Technological System Of Water-Conserving Coal Mining,
2023
School of Mines, China University of Mining & Technology, Xuzhou 221116, China
Technological System Of Water-Conserving Coal Mining, Fan Limin, Sun Qiang, Ma Liqiang, Li Tao, Chen Haifu, Jiang Zequan
Coal Geology & Exploration
The research on water-conserving coal mining is the theoretical basis of water resource protection and high-quality development of coal in the ecologically vulnerable mining areas in northwest of our country. In view of the impact and damage on aquifer and ecosystem in ecologically vulnerable mining areas due to intensive mining activities in northwest China, the development process and scientific connotation of water-conserving coal mining was expounded herein. Specifically, the research on water-conserving coal mining has gone through four stages: initiation, formation, development and maturation, and a relatively perfect technological system has been formed at present, which is mainly reflected in …
Experimental Study On Co2-Enhanced Coalbed Methane Production And Its Simultaneous Storage,
2023
School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, China; Unconventional Gas Research Institute, Henan Polytechnic University, Jiaozuo 454003, China; School of Earth Resources, China University of Geosciences (Wuhan), Wuhan 430074, China; Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region, Jiaozuo 454003, China
Experimental Study On Co2-Enhanced Coalbed Methane Production And Its Simultaneous Storage, Su Xianbo, Huang Jin, Wang Qian, Yu Shiyao
Coal Geology & Exploration
Experimental study on CO2-enhanced coalbed methane production and its simultaneous storage Abstract: For a long time, a lot of work has been done on CO2-enhanced coalbed methane (CO2-ECBM), but the limited industrial trials failed to achieve the expected purpose, which prevented the promotion and application of CBM enhancement technology. In recent years, with the establishment of carbon neutrality routes in different countries, CO2 geological storage has gradually gained attention, and the questions of whether coal reservoirs can be treated as CO2 storage space and whether simultaneous CO2 displacing CH4 and …
Practice And Cognition Of Efficient Cbm Development Under Complex Geological Conditions: A Case Study Of Zhengzhuang Block, Qinshui Basin,
2023
PetroChina Huabei Oilfield Company, Renqiu 062552, China; CNPC Pilot Test Base of CBM Exploration and Development, Renqiu 062552, China
Practice And Cognition Of Efficient Cbm Development Under Complex Geological Conditions: A Case Study Of Zhengzhuang Block, Qinshui Basin, Zhu Qingzhong, Li Zhijun, Li Zongyuan, Wang Sanshuai, Sun Ruixue, Wang Yuting, Xiao Yuhang, Wang Jingyue, Guan Xiaoqu
Coal Geology & Exploration
The geological conditions of various CBM sites in China are complicated and features similarly. With the recent development of exploring CBM towards the medium-deep, ultra-low permeability and structurally complex areas, it is of great significance to develop a set of efficient exploring techniques in complex areas to revitalize a large number of domestic CBM resources. Taking an example of the successful development of Zhengzhuang Block with early low yield and relatively complex geology, it had faced a series of problems, including complex geological conditions with internal fracture, strong heterogeneity, low permeability, lack of corresponding developing technologies for the early stage …
Coal Methane Control And Its Emission Reduction Potential In China,
2023
Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China; Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China; School of Resource and Geoscience, China University of Mining and Technology, Xuzhou 221116, China
Coal Methane Control And Its Emission Reduction Potential In China, Sang Shuxun, Liu Shiqi, Han Sijie, Zheng Sijian, Liu Tong, Zhou Xiaozhi, Wang Ran, Wang Meng
Coal Geology & Exploration
Methane is the most important non-CO2 greenhouse gas, which has attracted more and more attention. Coal methane is the most important methane emission source in China, and China is also the country with the largest amount of coal methane emissions in the world. Therefore, the effective emission control and the efficient development and utilization of coal methane have triple benefits, such as greenhouse gas emission reduction, energy gas development and utilization, and hazardous gas control. Based on the accumulation of systematic investigation and research, the background of coal methane emission control was summarized and conclusion was made for the …
