Measurements of gas-liquid relative permeability of Queensland coals
Poster
Paper/Presentation Title | Measurements of gas-liquid relative permeability of Queensland coals |
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Presentation Type | Poster |
Authors | Ge, Lei (Author), Khan, Chawarwan (Author), Rufford, Thomas E. (Author) and Rudolph, Victor (Author) |
Journal or Proceedings Title | Abstracts of AAPG Asia Pacific Geoscience Technology Workshop (GTW) Opportunities and Advancements in Coal Bed Methane in the Asia Pacific |
Year | 2015 |
Place of Publication | Tulsa, OK United States |
Web Address (URL) of Paper | http://www.searchanddiscovery.com/abstracts/pdf/2015/90234gtw/abstracts/ndx_ge.pdf |
Conference/Event | AAPG Asia Pacific Region, Geoscience Technology Workshop (2015) |
Event Details | AAPG Asia Pacific Region, Geoscience Technology Workshop (2015) Event Date 12 to end of 13 Feb 2015 Event Location Brisbane, Australia |
Abstract | The feature of water-gas two-phase flow through coal seams determines the water depletion and gas production associated in coal seam gas recovery. Therefore, coal relative permeability is crucial for studies of two-phase flow behaviour in coal, which is greatly influenced by water/gas saturation and coal ranks. In this study, a permeability model incorporated with cleat size distribution and cleat tortuosity was developed to predict the relative permeability of gas and water in coals. An unsteady-state method has been applied to investigate the relative permeability of gas and water in coal samples from Surat Basin through water replacement with gas. A series of relative permeability curves for selected coals have been obtained. The measured pore size distribution, porosity and irreducible water saturation percentage are used to correlate the permeability of gas and water with gas saturation by modelling. |
Keywords | Permeability; coal-seam gas; water; gas; unsteady-state method |
ANZSRC Field of Research 2020 | 401907. Petroleum and reservoir engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3z31/measurements-of-gas-liquid-relative-permeability-of-queensland-coals
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