A New Model Of Surface And Underground Integrated Three-Dimensional Prevention And Control Of Rock Burst In Binchang Mining Area,
2023
Shaanxi Binchang Mining Group Co., Ltd., Xianyang 712000, China; Binchang Mining Area Disaster Comprehensive Control Engineering Research Center, Xianyang 713602, China
A New Model Of Surface And Underground Integrated Three-Dimensional Prevention And Control Of Rock Burst In Binchang Mining Area, Wu Xueming, Ma Xiaohui, Lyu Dazhao, Zheng Kaige, Wang Dongjie
Coal Geology & Exploration
With the continuous increase of coal mining intensity, the mine gradually moves to the deep, bringing about increasingly serious rock burst hazard. The deep rock burst mines often have one or more layers of hard and thick rock strata. These hard roofs are thick and strong integrity. When they suddenly rupture, they can release a large amount of elastic energies, which can easily to cause rock burst accidents and seriously restrict the safety of mine production. Herein, appropriate treatment measures were put forward for the special situation of deep burial depth of coal seam and general presence of many kinds …
Co2-Ecbm Simulation Study Considering Klinkenberg Factor State,
2023
School of Mechanical & Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Co2-Ecbm Simulation Study Considering Klinkenberg Factor State, Sa Zhanyou, Wu Jingbo, Yang Yongliang, Zhang Xin, Lu Shouqing, Liu Jie, Wang Hao
Coal Geology & Exploration
In order to explore the role of Klinkenberg effect and Klinkenberg factor in different states in the process of CO2-Enhanced Coal Bed Methane (CO2-ECBM), the effects of Klinkenberg factor of zero, fixed Klinkenberg factor and dynamic Klinkenberg factor on CO2-ECBM were simulated and analyzed by COMSOL finite element software. The dynamic changes of CH4 and CO2 pressure with this factor were studied, and the CH4 gas production was compared with the engineering practice. The results show that the effective permeability of CH4 and CO2 increases slowly at first, then …
Ecological Environment Assessment Of Shanxi Province And Planned Mining Area Based On Coupling Remote Sensing Ecological Index (Rsei) Model,
2023
School of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Ecological Environment Assessment Of Shanxi Province And Planned Mining Area Based On Coupling Remote Sensing Ecological Index (Rsei) Model, Ji Xianglin, Yan Yueguan, Guo Wei, Teng Yongjia, Zhao Chuanwu
Coal Geology & Exploration
Ecological environment quality is an important indicator to evaluate the livability, and quantitative assessment on the change rule of regional ecological environment quality could provide scientific basis for the regional ecological environment protection and governance. Taking Shanxi Province and its planned mining area as the research area, the original Remote Sensing Ecology Index (RSEI) is added with Net Primary Productivity (NPP) and Habitat Quality (HQ) to characterize the carbon sink level and habitat suitability respectively based on Google Earth Engine (GEE) platform. Herein, three representative years from 2000 to 2018 were selected for analysis. Specifically, the temporal and spatial heterogeneity …
Influencing Mechanism Of Rock Thermal Resistance On Convective Heat Transfer Of Fracture,
2023
Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China; Technology Innovation Center for Geothermal & Hot Dry Rock Exploration and Development, Ministry of Natural Resources, Shijiazhuang 050061, China
Influencing Mechanism Of Rock Thermal Resistance On Convective Heat Transfer Of Fracture, Wang Yaning, Lu Chuan, Wang Guiling
Coal Geology & Exploration
The convective heat transfer characteristics between high temperature rocks and fluids in Enhanced Geothermal Systems (EGS) have been an important fundamental element of research on Hot Dry Rock (HDR). The thermal resistance of rock has an important influence on the convective heat transfer characteristics of fracture. In order to study its specific influence, two research methods, i.e., the theoretical analysis and the numerical simulation, were used in combination to study the heat transfer law between two parallel smooth flat plates by discussing the analytical solution and establishing the numerical model. The results show that the local Nusselt number Nux …
Development Of Storage Equipment Of Continuous Cable Pipe For Borehole Rescue,
2023
College of Construction Engineering, Jilin University, Changchun 130061, China; Engineering Research Center of Geothermal Resources Development Technology and Equipment, Ministry of Education, Jilin University, Changchun 130061, China
Development Of Storage Equipment Of Continuous Cable Pipe For Borehole Rescue, Gao Ke, Niu Xin, Zhao Yan, Qin Xiaolin, Lyu Xiaoshu, Xie Xiaobo
Coal Geology & Exploration
