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Articles 631 - 660 of 1009
Full-Text Articles in Sustainability
Development Of Deep Geothermal Energy And Its Influence On Geothermal Water Flow Field: Taking The Development Of Deep Geothermal Energy In Lankao County For An Example, Song Qianjin, Wang Gang, Xu Yichuan, Cheng Lei
Development Of Deep Geothermal Energy And Its Influence On Geothermal Water Flow Field: Taking The Development Of Deep Geothermal Energy In Lankao County For An Example, Song Qianjin, Wang Gang, Xu Yichuan, Cheng Lei
Coal Geology & Exploration
In order to study the influence of deep geothermal energy development on the flow field of thermal reservoir, deep geothermal energy development in Lankao County is selected as the research object. The geological structure and regional structure of the study area since Cenozoic are analyzed, and the of geothermal exploitation and existing problems in the area are investigated. According to the types of geothermal energy, the characteristics of the Quaternary(Q), Neogene Minghuazhen Formation(N2) and Neogene Guantao Formation(N1) are analyzed. The conditions of fault distribution, thermal reservoir development and water-resisting boundary in the area are found out …
Numerical Simulation Of The Influence Of No-Flow Recharge Aquifer On Cbm Drainage, Liu Bing, Zhang Songhang, Tang Shuheng, Wang Pengfei, Zhai Jiayu, Ji Chaoqi
Numerical Simulation Of The Influence Of No-Flow Recharge Aquifer On Cbm Drainage, Liu Bing, Zhang Songhang, Tang Shuheng, Wang Pengfei, Zhai Jiayu, Ji Chaoqi
Coal Geology & Exploration
Coalbed methane wells in southern Qinshui Basin have the characteristics of high water yield and low gas yield, while some wells present high water yield and high gas yield characteristics. Generally speaking, the high water yield of coalbed methane wells is mostly related to the aquifer with recharge. In this case, based on the coal reservoir geological condition of Shizhuangnan Block and the actual situation of coalbed methane vertical well production, the influence of non-flow recharge aquifer on reservoir pressure variation and CBM outflow rule was simulated by using a three-dimensional coal reservoir simulation software (SIMEDWin) with gas and water …
Study On The Main Controlling Geological Factors Of High Yield Deep Cbm In Southern Yanchuan Block, Gao Yuqiao, Li Xin, He Xipeng, Chen Zhenlong, Chen Gang
Study On The Main Controlling Geological Factors Of High Yield Deep Cbm In Southern Yanchuan Block, Gao Yuqiao, Li Xin, He Xipeng, Chen Zhenlong, Chen Gang
Coal Geology & Exploration
The Southern Yanchuan Block belongs to a deep, high-rank coalbed methane(CBM) reservoir. Due to the influence of geological conditions, the single well productivity varies greatly. Researching on the main controlling geological factors and their changing mechanism of CBM accumulation, combined with the dynamic data of CBM development, the main controlling geological factors of the CBM well enrichment and high production are analyzed. The research results show that the productivity of the gas field is controlled by the geological factors of “tectonic, hydrology, coal structure”. Tectonic restricts the accumulation of CBM; the degree of salinity characterizes affects the preservation of CBM; …
New Mathematical Model And Key Parameters Of Capillary Pressure Curves Of High-Rank Coal Samples, Chen Ke, Tang Lei, Yin Chao, He Wei, Zhang Wei, Quan Zheng
New Mathematical Model And Key Parameters Of Capillary Pressure Curves Of High-Rank Coal Samples, Chen Ke, Tang Lei, Yin Chao, He Wei, Zhang Wei, Quan Zheng
Coal Geology & Exploration
Capillary pressure is an important parameter that affects the occurrence and development of coalbed methane. In order to establish an effective mathematical model to characterize capillary pressure curves of high-rank coalbed methane reservoirs, coal samples from No.3 coal seam in southern Qinshui Basin was taken as the research object, high-pressure mercury intrusion experiments were carried out, and the adaptability of the typical mathematical models of the capillary pressure curve currently in common use are systematically evaluated. Then a new mathematical model with higher fitting degree for high-rank coal is established. The results show that capillary pressure curves of 6 coal …
3d Geological Model Construction And Error Analysis Of Intelligent Mining Working Face, Wang Xinmiao, Han Baoshan, Song Tao, Shen Kai, Yue Hui, Lei Xiaoyu
3d Geological Model Construction And Error Analysis Of Intelligent Mining Working Face, Wang Xinmiao, Han Baoshan, Song Tao, Shen Kai, Yue Hui, Lei Xiaoyu
Coal Geology & Exploration