Discussion On Underground System Sealing Methods In In-Situ Pyrolysis Exploitation Of Tar-Rich Coal,
2023
College of Construction Engineering, Jilin University, Changchun 130026, China; National-LocalJoint Engineering Laboratory of In-situ Conversion, Drilling and Exploitation Technology for Oil Shale, Changchun 130026, China; Cooperative Innovation Center of Exploration and Development of Shale Oil and Gas Resources, Ministry of Education & Jilin Province, Changchun 130026, China; Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, Changchun 130026, China
Discussion On Underground System Sealing Methods In In-Situ Pyrolysis Exploitation Of Tar-Rich Coal, Guo Wei, Liu Zhao, Sun Youhong, Li Qiang, Deng Sunhua
Coal Geology & Exploration
China has abundant tar-rich coal resource, in-situ underground pyrolysis is the main trend of green and efficient development of tar-rich coal resources. However, the underground in-situ pyrolysis of tar-rich coal is still in the stage of technology research and development, and it is necessary to focus on the key technology of tar-rich coal to carry out research . Underground system sealing is one of the key technologies to ensure the efficient use of energy and ecological protection of tar-rich coal in-situ pyrolysis mining, and there is an urgent need to develop and construct underground system closure technology suitable for the …
Tectonic Control On Enrichment And Metallogenesis Of Strategic Metal Elements In Coal Measures,
2023
College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing 100083, China
Tectonic Control On Enrichment And Metallogenesis Of Strategic Metal Elements In Coal Measures, Cao Daiyong, Wei Yingchun, Qin Guohong, Ning Shuzheng, Wang Anmin, Zhang Yun, Li Xin, Wei Jinhao, Xu Laixin
Coal Geology & Exploration
The accumulation and distribution of strategic metal minerals in coal measures is the comprehensive result of multi-factors, multi-stages and multi-levels, amongst which the tectonic control is an important factor. The tectonic controlling factors of strategic metal enrichment and mineralization in coal measures include tectonic background, tectonic movement, tectono-magmatic activity, etc., which are reflected in the control of the metal mineral carrier (i.e., coal-bearing rock series), the source of metallogenic materials and the initial aggregation of elements and the later migration and recombination. The entire process of formation and evolution of coal-bearing basins is pervasively influenced by the control of tectonic …
The Mode Of “Five Modernization And Cooperation” In Coal Development Project,
2023
Shaanxi Yanchang Petroleum (Croup) Co., Ltd., Xi’an 710075, China; National & Local United Engineering Research Center of Green Safety Efficient Mining, Huangling 727307, China; School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
The Mode Of “Five Modernization And Cooperation” In Coal Development Project, Fan Jingdao, Huang Kejun, Li Chuan, Liu Wei, Song Yue, Yan Zhenguo
Coal Geology & Exploration
Mining engineering plays a crucial role in providing energy and raw materials to human societies. With the integration of new information technology and traditional mining technology, traditional mining engineering management is struggling to keep up with the demands of efficient coal resource development and utilization. In response, this paper proposes a "Five Modernizations and Cooperation" project management method that combines traditional and modern technologies. The Five Modernizations include greenization, intellectualization, integration, professionalization, and refinement. This method emphasizes multi-objective, collaborative, open, servo, and self-organizing characteristics, with the ultimate goal of optimizing value. The full life cycle engineering framework system is built …
Research And Practice On Key Technologies For Intelligentization Of Coal Mine,
2023
CCTEG Chinese Institute of Coal Science, Beijing 100013, China; CCTEG Xi’an Research Institute (Group) Co., Ltd., Xi’an 710077, China
Research And Practice On Key Technologies For Intelligentization Of Coal Mine, Wang Haijun, Cao Yun, Wang Honglei
Coal Geology & Exploration
