Integrated abandonment solution saved 3 days, cut costs
An operator working in the North Sea was abandoning one of their suspended wells, which required removing annuli well fluids and placing a final surface cement plug across all annuli prior to cutting and removing the wellhead.
After being contacted for a cost-effective solution to perform these plug and abandonment operations, Baker Hughes, a GE company (BHGE), proposed the wellhead abandonment straddle packer (WASP) system, followed by an abrasive cutting tool to complete the operation from a light well intervention vessel (LWIV). This would provide the operator with large financial savings compared to a rig-based solution.
This BHGE solution required an integrated approach, pulling team members from multiple disciplines including wellbore intervention, tubingconveyed perforating, and cementing. BHGE project managers lead the operation, working closely with the LWIV and wellhead cutting third-party vendors to provide an integrated solution. Early customer engagement and planning was crucial to the success of the operation. BHGE collaborated with all parties to improve efficiency and reduce risks by limiting operational time at the well location.
After the well was prepared for entry, the operator ran a scraper and dummy perforating gun assembly to confirm the packer setting depths were clear of debris and the lower perforating guns could reach the targeted depth.
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