en.Wedoany.com Reported - French engineering, consulting, and project management company DORIS is collaborating with Perenco's Brazilian subsidiary to advance the pre-FEED and FEED advanced stages of the revitalization and electrification project for the PCH-1 and PCH-2 platforms in the Cherne field, Campos Basin. These two topsides, weighing approximately 15,000 to 18,000 tons each, were commissioned in 1984 and have been shut down since 2020. DORIS stated that beyond restoring production, the electrification of these facilities directly addresses the core challenge of optimizing the energy footprint of mature fields. This is a complex brownfield project and one of the most tangible ways to retrofit existing assets to make conventional energy cleaner.
In September 2025, Perenco announced a $250 million revitalization plan to restart the PCH-1 and PCH-2 platforms, targeting a production increase to 15,000 barrels of oil per day and the extraction of over 50 million barrels of reserves. The plan was announced shortly after the company completed the acquisition of the Cherne and Bagre field interests from Petrobrás in August 2025. The restart plan is expected to take two years and is divided into three interrelated phases, with operational safety as the primary guideline.
The first phase has already commenced, involving a comprehensive restoration of the integrity of the PCH-1 and PCH-2 platforms and their associated systems and equipment, including replacing or refurbishing turbines and water treatment systems, modernizing metering systems, and maintaining or replacing topside flowlines. The second phase plans to install a new 10-inch pipeline, 27 kilometers long, connecting the PCH-1 platform to the Pargo platform. From Pargo, production will be transported via existing export pipelines to the Pargo floating storage and offloading unit. As part of the water injection system modernization plan, Perenco will also install a water injection pipeline between the PCH-1 and PCH-2 platforms. The third phase will focus on well intervention and recompletion to restore production, including restarting 36 wells, with 21 workover operations, and evaluating the optimal application of gas lift or downhole electric submersible pumps.
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