Intelligentization of coal mine is an important way for coal industry to achieve sustainable development. It provides effective guarantee for coal mine enterprises to reduce workers, increase efficiency and improve the production safety. The new generation of information technologies, such as big data, robotics and artificial intelligence, strongly support the intelligent construction of coal mines. Firstly, the design ideas of intelligent mines are introduced in this paper, and the overall technical system of intelligent construction are developed. Secondly, the development status and trend of key technologies for the intelligentization of coal mine are analyzed, including the general heterogeneous control and …
Research Progress And Thinking On Integrated Tunneling And Detection Technology Of Rock Roadway With Tbm,
2023
State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001, China
Research Progress And Thinking On Integrated Tunneling And Detection Technology Of Rock Roadway With Tbm, Yuan Liang, Zhang Pingsong
Coal Geology & Exploration
The construction of Full Face Tunnel Boring Machine (TBM) in coal mines is crucial for achieving efficient and modern high-intensity development and mining operations. However, TBM has poor adaptability to adverse geological conditions, such as fracture zones, faults, soft rock layers, and water-rich areas, which can cause problems such as collapses, equipment sticking, and water gushing, hindering their development. To fully utilize the rapid tunneling efficiency of TBM, integrated design between advanced detection instruments and TBM must be performed. The key technology is the breakthrough in detection-while-tunneling. This paper reviews recent advancements in the integrated tunneling and detection technology of …
Construction Of Geological Guarantee System For Green Coal Mining,
2023
Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation, Xi’an University of Science and Technology, Xi’an 710054, China; College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, China; Geological Research Institute for Coal Green Mining, Xi’an University of Science and Technology, Xi’an 710054, China
Construction Of Geological Guarantee System For Green Coal Mining, Wang Shuangming, Geng Jishi, Li Pengfei, Sun Qiang, Fan Zhangqun, Li Dan
Coal Geology & Exploration
Large-scale and high-intensity mining of coal resources has induced damage to geological conditions and ecological environment in coal mining areas. It is of great significance to study the coupling mechanism of geological structure-groundwater environment-ecological environment dynamic evolution caused by coal mining. Development of the theory and technology of geological guarantee for green coal development is also critical for ensuring the high-quality development of coal industry in China. In additional to the current coal mining technology, research status of geological guarantee for green development of coal is analyzed in this paper Scientific connotation of “system of geological guarantee for green development …
Status And Advance Of Seismic Diffraction Exploration In Coalfield,
2023
State Key Laboratory of Coal Resource and Safety Mining, China University of Mining and Technology (Beijing), Beijing 100083, China
Status And Advance Of Seismic Diffraction Exploration In Coalfield, Peng Suping, Zhao Jingtao, Sheng Tongjie, Yang Jie, Tao Junhong
Coal Geology & Exploration
In China, there is an urgent need for intelligent and environmentally friendly coal mining practices to address the issue of accurately mapping transparent geological conditions, including coal rock structures, water-bearing bodies, goafs, and underground stress. These hidden disaster-causing bodies are prone to triggering mine accidents such as water inrush or gas outburst, which is the main obstacle to safe and intelligent coal mining. Three-dimensional seismic exploration is the main technology for detecting geological bodies such as faults and collapse columns. However, this technology, based on the framework of reflection theory, faces challenges in detecting small-drop faults and small-scale collapse columns. …
Research On Low Illumination Video Enhancement Technology In Coal Mine Heading Face,
2023
College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China;Shaanxi Key Laboratoty
of Mine Electromechanical Equipment Intelligenct Monitoring, Xi’an 710054, China
