Detection and understanding of natural CO2 releases in KwaZulu-Natal, South Africa

G. Johnson, N. Hicks, C.E. Bond, S. M.V. Gilfillan, D. Jones, Y. Kremer, R. Lister, M. Nkwane, T. Maupa, P. Munyangane, K. Robey, I. Saunders, J. Pearce, Z. K. Shipton, R. S. Haszeldine

Research output: Contribution to journalArticle

Abstract

Natural carbon dioxide (CO2) emanates from a number of sites along a N-S trend that coincides with a mapped fault near the village of Bongwana in KwaZulu-Natal, South Africa. In addition to the natural CO2 seeps a groundwater well drilled on a farm in Bongwana encountered CO2 and now leaks. Thus the Bongwana sites provide excellent analogues for failed CO2 storage under the two primary leakage scenarios; 1) abrupt leakage through injection well failure or leakage up an abandoned well, and 2) gradual leakage, through undetected faults, fractures or wells. Here we present results from preliminary fieldwork undertaken in September 2015.

LanguageEnglish
Pages3757-3763
Number of pages7
JournalEnergy Procedia
Volume114
DOIs
Publication statusPublished - 31 Jul 2017

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Abandoned wells
Farms
Groundwater
Carbon dioxide

Keywords

  • geological CO storage
  • leakage
  • monitoring
  • natural CO releases
  • water quality

Cite this

Johnson, G. ; Hicks, N. ; Bond, C.E. ; Gilfillan, S. M.V. ; Jones, D. ; Kremer, Y. ; Lister, R. ; Nkwane, M. ; Maupa, T. ; Munyangane, P. ; Robey, K. ; Saunders, I. ; Pearce, J. ; Shipton, Z. K. ; Haszeldine, R. S. / Detection and understanding of natural CO2 releases in KwaZulu-Natal, South Africa. In: Energy Procedia. 2017 ; Vol. 114. pp. 3757-3763.
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Johnson, G, Hicks, N, Bond, CE, Gilfillan, SMV, Jones, D, Kremer, Y, Lister, R, Nkwane, M, Maupa, T, Munyangane, P, Robey, K, Saunders, I, Pearce, J, Shipton, ZK & Haszeldine, RS 2017, 'Detection and understanding of natural CO2 releases in KwaZulu-Natal, South Africa' Energy Procedia, vol. 114, pp. 3757-3763. https://doi.org/10.1016/j.egypro.2017.03.1505

Detection and understanding of natural CO2 releases in KwaZulu-Natal, South Africa. / Johnson, G.; Hicks, N.; Bond, C.E.; Gilfillan, S. M.V.; Jones, D.; Kremer, Y.; Lister, R.; Nkwane, M.; Maupa, T.; Munyangane, P.; Robey, K.; Saunders, I.; Pearce, J.; Shipton, Z. K.; Haszeldine, R. S.

In: Energy Procedia, Vol. 114, 31.07.2017, p. 3757-3763.

Research output: Contribution to journalArticle

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AU - Jones, D.

AU - Kremer, Y.

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AU - Maupa, T.

AU - Munyangane, P.

AU - Robey, K.

AU - Saunders, I.

AU - Pearce, J.

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AU - Haszeldine, R. S.

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