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Theory and practice of integrated pillarless coal production and methane extraction in multiseams oflow permeability

Yuan liang

Strategic Study of CAE 2009, Volume 11, Issue 5,   Pages 72-80

Abstract: text-align: justify;">This thesis, based on innovations and practices of methane drainage in multiseams of lowpermeability and complicated geology in Huainan mining district, systematically describes theories andkey technologies of integrated pillarless coal production and methane extraction with "Y" type ventilation system in multiseams of low permeability.

Keywords： coal seams of low-permeability     integrated pillarless     retained roadway     methane     coal production and    

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The Study of Fractures and Their Development Countermeasures on Taizhao Low-permeability Reservoir in

Zeng Lianbo,Liu Hongtao,Fang Baocai,Deng Haicheng

Strategic Study of CAE 2004, Volume 6, Issue 11,   Pages 73-79

Abstract:

The Putaohua reservoir in Taizhao area is the typical low-permeability reservoir which developed EWBy effect of modern stress field of approximately EW direction, the connectedness, opening and permeabilityAccording to geological condition and numerical simulation of oil pool, the development effects of similar low-permeabilityDue to development of fractures in low-permeability, the stratum cracking pressure reduces, which isThe artificial fractures are controlled by the modern stress field and natural fractures in fractured low-permeability

Keywords： fracture     low-permeability reservoir     development countermeasure    

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The Pressure Sensitivity of Fractures and Its Development Significance for Extra Low-permeability Sandstone

Zeng Lianbo,Shi Chengen,Wang Yongkang,Li Shuheng,Wan Xiaolong,Cui Panfeng

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 35-38

Abstract: : justify;">In order to analyse the pressure sensitivity feature of high-dip fractures in the extra low-permeabilitymatrix sample,  bearing natural fracture sample and bearing artifieial fracture sample of extra low-permeabilityThe experiment results indicate quite obvious pressure sensitivity feature of fractures in the extra low-permeability The bigger the fracture aperture and permeability,  the stronger the pressure sensitivitynbsp;The pressure sensitivity of fractures is of great significance to the development of the extra low-permeability

Keywords： fracture     pressure sensitivity     extra low-permeability sandstone reservoir     Ordos basin    

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Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 94-103 doi: 10.1007/s11705-011-1172-2

Abstract: Gas adsorption-induced coal swelling is a well-know phenomenon.Decreased matrix moisture content leads to coal shrinkage and thus the change of cleat porosity and permeabilityin the coal micropores forms multilayer of adsorbed molecules.of moisture intake by the coal matrix.adsorption changes the surface energy, which thus causes coal to swell.

Keywords： multilayer adsorption     vapour pressure     coal shrinkage     relative humidity     permeability    

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The present and future of low permeability oil and gas in China

Hu Wenrui

Strategic Study of CAE 2009, Volume 11, Issue 8,   Pages 29-37

Abstract:

Low permeability oil and gas resource of China is abundant and has aGreat exploration discoveries in low permeability sandstone, marine carbonate and volcanic rock fieldswere acquired and top international matching development technology in low permeability was created.Scale effective development in low permeability oil and gas reservoir was achieved.New proved reserves and remaining oil and gas reserves considered, low permeability oil and gas resource

Keywords： low permeability     oil and gas     exploration and development     mainstream     present and future     technology    

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Investigation on the performance and detoxification of modified low temperature coal tar pitch

Fengyan SUN, Yu LIU

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 315-321 doi: 10.1007/s11709-017-0386-x

Abstract: In this paper, studies on the modification on the low temperature coal tar pitch extracted from coalFirst, the low temperature coal tar pitch in liquid state is solidified with a higher softening pointThe modified coal tar pitch can achieve the standard pavement performance requirements.The detoxification mechanism is also studied, which further promote the applicability of modified lowtemperature coal tar pitch in the pavement constructions.

Keywords： coal tar pitch     low temperature     modification     detoxification    

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Status and challenges for oil and gas field development in China and directions for the development of corresponding technologies

Han Dakuang

Strategic Study of CAE 2010, Volume 12, Issue 5,   Pages 51-57

Abstract: these challenges and points out the directions for the development of technologies for high-water-cut, low-permeability

Keywords： oil and gas field development in China     technology series     high-water-cut oilfields     low-permeability    

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Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Jintai LIN, Anthony KU

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 235-239 doi: 10.1007/s11708-017-0518-y

Abstract: pollution, the Chinese government has announced a series of policies focusing on controlling emissions from coal“Ultra-low emission” (ULE) technologies have the potential to dramatically reduce emissions from coal-firedULE technologies can be an effective and economically competitive option for reducing the impacts of coal-fired

Keywords： air quality     atmospheric model     coal     Jing-Jin-Ji Region     PM2.5     ultra-low emissions    

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Practice on Ultra-low Emission and Energy Efficient Technologies in Coal-fired Power Plants

Yin-biao Chen,Yi Zhang,Wen Ling

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 377-383 doi: 10.15302/J-FEM-2016045