Research On Low Illumination Video Enhancement Technology In Coal Mine Heading Face, Zhang Xuhui, Yang Hongqiang, Bai Linna, Shi Shuo, Du Yuyang, Zhang Chao, Wan Jicheng, Yang Wenjuan, Mao Qinghua, Dong Zheng
Coal Geology & Exploration
Aiming at overcoming low illumination, uneven brightness, blurry texture and more noise in the video of coal mine heading face, a low illumination video enhancement algorithm was proposed for coal mine heading face. Firstly,the separability of convolution was utilized to carry out one-dimensional horizontal and vertical convolution of video images, then the perfect reflection method was used to achieve the automatic white balance, and the image hybrid enhancement technology was utilized to improve the overall brightness of the video images. Then, the image was divided into the highlight area, the middle tone area and the dark tone area by recursive …
Analysis And Jet Drilling Test Of Coiled Tubing Drilling String For Underground Coal Mine,
2023
China Coal Research Institute, Beijing 100013, China; CCTEG Xi’an Research Institute (Group) Co., Ltd, Xi’an 710077, China
Analysis And Jet Drilling Test Of Coiled Tubing Drilling String For Underground Coal Mine, Yao Ningping, Wang Li, Zhang Jinbao, Dou Xuqian, Wei Hongchao
Coal Geology & Exploration
Due to continuous tripping, uninterrupted circulation and other technical advantages, coiled tubing drilling has become one of the fastest developing oil-drilling-technologies in recent years. Developing the coiled tubing drilling technology for underground coal mine is an essential technical means to realize “less humanized” or even “unhumanized” coal drilling. Aiming at solving the key problems existing in the application of this technology in underground coal mine, such as pipe string optimization and drilling method, the coiled tubing jet directional drilling method was proposed. According to the mud pump capacity and borehole depth design for underground coal mine drilling, the fluid friction …
Review And Prospect Of Coal Mine Geological Guarantee System In
China During 30 Years Of Construction,
2023
CCTEG Xi’an Research Institute (Group) Co., Ltd., Xi’an 710077, China；CCTEG Chinese Institute of Coal Science, Beijing 100013, China;
Review And Prospect Of Coal Mine Geological Guarantee System In China During 30 Years Of Construction, Jia Jiancheng, Jia Qian, Sang Xiangyang, Wu Yan
Coal Geology & Exploration
Geological guarantee is the indispensable basis for the safe, efficient and green mining of coal mine. The primary objective of this paper is to present a detailed review of the construction progress of China’s geological guarantee system over the past three decades, covering the key aspects of its intention, basic theoretical research, and technological and equipment development. The statement outlines five complex technical problems faced by the geological guarantee system in the context of green and intelligent mining, which include the low level of intelligence in geological information collection and interpretation, the need to improve advance prediction reliability based on …
Theoretical And Technological Difficulties And Countermeasures Of Deep Cbm Exploration And
Development In The Eastern Edge Of Ordos Basin,
2023
China United Coalbed Methane National Engineering Research Center Co., Ltd., Beijing 100095, China; PetroChina Coalbed Methane Company Limited, Beijing 100028, China
Theoretical And Technological Difficulties And Countermeasures Of Deep Cbm Exploration And Development In The Eastern Edge Of Ordos Basin, Xu Fengyin, Yan Xia, Li Shuguang, Xiong Xianyue, Wang Yuxin, Zhang Lei, Liu Chuanqing, Han Jinliang, Feng Yanqing, Zhen Huaibin, Yang Yun, Wang Chengwang, Li Yuxin
Coal Geology & Exploration
Deep coalbed methane (CBM) resources (hereinafter referred to the CBM resources with the buried depth greater than 2 000 m) are abundant in China and have great potential in exploration and development. Since 2019, Daning‒Jixian block in the eastern edge of Ordos Basin has entered the stage of "scaled exploration + pilot test" of deep CBM, with the daily gas production exceeding 2 × 104 m 3in vertical wells and 10 × 104 m 3in horizontal wells. This remarkable achievement has broken through the traditional depth limitation in CBM exploration and development. Thus,the total resource of …
Table Of Contents,
2023
China Coal Technology and Engineering Group (CCTEG)
Present Situation And Technical Research Progress Of Coalbed Methane Surface Development In Coal Mining Areas Of China,