The complexity of geological conditions is one of the key issues affecting the further development of current intelligent mining, and there is an urgent need to build a high-precision 3D geological model of the mining face. This article analyzes the construction method of the intelligent mining geological model, and takes an intelligent working face of Huangling No.1 Mine as an example, combines all the geological exploration data of the working face, and uses the TIM-3D modeling software to construct the initial static model and the working face respectively. The dynamic model of the working face is equipped with a transparent …
Geochemical Characteristics And Genesis Of Coalbed Methane In Baode Area, Li Yangbing, Zeng Lei, Hu Weiqiang, Chen Xin, Ma Litao, Liu Cheng, Huang Ying, Qiao Fang
Geochemical Characteristics And Genesis Of Coalbed Methane In Baode Area, Li Yangbing, Zeng Lei, Hu Weiqiang, Chen Xin, Ma Litao, Liu Cheng, Huang Ying, Qiao Fang
Coal Geology & Exploration
In order to find out the geochemical characteristics and origins of coalbed methane(CBM)in Baode area, coal, CBM and water samples were collected, gas component analysis, quality detection of CBM well-produced water and stable isotope analysis were carried out. The results show that CH4 is the main hydrocarbon gas in CBM composition and its volume fraction ranges from 88.60% to 97.59%; a small amount of ethane is contained, and the volume fraction is only 0.01%-0.14%. The drying coefficient is greater than 0.99, the CBM belongs to the extremely dry CBM. The non-hydrocarbon components mainly contain CO2 and N2 …
Study On Mesozoic Magmatic Intrusion And Paleozoic Multi-Mineral Genesis Mechanism In Huanghebei Coalfield，Shandong Province, Wang Huaihong, Shen Lijun, Wang Dongdong, Zhu Yuzhen, Li Zengxue, Wang Yongjun, Mao Qiang
Study On Mesozoic Magmatic Intrusion And Paleozoic Multi-Mineral Genesis Mechanism In Huanghebei Coalfield，Shandong Province, Wang Huaihong, Shen Lijun, Wang Dongdong, Zhu Yuzhen, Li Zengxue, Wang Yongjun, Mao Qiang
Coal Geology & Exploration
Accumulation of various minerals is common in strata, especially in areas invaded by magma, which is more conducive to the generation and preservation of various minerals and greatly improves the exploration benefit and development value of mineral resources. Taking Huanghebei Coalfield in Shandong Province as an example, this paper studies the genesis mechanism of Mesozoic rock intrusion and Paleozoic multiple minerals(coal, coal-bed methane, coal-measure shale gas and rich iron ore). Research shows that: Huanghebei Coalfield Carboniferous-Permian Period tectonic conditions and sedimentary environment are conducive to the development of coal seam, and coal seam distribution in the plane is characterized by …
Evaluation Of The Development Potential Of The Coalbed Methane Resources In Mining Area Based On Ahp-Entropy Method, Jia Zhichao, Huang Huazhou, Huang Shaobo, Zhou Yu, Wang Bo
Evaluation Of The Development Potential Of The Coalbed Methane Resources In Mining Area Based On Ahp-Entropy Method, Jia Zhichao, Huang Huazhou, Huang Shaobo, Zhou Yu, Wang Bo
Coal Geology & Exploration
The development of coalbed methane(CBM) in mining area is conductive to the efficient mining of pressure relief CBM in mining panels, and it reduces the risk level of underground gas. However, the difference in geological and coal mining conditions makes the development effect of surface wells quite different. Therefore, it is of guiding significance to evaluate the pre-mining panel selection. In order to explore an efficient selection method of CBM in mining areas, a complete evaluation system of CBM development potential in mining area is established by building one vote veto system and evaluation index system, combining analytic hierarchy process(AHP) …
Discussion On Roof Water Loss Control Method Of Coal Seam Based On Pre-Splitting Grouting Reformation(P-G), Zhao Chunhu, Wang Hao, Jin Dewu
Discussion On Roof Water Loss Control Method Of Coal Seam Based On Pre-Splitting Grouting Reformation(P-G), Zhao Chunhu, Wang Hao, Jin Dewu
Coal Geology & Exploration
In view of the technical requirements of roof water disaster prevention and water resources collaborative protection faced by coal mining in western coal mining area, this paper puts forward a technical idea of roof water loss control based on pre-splitting grouting reformation(P-G) according to the strain strength theory of material mechanics and the statistical results of mining fracture zones of different overburden types. The basic principle is that the continuous bedrock layer will be fractured into discontinuous rock layers by fracturing technology, and by weakening the “tip effect” of upward expansion of mining induced water flowing fracture in hard rock …
Forward Simulation Of Fault Detection By Transmitting Channel Wave In Thin Alternating Coal Seams, Ma Yanlong