The double-bit bionic self-balancing continuous drilling technology has the advantages including requiring no drilling rig, high drilling speed and slight disturbance to the borehole wall. It is one of the key potential technologies for constructing the security and rescue passages against mine disasters. In this technology, as there are passages for power supply, signal, chip removal and other aspects that are built in the continuous cable pipe, it is required that there shall be no such interference, extrusion or arrangement of dynamic/static conductive electric conduction link as in using the existing drum hoist to store continuous pipes during storage. Therefore, …
Research On Control System Of Drill Pipe Conveying Device Based On Fuzzy Particle Swarm Optimization,
2023
CCTEG Xi’an Research Institute (Group) Co., Ltd., Xi’an 710077, China
Research On Control System Of Drill Pipe Conveying Device Based On Fuzzy Particle Swarm Optimization, Zhang Ning, Liu Qi, Shao Junjie, Chang Jianghua, Luo Pengping, Zou Zujie
Coal Geology & Exploration
In the tripping operation of large-diameter rescue well construction, the drill pipe conveying device used for large-diameter drilling tool transportation and drill string connection. In view of the problem that it is difficult to quickly and accurately lift the drill pipe to the angle of power head for make-up due to its easy vibration in the process of positioning, the structural characteristics and working principle of the drill pipe conveying device were analyzed at first. The kinematic model for the lifting of drill pipe was deduced with the structural relationship, obtaining the mapping relationship in the motion law of the …
Electric Utility Performance In The Mountain West,
2023
University of Nevada, Las Vegas
Electric Utility Performance In The Mountain West, Hira Ahmed, Miguel Soriano Ralston, Caitlin J. Saladino, William E. Brown Jr.
Environment
This fact sheet examines select data from the Citizens Utility Board (CUB) report, “Electric Utility Performance: A State-By-State Review,” which provides information on the affordability, reliability, and environmental responsibility of electric utility energy consumption. The original report provides a comprehensive state-by-state profile of utility performance in the United States. These data were originally reported by the Energy Information Administration (EIA) of the U.S. Department of Energy. This federal entity is responsible for the aggregation and dissemination of information about the American energy industry. This fact sheet highlights energy sources, affordability, reliability, and environmental impact of energy consumption in the Mountain …
Carbon Farming: A Preliminary Economic Analysis Of Carbon Credits For No-Till And Cover Crops,
2023
University of Nebraska-Lincoln
Carbon Farming: A Preliminary Economic Analysis Of Carbon Credits For No-Till And Cover Crops, Drew Havens, Richard K. Perrin, Lilyan E. Fulginiti
Cornhusker Economics
Summary Based on experimental data about the amount of carbon sequestered and estimated implementation costs, our preliminary results show that the average cost of sequestering carbon via no-till (about $22 per ton of CO2e) appears to be much lower than the $51 per ton social value of sequestering that ton. In contrast, our preliminary results show that the average costs of sequestration via adoption of cover crops is much higher, about $60 per ton. Depending on how accurate soil carbon models are in predicting sequestration on individual fields to qualify them for enrollment, reimbursement costs for planting cover …
Fallacies In The Design Of Climate Change Policies: A Response To Richard Epstein,
2023
Texas A&M University School of Law
Fallacies In The Design Of Climate Change Policies: A Response To Richard Epstein, Richard L. Revesz
Texas A&M Law Review
This Essay criticizes Professor Richard Epstein’s approach to climate change regulation, which he characterizes as one involving taking modest steps at first, observing the results of these steps, and then using the lessons learned to inform the next steps. Epstein’s approach depends critically on a particular class of damage function determining how greenhouse gas emissions cause harm—specifically, damage functions that lack discontinuities. And it also depends on the ability to observe in real time how the function occurs. Neither of these conditions are met with respect to climate change. The Essay also shows that Epstein’s approach is further undermined by …
Hydrocarbon Security Strategy And Carbon Peak And Carbon Neutral Strategy: Relationship And Path,
2023
Research Institute of Petroleum Exploration and Development, Beijing 100083, China
National Petroleum Strategy Research Center, Beijing 100083, China
Hydrocarbon Security Strategy And Carbon Peak And Carbon Neutral Strategy: Relationship And Path, Wenzhi Zhao, Kun Liang, Kun Wang, Shiguo Lin, Zhixin Li
Bulletin of Chinese Academy of Sciences (Chinese Version)