2023
CCTEG Xi’an Research Institute (Group) Co., Ltd., Xi’an 710077, China
Present Situation And Technical Research Progress Of Coalbed Methane Surface Development In Coal Mining Areas Of China, Zhang Qun, Jiang Wenping, Jiang Zaibing, Sun Siqing, Li Bingang, Du Xinfeng, Wu Xiuping, Zhao Jizhan, Fan Yao, Fan Zhangqun, Han Baoshan, Xu Yaobo, Liu Baigen
Coal Geology & Exploration
The exploration and development process of coalbed methane (CBM) in coal mining areas, which was implemented under the organization and cooperation of the coal enterprises in China, was reviewed in this paper. After more than 30 years of hard work and unremitting efforts, gratifying achievements have been made in the research, engineering experiments and industrial development on CBM surface development technology, including the successful CBM development of anthracite coal in Jincheng mining area, Shanxi Province, for the first time at home and abroad, the largescale commercial production of CBM, the major breakthrough made in the CBM development technology by horizontal …
Synthesis And Study Of Anticancer And Antioxidant Activities Of 2-Oxoquinoline Hydrazide Derivatives,
2023
Suez Canal University, Ismailia 41522, Egypt
Synthesis And Study Of Anticancer And Antioxidant Activities Of 2-Oxoquinoline Hydrazide Derivatives, Marwa Khalil Mohamed, Ezzeldin Mohamed S. Salem, Ibrahim Ahmed I. Ali
Makara Journal of Science
In this work, hydrazone, thiosemicarbazide, diamide, and dipeptide derivatives were prepared from the glycine and β-alanine hydrazide of 4-hydroxy-2-oxoquinoline. The desired derivative resulted from substitution, hydrazinolysis, condensation, and azide coupling reactions. The fabricated derivatives were screened for anticancer characteristics toward human’s colon carcinoma (HCT-116) cell line using the 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide viability assay, while antioxidant property was examined using an in vitro H2O2 scavenging method. The β-alanine hydrazide derivative 3a showed a remarkable IC50 value of 18.8 μg/mL, whereas its corresponding thiosemicarbazide 5b exhibited moderate activeness with an IC50 value of 26.89 μg/mL. Conversely, …
Potential Effect Of Phlorotannins In Brown Algae For Antidiabetic Therapy: Molecular Docking Approach,
2023
Medical Education Study Program, Faculty of Medicine, Universitas Hang Tuah Surabaya, Surabaya 60111, Indonesia
Potential Effect Of Phlorotannins In Brown Algae For Antidiabetic Therapy: Molecular Docking Approach, Melani Sinastri Renagupita, Rahadianto Rahadianto, Efyluk Garianto, Herin Setianingsih
Makara Journal of Science
This study aims to manifest the effect of the active compound phlorotannins in brown algae on decreasing insulin resistance by analyzing the predicted interaction between phlorotannins and protein tyrosine phosphatase 1B (PTP 1B) and estimating the pharmacokinetics and toxicity of the active compound for type 2 diabetes mellitus (DM) therapy. This type of research uses an in silico study to test the effect of using phlorotannins as an active compound in brown algae against PTP 1B inhibition. Starting from preparing materials, i.e., downloading the three-dimensional structure of phlorotannins via PubChem and PTP 1B via RSCB PDB (PDB 1A5Y), molecular docking …
The Potency Of Citrus Aurantiifolia Swingle And Sea Salt Solution As A Cleansing Agent For Edible Bird’S Nests,
2023
Faculty of Veterinary Medicine, Universitas Wijaya Kusuma Surabaya, Surabaya 60225, Indonesia
The Potency Of Citrus Aurantiifolia Swingle And Sea Salt Solution As A Cleansing Agent For Edible Bird’S Nests, Siti Gusti Ningrum, Adhitya Yoppy Ro Candra, Hana Cipka Pramuda Wardhani
Makara Journal of Science
The present study aimed to evaluate the potency of Citrus aurantiifolia Swingle and sea salt solution as a promising cleansing agent for edible bird’s nests (EBNs). Ascorbic acid, sodium, and chloride analyses of the C. aurantiifolia Swingle and sea salt solution were conducted using HPLC, ICP-OES, and titrimetry, respectively. The characteristics of physical samples and hydrogen peroxide detection were examined in this study. The reduction activity of the Citrus aurantiifolia Swingle and sea salt solution on the nitrite of 120 white EBNs was studied. This nitrite reduction activity was compared with the available method (standard), drinking water method, 6% C. …
