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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Enhanced coal bed methane production and sequestration of CO₂ in unmineable coal seams

Calderon, Camilo E. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2010. / Title from document title page. Document formatted into pages; contains ix, 66 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references (p. 66).
22

Development of water production type curves for horizontal wells in coalbed methane reservoirs

Burka Narayana, Praveen Kumar. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2007. / Title from document title page. Document formatted into pages; contains ix, 53 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 50-52).
23

Solution to the Ukrainian Gas Crises and Achievement of Energy Efficiency of Ukraine through the Development of Coalbed Methane

Denisenko, Valeriya 27 July 2010 (has links)
Historically, Ukraine has been a net energy importer, needing oil and natural gas for the effective functioning of its industries and satisfaction of domestic needs. Ukraine's independence immediately followed the disintegration of the Soviet Union in 1991, resulting in its ultimate dependency on oil and natural gas imports from Russia. During the last few years, the parties had undergone a number of disagreements that led to the disruption of natural gas supply to Ukraine, and political instability within the country. The necessity to redevelop Ukraine's domestic energy industry and adjust it to an available domestic natural gas source became vitally important for the national government. The present project provides a summary of the Ukrainian energy policy dynamics from 2006-present time. It specifies current energy trends, renewable energy sources, alternatives, and provides recommendations for the Ukrainian government on how to integrate successful international experiences into the development of coalbed methane in the local environment. / McAnulty College and Graduate School of Liberal Arts; / Graduate Center for Social and Public Policy / MA; / Thesis;
24

The economic feasibility of enhanced coalbed methane recovery using CO2 sequestration in the San Juan Basin

Agrawal, Angeni 17 September 2007 (has links)
Carbon dioxide emissions are considered a major source of increased atmospheric CO2 levels leading towards global warming. CO2 sequestration in coal bed reservoirs is one technique that can reduce the concentration of CO2 in the air. In addition, due to the chemical and physical properties of carbon dioxide, CO2 sequestration is a potential option for substantially enhancing coal bed methane recovery (ECBM). The San Juan Fruitland coal has the most prolific coal seams in the United States. This basin was studied to investigate the potential of CO2 sequestration and ECBM. Primary recovery of methane is controversial ranging between 20-60% based on reservoir properties in coal bed reservoirs15. Using CO2 sequestration as a secondary recovery technique can enhance coal bed methane recovery up to 30%. Within the San Juan Basin, permeability ranges from 1 md to 100 md. The Fairway region is characterized with higher ranges of permeability and lower pressures. On the western outskirts of the basin, there is a transition zone characterized with lower ranges of permeability and higher pressures. Since the permeability is lower in the transition zone, it is uncertain whether this area is suitable for CO2 sequestration and if it can deliver enhanced coal bed methane recovery. The purpose of this research is to determine the economic feasibility of sequestering CO2 to enhance coal bed methane production in the transition zone of the San Juan Basin Fruitland coal seams. The goal of this research is two- fold. First, to determine whether there is a potential to enhance coal bed methane recovery by using CO2 injection in the transition zone of the San Juan Basin. The second goal is to identify the optimal design strategy and utilize a sensitivity analysis to determine whether CO2 sequestration/ECBM is economically feasible. Based on the results of my research, I found an optimal design strategy for four 160- acre spacing wells. With a high rate injection of CO2 for 10 years, the percentage of recovery can increase by 30% for methane production and it stores 10.5 BCF of CO2. The economic value of this project is $17.56 M and $19.07 M if carbon credits were granted at a price of $5.00/ton. If CO2 was not injected, the project would only give $15.55 M.
25

Strontium isotopes as tracers of water co-produced with coalbed natural gas in the Powder River Basin, Wyoming

Campbell, Catherine E. January 2007 (has links)
Thesis (M.S.)--University of Wyoming, 2007. / Title from PDF title page (viewed on Feb. 17, 2009). Includes bibliographical references (p. 69-74).
26

Membrane gas transfer of methane and carbon dioxide in submerged coal deposits

Cramer, Theodore A. January 2007 (has links)
Thesis (M.S.)--University of Wyoming, 2007. / Title from PDF title page (viewed on Feb. 24, 2009). Includes bibliographical references (p. 91-93).
27

Soil chemical and physical changes resulting from irrigation with coalbed natural gas co-produced water effects of soil amendments and water treatments /

Johnston, Christopher R. January 2007 (has links)
Thesis (M.S.)--University of Wyoming, 2007. / Title from PDF title page (viewed on June 16, 2008). Includes bibliographical references (p. 60-62).
28

Development of gas production type curves for coalbed methane reservoirs

Garcia Arenas, Anangela. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains viii, 86 p. : ill. (some col.), map. Includes abstract. Includes bibliographical references (p. 66-68).
29

The origin and fate of arsenic in coalbed natural gas produced water ponds

Sowder, Jonathan T. January 2009 (has links)
Thesis (M.S.)--University of Wyoming, 2009. / Title from PDF title page (viewed on June 18, 2010). Includes bibliographical references.
30

Assessing constructed wetlands for beneficial use of saline-sodic water

Kirkpatrick, Amber Denise. January 2005 (has links) (PDF)
Thesis (M.S.)--Montana State University--Bozeman, 2005. / Typescript. Chairperson, Graduate Committee: James W. Bauder. Includes bibliographical references (leaves 75-84).

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