• Corpus ID: 55241069

Towards a Road Map for Mitigating the Rates and Occurrences of Long-Term Wellbore Leakage

  title={Towards a Road Map for Mitigating the Rates and Occurrences of Long-Term Wellbore Leakage},
  author={Aurice and D B. and Usseault and ichard and Jiaqiang E and ackson and Aniel and Ac and onald},
Wellbore leakage, the seepage of natural gas through cement channels, casing annuli and behind the outermost casing string, is a problem reported across Canada. Wellbore leakage is a threat to the environment and public safety because of potential groundwater quality deterioration, contributions to greenhouse gas emissions and explosion risks if methane gas accumulates in inadequately ventilated areas. Leakage rates remain poorly quantified and remedial workovers are often challenging… 
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