NDLI: Optimization of Water Pumping and Injection for Underground Coal Gasification in the Meiguiying Mine, China

Content Provider	Springer Nature Link
Author	Dong, Donglin Zhao, Mingdong Lin, Gang Zhao, Weijun Zhang, Kai Li, Neng
Copyright Year	2016
Abstract	The Meiguiying mine is a famous underground coal gasification (UCG) mine in China, but there has been a potential safety hazard since it began operating, that groundwater in the overlying aquifer might enter the mine and even extinguish the gasifier. A 3-D hydrogeological model was developed to explore the characteristics of the seepage field of the aquifer and determine an optimal water pumping and injection option for the UCG. The results indicate that more attention should be paid to control induced fractures of the roof due to the increasing water level of the aquifer, and that a pumping rate of 160 m$^{3}$/day would decrease the water level to a reasonable elevation. Moreover, to maintain the groundwater table and mine safety, 120 m$^{3}$/day was recommended as a reasonable and economical recharge (re-injection) rate in the study area.Die Meiguozhiying Mine ist eine berühmte unterirdische Kohlevergasunganlage (UCG) in China. Sie hat aber ein potentielles Sicherheitsrisiko, da das Grundwasser aus dem darüber liegenden Grundwasserleiter durchtreten könnte und den Kohlevergaser löschen könnte. Ein dreidimensionales hydrogeologisches Modell wurde entwickelt, um die Eigenschaften der Versickerung Bereich des Grundwasserleiters zu erkunden und zu bestimmen. Daraus wurde ein optimaler Pumpenbetrieb für die UCG abgeleitet. Die Ergebnisse zeigen, dass den induzierten Frakturen mehr Aufmerksamkeit gewidmet werden sollte. Eine Fördermenge von 160 m$^{3}$/day würde den Wasserstand auf einen angemessenen Pegel verringern. Darüber hinaus wird in der Studie empfohlen eine Infiltration von 120 m$^{3}$/day aufrecht zu erhalten damit der Grundwasserspiegel gehalten werden kann und damit die Sicherheit auch die Sicherheit der Mine.La mina Meiguiying es una importante mina de gasificación de carbón subterráneo (UCG) en China, pero desde que comenzó a operar, ha habido un potencial riesgo de que el agua subterránea del acuífero suprayacente, entre en la mina e incluso extinga el gasificador. Se desarrolló un modelo hidrogeológico 3-D para explorar las características del campo de la filtración del acuífero y determinar las opciones óptimas para bombeo e inyección de agua para la UCG. Los resultados indican que debería prestarse más atención a controlar las fracturas inducidas en el techo debido al incremento del nivel del agua y que una velocidad de bombeo de 160 m$^{3}$/day debería decrecer el nivel de agua hasta una elevación razonable. Además, para mantener el freático y la seguridad en la mina, se recomiendan 120 m$^{3}$/day como una velocidad de recarga (re-inyección) razonable y económica para el área de estudio.玫瑰营井是中国有名的煤炭地下气化井田,矿井自运行以来一直存在上覆含水层水涌入矿井甚至熄灭气化炉的安全隐患。为此,开发了三维水文地质模型以研究含水层渗流特征和优化气化井田的抽水、注水方案。为维持合理潜水位高度和保证煤炭地下气化安全运行,应控制含水层水位抬升引起的顶板裂隙,能使含水层水位降至合适水平优化抽水量为160 m$^{3}$/d,建议回注水量为120 m$^{3}$/d。
Starting Page	398
Ending Page	404
Page Count	7
File Format	PDF
ISSN	10259112
Journal	Mine Water and the Environment
Volume Number	35
Issue Number	3
e-ISSN	16161068
Language	Chinese
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-02-09
Publisher Institution	International Mine Water Association (IMWA)
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogeological model Seepage field Optimization drainage options Water injection Geology Water Quality/Water Pollution Hydrogeology Mineral Resources Ecotoxicology Industrial Pollution Prevention
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Geotechnical Engineering and Engineering Geology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Column Kinetic Tests Assessing Geochemical Behavior of Mine Wastes in the Jerada Coal District (Morocco)

Geothermal Water at a Coal Mine: From Risk to Resource

Hydrochemical Prediction of Mine Water Inrush at the Xinli Mine, China

Optimization of Mine Drainage Capacity Using FEFLOW for the No. 14 Coal Seam of China’s Linnancang Coal Mine

Chemical Characteristics and Utilization of Coal Mine Drainage in China

Hydraulic and Thermal Modelling of an Underground Mining Reservoir

Quantitative Prediction of Water Volumes Within a Coal Mine Underlying Limestone Strata Using Geophysical Methods

Tailings Weathering and Arsenic Mobility at the Abandoned Zgounder Silver Mine, Morocco

Risk Assessment of Water Inrush from Aquifers Underlying the Gushuyuan Coal Mine, China

Optimization of Water Pumping and Injection for Underground Coal Gasification in the Meiguiying Mine, China

Similar Documents

Column Kinetic Tests Assessing Geochemical Behavior of Mine Wastes in the Jerada Coal District (Morocco)

Geothermal Water at a Coal Mine: From Risk to Resource

Hydrochemical Prediction of Mine Water Inrush at the Xinli Mine, China

Optimization of Mine Drainage Capacity Using FEFLOW for the No. 14 Coal Seam of China’s Linnancang Coal Mine

Chemical Characteristics and Utilization of Coal Mine Drainage in China

Hydraulic and Thermal Modelling of an Underground Mining Reservoir

Quantitative Prediction of Water Volumes Within a Coal Mine Underlying Limestone Strata Using Geophysical Methods

Tailings Weathering and Arsenic Mobility at the Abandoned Zgounder Silver Mine, Morocco

Risk Assessment of Water Inrush from Aquifers Underlying the Gushuyuan Coal Mine, China

Optimization of Water Pumping and Injection for Underground Coal Gasification in the Meiguiying Mine, China