Mature and Brownfield Well Support

TwinHorizon Solutions provides specialized support for operators managing ageing wells, where legacy well designs, ageing barriers, and evolving regulatory requirements can create complex integrity challenges. Services include:

• Development of practical integrity management and remediation strategies to support the continued safe operation of wells, including solutions to “catch-22” barrier situations where no functional barriers remain, yet barriers are normally required to safely repair or replace failed barriers.
• Assessment of well integrity status and associated risks across ageing and brownfield well portfolios.
• Identification and evaluation of well barrier conditions, including degraded, compromised, or missing barriers.
• Diagnostics and management strategies for sustained annulus pressure (SAP), including investigation of potential causes, remediation options (prioritizing rigless solutions), and guidance for cases where operators may decide to manage or live with SAP under controlled monitoring conditions.