Abstract: and adopted multiple ultra-low emission and energy efficient technologies, striving to be an industryAs a result, coal-fired power plants have seen ultra-low emissions of air pollutants and record-highenergy efficiency, opening up a new era of more efficient and cleaner coal generation.By the end of 2015, Shenhua Group had had 45 ultra-low emission coal units, providing strong supportfor implementing of the national policy on ultra-low emission and energy efficient retrofit of coal-fired

Keywords： coal     power generation     ultra-low emission     energy efficiency    

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Synergistic utilization of coal and other energy – Key to low carbon economy

Weidou NI, Zhen CHEN

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 1-19 doi: 10.1007/s11708-010-0136-4

Abstract: In China, coal is a dominant component of energy mix, and it is expected to remain as such over the nextCoal is expected to be used even more in power generation.The direct combustion of coal already has been causing severe pollution and ecological degradation, andsynergistic utilization of coal, is proposed.different kinds of energy in smart energy grid (power, gas, heat, and water) are the keys to making China a low-carbon

Keywords： synergy     clean and efficient utilization of coal     coal-based polygenration     CO2 mitigation     energy    

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A critical review of ash slagging mechanisms and viscosity measurement for low-rank coal and bio-slags

Md Tanvir ALAM, Baiqian DAI, Xiaojiang WU, Andrew HOADLEY, Lian ZHANG

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 46-67 doi: 10.1007/s11708-020-0807-8

Abstract: Gasification or combustion of coal and biomass is the most important form of power generation today.In particular, this paper focuses on low-rank coal and biomass that have been receiving increased attentionslagging propensity of high-rank coals but cannot predict the slagging propensity and slag viscosity of low-rankmeasurement method, which can predict/measure the slagging propensity and slag viscosity correctly for all low-rankcoal and biomass ashes.

Keywords： slag     viscosity     biomass     low-rank coal     combustion     gasification    

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An experimental study on ignition of single coal particles at low oxygen concentrations

Wantao YANG, Yang ZHANG, Lilin HU, Junfu LYU, Hai ZHANG

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 38-45 doi: 10.1007/s11708-020-0692-1

Abstract: An experimental study on the ignition of single coal particles at low oxygen concentrations ( <21%) wasThe surface temperature ( ) and the center temperature ( ) of the coal particles were obtained from theobtained at a high value, the ignition delay time decreases more rapidly as increases at the lowIn addition, is less sensitive to while the ignition temperature is more sensitive to at a lowObservations of the position of flame front evolution illustrate that the ignition of a coal particle

Keywords： coal particles     low oxygen concentration     ignition     ignition temperature     ignition modes    

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Advances in the technology of explosion in fracturesused in low permeability reservoirs

Li Decong,Chen Li,Lin Yingsong, Ding Yansheng

Strategic Study of CAE 2010, Volume 12, Issue 9,   Pages 52-57

Abstract:

In this paper,the technical idea and the possible applications of this method were briefly introduced. Meanwhile, some related key technical problems were also particularly discussed. A series of research and corresponding advances achieved in recent years were reported in detail. In the end, some suggestion was made for further research.

Keywords： low permeability reservoirs     mechanics of explosion     explosion in fractures     security     simulation experiment    

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Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Anthony KU

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 564-564 doi: 10.1007/s11708-018-0551-5

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Title Author Date Type Operation

Theory and practice of integrated pillarless coal production and methane extraction in multiseams oflow permeability

Yuan liang

Journal Article

The Study of Fractures and Their Development Countermeasures on Taizhao Low-permeability Reservoir in

Zeng Lianbo,Liu Hongtao,Fang Baocai,Deng Haicheng

Journal Article

The Pressure Sensitivity of Fractures and Its Development Significance for Extra Low-permeability Sandstone

Zeng Lianbo,Shi Chengen,Wang Yongkang,Li Shuheng,Wan Xiaolong,Cui Panfeng

Journal Article

Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Journal Article

The present and future of low permeability oil and gas in China

Hu Wenrui

Journal Article

Investigation on the performance and detoxification of modified low temperature coal tar pitch

Fengyan SUN, Yu LIU

Journal Article

Innovative approach of low carbon and efficient utilization of coal resources: The polygeneration systemof a combination of the gasified coal gas and the pyrolyzed coal gas to form the synthetic gas

Kechang XIE, Fan LI

Journal Article

Status and challenges for oil and gas field development in China and directions for the development of corresponding technologies

Han Dakuang

Journal Article

Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Jintai LIN, Anthony KU

Journal Article

Practice on Ultra-low Emission and Energy Efficient Technologies in Coal-fired Power Plants

Yin-biao Chen,Yi Zhang,Wen Ling

Journal Article

Synergistic utilization of coal and other energy – Key to low carbon economy

Weidou NI, Zhen CHEN

Journal Article

A critical review of ash slagging mechanisms and viscosity measurement for low-rank coal and bio-slags

Md Tanvir ALAM, Baiqian DAI, Xiaojiang WU, Andrew HOADLEY, Lian ZHANG

Journal Article

An experimental study on ignition of single coal particles at low oxygen concentrations

Wantao YANG, Yang ZHANG, Lilin HU, Junfu LYU, Hai ZHANG

Journal Article

Advances in the technology of explosion in fracturesused in low permeability reservoirs

Li Decong,Chen Li,Lin Yingsong, Ding Yansheng

Journal Article

Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Anthony KU

Journal Article