and structure of NH_(2)-MIL-125 was examined,with a focus on different PMA *** study provides a simple method for modifying the morphology and structure of NH_(2)-MIL-125 by adding the required elements.

关键词： metal-organic frameworks phosphomolybdic acid adsorptive denitrogenation fluorine

来源：评论

学校读者我要写书评

暂无评论

Carbonate Fracture-Cavity reservoirs Prediction technology Based deep Learning Model 13th

Carbonate Fracture-Cavity Reservoirs Prediction Technology B...

引用

13th International Field Exploration and development Conference, IFEdC 2023

作者： Li, Ning Gong, ren-Bin ren, Liang ren, Shu-Hang Sun, Jiang- tao Yu, Xiao Gan, Chun-Ting Research Institute of Petroleum Exploration and Development PetroChina Beijing China Artificial Intelligence Technology R&D Center for Exploration and Development CNPC Beijing100083 China Technology Consult Center Research Institute of Petroleum Exploration and Development PetroChina Beijing100083 China Huawei Technology Co. Ltd. Beijing100085 China

ISBN: (纸本)9789819702718

Paleozoic carbonate rock is the key field of oil-gas exploration in Tarim Basin. Fracture-cavity reservoirs are often developed in carbonate reservoirs in Tarim Oilfield, a large amount of oil and gas resources are dis-tributed in Paleozoic reservoirs with different burial depths and scales, accurately and quickly identifying these fracture-cavity reservoirs is Significant to the oil and gas exploration, development, and production of the Tarim Oilfield. With the continuous development of artificial intelligence technology, machine learning methods have been widely applied in various scenarios of oil and gas exploration and development, bringing new opportunities for the development of carbonate reservoir prediction technology. Based on drilling, logging and seismic data, this study comprehensively analyzes the structure, rock and physical properties of carbonate reservoirs in the study area, exploring the main controlling factors of carbonate reservoirs. On this basis, a sample set corresponding to the fracture-cavity reservoirs in the study area was constructed, by using machine learning methods, a prediction model for carbonate rock fracture-cavity reservoirs has been established, which can intelligently predict carbonate rock fracture and cave reservoirs in the research area. The trained model of carbonate rock fracture and cave reservoir prediction can quickly and accurately identify fracture and cave reservoirs on post stack seismic data. This study demonstrates that methods are based on machine learning can quickly and efficiently predict carbonate rock fracture-cavity reservoirs. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Forecasting

来源：评论

学校读者我要写书评

暂无评论

Inhibiting Voltage decay in Li-rich Layered Oxide Cathode:From O3-Type to O2-Type Structural design

引用

Nano-Micro Letters 2024年第12期16卷 81-102页

作者： Guohua Zhang Xiaohui Wen Yuheng Gao renyuan Zhang Yunhui Huang Institute of New Energy for Vehicles Shanghai Key Laboratory for R&D and Application of Metallic Functional MaterialsSchool of Materials Science and EngineeringTongji UniversityShanghai 201804People’s Republic of China Contemporary Amperex Technology Co. LtdNingde 352100People’s Republic of China State Key Laboratory of Material Processing and Die and Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiPeople’s Republic of China

Li-rich layered oxide(LrLO)cathodes have been regarded as promising candidates for next-generation Li-ion batteries due to their exceptionally high energy density,which combines cationic and anionic redox ***,continuous voltage decay during cycling remains the primary obstacle for practical applications,which has yet to be fundamentally *** is widely acknowledged that voltage decay originates from the irreversible migration of transition metal ions,which usually further exacerbates structural evolution and aggravates the irreversible oxygen redox ***,constructing O2-type structure has been considered one of the most promising approaches for inhibiting voltage *** this review,the relationship between voltage decay and structural evolution is systematically *** to suppress voltage decay are systematically ***,the design of O2-type structure and the corresponding mechanism of suppressing voltage decay are comprehensively ***,the reported O2-type LrLO cathodes still exhibit partially disordered structure with extended ***,the factors that may cause the irreversible transition metal migrations in O2-type LrLO materials are also explored,while the perspectives and challenges for designing high-performance O2-type LrLO cathodes without voltage decay are proposed.

关键词： Lithium-ion batteries Li-rich layered oxide Voltage decay Migration of transition metal ions O2-type structural design

来源：评论

学校读者我要写书评

暂无评论

research Progress of Micro-CT in the Field of Petroleum Engineering 13th

Research Progress of Micro-CT in the Field of Petroleum Engi...

引用

13th International Field Exploration and development Conference, IFEdC 2023

作者： Ye, Zhi-Lin Lu, Hai-Wei Gao, Xiang Liu, Jian-Quan Jin, Yi CNPC Engineering Technology R&D Company Limited Beijing China Research Institute of Petroleum Exploration and Development Beijing China Drilling and Production Technology Research Institute PetroChina Jidong Oilfield Company Hebei China

ISBN: (纸本)9789819704675

Computerized Tomography (CT) technology has gained wide development in the field of petroleum geology due to its unique advantages in rapid, high-precision, non-destructive analysis, and three-dimensional imaging for microstructure analysis. This article reviews the research progress of CT scanning technology in the field of petroleum engineering in recent years and summarizes its applications in reservoir microstructure, rock and mineral properties, digital core simulation, and non-destructive analysis of rubber materials. Quantitative characterization information such as reservoir pore structure, mineral composition, particle size distribution, and fracture identification can be obtained through three-dimensional image analysis. By constructing digital cores, rock physical properties such as elasticity, permeability, electrical properties, and oil-water distribution can be further studied. In addition, CT scanning and imaging technology have also been gradually applied to defect analysis in rubber materials, providing new technical means for predicting their failure behavior. The construction of digital cores based on CT scanning technology has become a research hotspot in the petroleum field, providing technical support for the three-dimensional visualization and fine quantitative characterization of rock structures. In the future, achieving the integration of digital core data and constructing an application platform from core to reservoir, from micro to macro scales, is the development trend of high-precision CT scanning combined with computer technology. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Computerized tomography

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：