Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"unconventional gas"”.
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Characterization of tight and shale unconventional gas reservoirs using low field NMR
Unconventional petroleum resources, especially tight and shale reserves, constitute an increasing frontier of reserves additions as conventional production declines. In these sources, reservoir characteristics have significant value in reserve estimation and flow modelling. These characteristics …
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Unconventional gas exploration and regulating risks: what can Nigeria learn from western countries?
… therefore explore other energy options such as unconventional (shale) gas to remain relevant in the international oil and gas market. But whether unconventional (shale) gas can be exploited safely without causing severe damage to the environment and whether the environmental impact from fracking …
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Scanning Methods as Monitoring, Verification, and Accounting tools for CO₂ Sequestration in Unconventional Gas Reservoirs
Unconventional gas reservoirs in carbon dioxide sequestration activities is a relatively new and unexplored concept currently undergoing pilot scale testing. Sequestration has the potential for enhancing gas recovery while mitigating carbon dioxide to long term storage structures. Due to the …
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Measurements, Modeling and Analysis of High Pressure Gas Sorption in Shale and Coal for Unconventional Gas Recovery and Carbon Sequestration
In order to exploit unconventional gas and estimate carbon dioxide storage potential in shale formations and coal seams, two key questions need to be initially answered: 1) What is the total gas-in-place (GIP) in the subsurface reservoirs? 2) What is the exact ratio between bulk gas content and …
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A study of natural gas extraction in Marcellus shale
… has been used in the United States is natural gas. However, with the increased use of natural gas, conventional sources are being depleted rapidly. Due to the strong use of conventional gas sources people have turned to unconventional gas sources. Unconventional gas sources are deemed …
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An analysis of environmental regulatory compliance
… American energy supplies lie in a source of unconventional gas known as coalbed methane (CBM). As with any hydrocarbon resource, its exploration and production poses risks to the environment that can be mitigated through compliance to regulations. The primary environmental concern with CBM …
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Greenhouse Gas Emissions from Natural Gas Development in Western Canada: A Gap Analysis
The greenhouse gas (GHG) emissions of conventional and unconventional natural gas are primarily methane and carbon dioxide that are released in natural gas development activities. Addressing these emissions have gained attention because of recent climate commitments. Life Cycle Assessment (LCA) can …
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Development of gas production type curves for coalbed methane reservoirs
Coalbed methane is an unconventional gas resource that consists on methane production from the coal seams. The unique coal characteristic results in a dual-porosity system. CBM reservoir performance is also influenced by the interrelationship of reservoir, geologic, and operation parameters. …
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Impact of Langmuir isotherm on production behavior of CBM reservoirs
Coalbed Methane is an unconventional gas resource that consists of methane production from the coal seams. CBM reservoir performance is also influenced by the interrelationship of reservoir, geologic, and operation parameters. Coalbed methane production performance is considered complex and …
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Unconventional Natural Gas Development as a Reasonable Alternative for Energy Strategy and Policy: Implications for the People's Republic of China
This research argues that development of unconventional natural gas is a reasonable alternative for energy future of the People's Republic of China. Four major factors, including economic growth, social development, environmental constraints, and technological breakthroughs and foreign energy …
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Simulation and optimisation of hydraulic fracturing and flowback in unconventional reservoirs: A case study in the Cooper Basin, South Australia
… of hydraulic fracturing and flowback design in unconventional reservoirs using a case study from the Cooper Basin, South Australia. The Cooper Basin has a very large raw recoverable gas from unconventional gas resources estimated to be up to 187 trillion cubic feet. These resources are locked …
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Using oscillations to detect capillary condensation in MCM-41
In micro- and mesopores of tight, unconventional gas reservoirs, the net gas-in-place may contain significant contributions from adsorbed/condensed gas. In this study, we present a simple and novel oscillation-based method to measure the net gas-in-place with capillary condensation. This method was …
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Impacts of non-renewable resource extraction on shrubland songbird nest success and abundance
… experiencing prolific development of shale gas. Both of these practices alter local habitats and the landscape, and it is essential to understand their impacts on shrubland songbirds in order to inform conservation efforts for this declining guild. Research for this thesis was composed of …
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Structure Segmentation and Transfer Faults in the Marcellus Shale, Clearfield County, Pennsylvania: Implications for Gas Recovery Efficiency and Risk Assessment Using 3D Seismic Attribute Analysis
The Marcellus Shale has become an important unconventional gas reservoir in the oil and gas industry. Fractures within this organic-rich black shale serve as an important component of porosity and permeability useful in enhancing production. Horizontal drilling is the primary approach for …
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Three Essays on the Economics of Hydraulic Fracturing
… used in the USA to economically extract natural gas and oil from newly discovered shale plays. Despite new, more severe, and long term impacts of hydraulic fracturing compared to conventional drilling, regulatory practices are mostly implemented by states that regulate with older regulations that …
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Study of the organic content and mineralogy effects on the acoustic properties of the Niobrara Formation, Denver Basin
… fracturing allowed for the expansion of unconventional gas and oil production from Niobrara chalk and marl intervals across the Greater Wattenberg Area (GWA). The Niobrara carbonate system in the Denver Basin contains a TOC range of 1-8 wt.%. Additionally, GWA is associated with a …
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Regulating the disclosure of chemical additives in the hydraulic fracturing process: a comparative analysis between Canadian and South African Law
… is a stimulation technique used in the oil and gas industry to create additional permeability through creating fractures in an unconventional gas reservoir. Desktop estimates predict that shale deposits beneath the semi-desert Karoo region in South Africa could hold a reserve of up to 450 …
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The Water-Energy Nexus for Hydraulic Fracturing
… waste generation and disposal. The rapid rise of unconventional natural gas and oil production through the combined processes of horizontal drilling and hydraulic fracturing have shifted the energy dynamic in the United States. Concurrently, the rising utilization of unconventional gas and oil …
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Production performance evaluation of energized fracturing fluids in unconventional formations
Pursuit of unconventional gas and oil has prompted the development and adoption of innovative fracturing solutions. Energized fracturing is one promising technology that can be an effective alternative to mainstream slickwater or hybrid fracturing fluids in many applications. Yet, field use of …
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Quantitative geometric model of connected carbonaceous material in mudrocks
Unconventional gas resources have become important as an environment- friendly source of fuel. It is important to understand the pore level geometries of grains and voids in mudrocks in order to understand the flow potential of gas from these rocks. Recent observations of nanopores within …
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