A century of changes combined with the COVID-19 pandemic has sounded the alarm on energy security around the world. How to deeply understand the relationship between energy transition and energy security, and how to explore the path of China's energy security and the carbon peaking and carbon neutrality (abbreviated as "dual carbon") strategy have become a major problem. Based on detailed analyses of China's energy consumption predictions and dual carbon strategy requirements, this study proposes:(1) Energy security is the foundation of energy transition. The oil and gas shortage situation in China may persist for a long time. The "dual carbon" …
Shale Oil Development And Utilization And Its Role In Energy Industry,
2023
China Petroleum & Chemical Corporation, Beijing 100728, China
State Key Laboratory of Shale Oil and Gas Accumulation Mechanisms and Effective Development, Beijing 102206, China
State Energy Center for Shale Oil Resource and Development, Beijing 102206, China
Sinopec Petroleum Exploration and Production Research Institute, Beijing 102206, China
Shale Oil Development And Utilization And Its Role In Energy Industry, Xusheng Guo, Maowen Li, Mengyun Zhao
Bulletin of Chinese Academy of Sciences (Chinese Version)
Shale oil boom in the United States has catapulted it from an importer of crude oil to a net exporter. Field applications show that both the shift in exploration paradigm from finding traps to targeting resource-rich petroleum source kitchens (i.e., "sweet spots") and the technological innovation represented by horizontal well multi-stage fracturing are among the key factors for the large-scale development of shale oil in the United States. Compared with marine shale oils in North America, China's lacustrine shale oil resources have great potential, but the endowment conditions are not optimal. Early exploration and development experience shows that the adaptive …
Challenges Of International Turmoil Situation To China’S Energy Resource Security And Coping Strategies,
2023
Global Mineral Resources Strategy Research Center, Chinese Academy of Geological Sciences, Beijing 100037, China
Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
Challenges Of International Turmoil Situation To China’S Energy Resource Security And Coping Strategies, Anjian Wang, Chunhui Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
China is at a critical stage of development from late industrialization to modernization, and is still in the basic conditions of energy resources supporting the sustainable development of the national economy. The world today is facing unprecedented turmoil situation since the end of the cold war. The ongoing political and military crisis in Europe has accelerated the transformation of the world's geopolitical map and profoundly affected the global supply, demand and trade pattern of energy resources. Nowadays, the "four circles and two systems" pattern of global oil and gas supply and demand is undergoing major adjustments, and the competition in …
Theory And Technology Considerations On High-Quality Development Of Coal Main Energy Security In China,
2023
State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China
Theory And Technology Considerations On High-Quality Development Of Coal Main Energy Security In China, Liang Yuan
Bulletin of Chinese Academy of Sciences (Chinese Version)
Coal is the ballast of energy security in China. In order to guarantee the high-quality development of energy security, China strongly supports the innovative development of coal industry. This study systematically summarizes the innovative achievements of China in six aspects, i.e., coal resource exploration technology, coal and gas co-mining theory and technology, typical dynamic disaster risk identification and early warning monitoring technology, integrated mining and intelligent mining technology and equipment, coal high-efficiency and clean utilization and coal-based clean energy high-efficiency conversion technology, coal and new energy multi-energy synergy technology. The study deeply analyzes the current challenges faced in above mentioned …
High-Quality Energy Development And Energy Security Under The New Situation For China,
2023
China Coal Technology & Engineering Group Co. Ltd., Beijing 100013, China
China Coal Research Institute, Beijing 100013, China
Beijing Tianma Intelligent Control Technology Co. Ltd., Beijing 101399, China
High-Quality Energy Development And Energy Security Under The New Situation For China, Guofa Wang, He Liu, Dandan Wang, Yihui Pang, Lixin Wu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Energy security is the cornerstone of national security and stable development, and high-quality energy development is the fundamental guarantee for long-term national economic growth. This study analyzes the complicated domestic and international environmental impacts of the ongoing Russia-Ukraine war, the United States energy rule, and the rigid demand for domestic energy consumption growth. It also analyzes the uncertainty of domestic energy transformation and development. Then, the study summarizes the enlightenment of China's energy development. Furthermore, based on China's energy structure and resource endowment, this study establishes an independent, controllable, safe and reliable integrated energy security system based on fossil energy, …
