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Directional drilling in unstable environments

Journal Article


Abstract


  • Directional drilling has been established in the coal industry as a viable means of gas drainage, exploration and water management. But the environment in and around coal seams is not always conducive to stable conditions while drilling and borehole stability after the drilling has been completed. This paper identifies the conditions which cause unstable drilling conditions and the various means which are used to attempt to manage or bypass those conditions. Ultimately, equipment does become bogged in these adverse environments and requires recovery by over-coring. © 2014.

UOW Authors


  •   Hungerford, Frank (external author)
  •   Ren, Ting

Publication Date


  • 2014

Citation


  • Hungerford, F. & Ren, T. X. (2014). Directional drilling in unstable environments. International Journal of Mining Science and Technology, 24 (3), 397-402.

Scopus Eid


  • 2-s2.0-84901194550

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2360

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 397

End Page


  • 402

Volume


  • 24

Issue


  • 3

Place Of Publication


  • Netherlands

Abstract


  • Directional drilling has been established in the coal industry as a viable means of gas drainage, exploration and water management. But the environment in and around coal seams is not always conducive to stable conditions while drilling and borehole stability after the drilling has been completed. This paper identifies the conditions which cause unstable drilling conditions and the various means which are used to attempt to manage or bypass those conditions. Ultimately, equipment does become bogged in these adverse environments and requires recovery by over-coring. © 2014.

UOW Authors


  •   Hungerford, Frank (external author)
  •   Ren, Ting

Publication Date


  • 2014

Citation


  • Hungerford, F. & Ren, T. X. (2014). Directional drilling in unstable environments. International Journal of Mining Science and Technology, 24 (3), 397-402.

Scopus Eid


  • 2-s2.0-84901194550

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2360

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 397

End Page


  • 402

Volume


  • 24

Issue


  • 3

Place Of Publication


  • Netherlands