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Development of hydraulic fracturing in high stress conditions in Australian underground coal mines

Conference Paper


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Abstract


  • Hydraulic fracturing has been used extensively in the petroleum and coalbed methane industries as a means of improving access to the reservoir and thereby enhancing production. In the Australian coal mining industry there has been an aversion to the use of hydraulic fracturing. One of the main reasons for the lack of application of this technology has been

    the perceived risk of damage to the strata and the resulting impact on future mining operations. A number of Australian mines are progressing toward areas where gas drainage is becoming increasingly difficult and these mines are seriously considering the use of hydraulic fracturing. In several cases where the use of hydraulic fracturing was trialled in mines

    operating in the Southern Sydney Basin the technique was found not to be effective due to the impact of wellbore damage. The damage caused by the high insitu stress conditions prevented the use of borehole straddle-packers, used to

    isolate sections of the borehole to enable hydraulic fracturing to be undertaken. This paper discusses the development of a method of borehole casing that enabled the application of hydraulic fracturing.

UOW Authors


Publication Date


  • 2008

Citation


  • Black, D. J. & Aziz, N. I. (2008). Development of hydraulic fracturing in high stress conditions in Australian underground coal mines. 16th Coal Congress of Turkey (pp. 1-17).

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4023&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3014

Abstract


  • Hydraulic fracturing has been used extensively in the petroleum and coalbed methane industries as a means of improving access to the reservoir and thereby enhancing production. In the Australian coal mining industry there has been an aversion to the use of hydraulic fracturing. One of the main reasons for the lack of application of this technology has been

    the perceived risk of damage to the strata and the resulting impact on future mining operations. A number of Australian mines are progressing toward areas where gas drainage is becoming increasingly difficult and these mines are seriously considering the use of hydraulic fracturing. In several cases where the use of hydraulic fracturing was trialled in mines

    operating in the Southern Sydney Basin the technique was found not to be effective due to the impact of wellbore damage. The damage caused by the high insitu stress conditions prevented the use of borehole straddle-packers, used to

    isolate sections of the borehole to enable hydraulic fracturing to be undertaken. This paper discusses the development of a method of borehole casing that enabled the application of hydraulic fracturing.

UOW Authors


Publication Date


  • 2008

Citation


  • Black, D. J. & Aziz, N. I. (2008). Development of hydraulic fracturing in high stress conditions in Australian underground coal mines. 16th Coal Congress of Turkey (pp. 1-17).

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4023&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3014