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- Title
TECHNICAL AND ENVIRONMENTAL ISSUES IN THE PRODUCTION OF UNCONVENTIONAL SHALE GAS RESOURCES.
- Authors
Wopara, Onuoha F.
- Abstract
The current global upsurge in the development of unconventional shale gas and tight oil starting from the United States is resulting in increased economic benefits, including significant rise in job creation, lower energy costs and improved security, new sources of government revenue, and improved energy security. Also, there is a substantial decrease in greenhouse gas (GHG) emissions due to the development of this unconventional natural gas resource. Increasing technological advances in directional drilling, hydraulic fracturing and fracturing fluids have led to increases in unconventional shale gas development, raising questions about health impacts. This paper gives a brief review of the physics and thermodynamics of gas flow in such a low porosity and low to ultra-low permeability reservoirs. It also looks at effects of such phenomena a gas desorption/desorption process, non-Darcy flow, gas slippage (Klinkenberg effect), rock deformation caused by change in effective stress in ultra-low permeability reservoirs, hydraulic fracturing and environmental impact of flowback and produced fluids.
- Publication
Petroleum & Coal, 2018, Vol 60, Issue 6, p1050
- ISSN
1335-3055
- Publication type
Academic Journal