Mission Of New Energy Under Carbon Neutrality Goal In China,
2023
Research Institute of Petroleum Exploration and Development, Beijing 100083, China
Mission Of New Energy Under Carbon Neutrality Goal In China, Caineng Zou, Yanpeng Chen, Bo Xiong, Hanlin Liu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Reducing greenhouse gas emissions, curbing the global temperature rise, and striving to achieve the goal of carbon neutrality are the initiatives and common pursuit of human beings confronting the climate change crisis. Carbon neutrality is a huge systemic project involving multiple disciplines and fields, and it requires a solid theoretical foundation and scientific methods to achieve the goal of carbon neutrality, hence the emergence of carbon neutrality science. The theoretical connotation of carbon neutrality includes two "dynamic balances", namely, the dynamic balance between global carbon emission and carbon absorption, and the dynamic balance between human development and the natural environment, …
Role Of Transnational Oil And Gas Exploration And Development In Ensuring National Energy Security,
2023
Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
China National Oil and Gas Exploration and Development Company Ltd., Beijing 100034, China
Role Of Transnational Oil And Gas Exploration And Development In Ensuring National Energy Security, Lirong Dou, Zuoqian Wang, Feng Gao, Xiaobing Liu
Bulletin of Chinese Academy of Sciences (Chinese Version)
United States is the founder of modern oil industry, which promoted the development of oil and gas in the world. By means of global layout of American oil companies, United States supercharges the backyard of North America while covets the forecourt of South America. United States realizes energy independence and opens energy hegemony during 70 years after World War II. On basis of reviewing the development history of American oil industry, this study analyzes the role of transnational oil and gas exploration, and development of Chinese national oil companies in ensuring national energy security. On the one hand, the entitlement …
Problems And Countermeasures For Construction Of China’S Salt Cavern Type Strategic Oil Storage,
2023
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
Problems And Countermeasures For Construction Of China’S Salt Cavern Type Strategic Oil Storage, Xilin Shi, Xinxing Wei, Chunhe Yang, Hongling Ma, Yinping Li
Bulletin of Chinese Academy of Sciences (Chinese Version)
Oil is an important strategic energy source, and the establishment of sufficient oil storage is a major need to ensure the political, economic and national defense security of the country. China's outer dependence for oil has exceeded 70% for three consecutive years, but the oil storage is extremely low. Underground salt caverns are internationally recognized as excellent places for large-scale oil storage, developed countries in Europe and the United States have built several salt cavern oil storages in the last century. The construction of salt cavern oil storage is expected to become an effective way to solve China's oil crisis. …
Making Minnesota A Model For Energy Storage Policy,
2023
University of Minnesota Law School
Making Minnesota A Model For Energy Storage Policy, Max Meyer
Minnesota Journal of Law, Science & Technology
No abstract provided.
Acknowledgments Of Reviewers,
2023
Central Mining Institute
Hitting Two Birds With One Emissions-Based Maintenance Stone – A Literature Review On Improving Overall Productivity Of Underground Diesel Fleets,
2023
University of Wollongong, Faculty of Arts, Social Sciences and Health, School of Health and Society, Wollongong, NSW 2522, Australia
Hitting Two Birds With One Emissions-Based Maintenance Stone – A Literature Review On Improving Overall Productivity Of Underground Diesel Fleets, Johannes Deon Swanepoel, Jennifer Hines, Vinod Gopaldasani, Brian Davies
Journal of Sustainable Mining
Many industries regard occupational health and safety as a core value and an integral component to maintaining high productivity, and, thus, shareholder value. Diesel fleets’ engine maintenance is instrumental in ensuring affected workplaces meet production requirements while controlling health and safety hazards that these fleets introduce to the workplace. This systematic literature review focuses on production and occupational health and safety advantages associated with the implementation and adherence to an emissions-based maintenance (EBM) program. The literature review was conducted across eight databases relevant to workplace health and engineering. To be eligible for inclusion, the publication had to contain maintenance interventions …
