Use of temperature logs in coal seam gas reservoirs: Application to the Sydney Basin, Australia

Burra, Agi, Esterle, Joan S and Golding, Suzanne D (2015) Use of temperature logs in coal seam gas reservoirs: Application to the Sydney Basin, Australia. International Journal of Coal Geology, 143 68-77. doi:10.1016/j.coal.2015.03.014

Author Burra, Agi
Esterle, Joan S
Golding, Suzanne D
Title Use of temperature logs in coal seam gas reservoirs: Application to the Sydney Basin, Australia
Journal name International Journal of Coal Geology   Check publisher's open access policy
ISSN 0166-5162
Publication date 2015-04-01
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.coal.2015.03.014
Open Access Status
Volume 143
Start page 68
End page 77
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2016
Language eng
Abstract This study examines the relationship between borehole temperature logs and gas distribution in coal seams, both spatially and with depth. Temperature logs are often utilized in hydrogeology to monitor groundwater flow which can introduce methanogenic consortia into coal seams, resulting in the generation and accumulation of coal seam gases. Areas of hydraulic connectivity, characterized by open cleats and fractures, provide a pathway for the meteoric influx, whereas tight, mineralized sections of strata prohibit vertical flow and have the potential to trap coal seam gases, or to limit the influx of methanogens and the generation of secondary, biogenic methane. The combination of these concepts raises the possibility of utilizing temperature logs for mapping coal seam gas distributions and assisting exploration activities. Wireline temperature logs are inexpensive to obtain as part of any exploration, production or monitoring program, but provide information pertaining to flow regimes and in situ geological environments. A case study is presented from the Sydney Basin of Australia to demonstrate the types of analyses and interpretations relating to coal seam gas distribution that may be gleaned from temperature log datasets.
Keyword Temperature
Temperature logging
Coal seam gas
Heat flow
Sydney Basin
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Official 2016 Collection
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