Forward Simulation Of Fault Detection By Transmitting Channel Wave In Thin Alternating Coal Seams, Ma Yanlong
Coal Geology & Exploration
In order to study the feasibility of the fault detection by transmitting channel wave in thin alternating coal seams of southwestern region, a representative area was selected, and a coal mine in Panzhihua Coal Industry Group was selected as the research object. A three-dimensional geological model with three alternating coal seams containing three partings, three partings and faults and without parting was established based on actual geological data. Through the forward simulation and analysis of the characteristics of the wave field and the frequency dispersion of the channel waves of the three dimensional elastic wave, the validity of the amplitude …
Lesson Plan - Land Use Game: Complex Decisions, Center For Urban Resilience
Lesson Plan - Land Use Game: Complex Decisions, Center For Urban Resilience
Module 02: Land Use
The purpose of this lesson is for students to simulate decisions that may influence land use patterns in a city. To do this, the students will play a board game that has both mandated Policy Event cards and decision cards that students control. The decision cards consist of three potential options and each option has different monetary, ecological, and social consequences. The students play the game in groups of two to three and then discuss the impacts of their decisions on the future of their city. The lesson concludes with a discussion of how well the data collection went and …
Powerpoint - Land Use, Center For Urban Resilience
Powerpoint - Land Use, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Land Use Game, Center For Urban Resilience
Action Plan Rubric, Center For Urban Resilience
Action Plan Rubric, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Decisions Cards, Center For Urban Resilience
Decisions Cards, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Game Board, Center For Urban Resilience
Policy Event Cards, Center For Urban Resilience
Policy Event Cards, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Land Use Game Instructions And Play, Center For Urban Resilience
Land Use Game Instructions And Play, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Lesson Plan - Biophysical And Social Drivers, Center For Urban Resilience
Lesson Plan - Biophysical And Social Drivers, Center For Urban Resilience
Module 02: Land Use
In this lesson, students will learn about the various biophysical and social drivers which impact land use in detail. They will then use their knowledge about urban land use as a class to explore various data sources (maps, charts, figures, etc.) to determine how these drivers have influenced land use in New Orleans. Students will then relate their understanding of the case study to the Ecological Services Model.
Powerpoint - New Orleans: A Case Study, Center For Urban Resilience
Powerpoint - New Orleans: A Case Study, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Reading - Social And Biophysical Drivers Of Urban Ecosystems, Center For Urban Resilience
Reading - Social And Biophysical Drivers Of Urban Ecosystems, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
New Orleans Elevation Handout, Center For Urban Resilience
New Orleans Elevation Handout, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Student Pages, Center For Urban Resilience
Student Pages - Answer Key, Center For Urban Resilience
Student Pages - Answer Key, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Lesson Plan - Urban Sprawl, Center For Urban Resilience
Lesson Plan - Urban Sprawl, Center For Urban Resilience
Module 02: Land Use
The purpose of this lesson is for students to explore urban sprawl. They will first analyze urban growth patterns at the national level and then compare the density changes associated with various urban areas in the United States. Finally, they will research information about their own metropolitan area to conclude if it is currently contributing to urban sprawl and suggest how land use policies may have contributed to its current state.
Powerpoint - Us Urbanization, Center For Urban Resilience
Powerpoint - Us Urbanization, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Example - Atlanta, Center For Urban Resilience
Example - Atlanta, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Example - Boston, Center For Urban Resilience
Example - Boston, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Example - Dallas, Center For Urban Resilience
Example - Dallas, Center For Urban Resilience
Module 02: Land Use
No abstract provided.
Example - San Francisco, Center For Urban Resilience
Example - San Francisco, Center For Urban Resilience
Module 02: Land Use
No abstract provided.