Surface Casing Vent Flow Remediation

well integrity assessment project, coal seam gas wellhead being remediated

Project Overview

A wellhead surface casing vent flow test identified shallow gas migration contained within the wellhead A-section of a soon to be decommissioned well. JJM personnel completed injectivity testing and extended build up monitoring of the SCVF, a technology review and options analysis was then completed by our multi discipline team to evaluate suitability of various remediation technologies.

Project Details

Scope of Work

  • Technology review

  • Preparation of operational program

  • Pre operation risk assessment

  • Contractor management onsite

Key Challenges

  • Surface Casing Vent Flow remediation

  • Regulatory compliance requirements

  • New technology material qualification

Outcome

Technology solutions for the monitoring and remediation of SCVF were investigated and applied, including state of the art non-shrinking exothermic reaction resin. With successful SCVF remediation achieved.

Next
Next

144 Well Decommissioning Campaign