Offshore: Precommissioning Flowline Project Meets Objectives Offshore Angola

Flooding, cleaning, and gauging 11 production flowlines and nine water injection flowlines at water depths of 1,050-1,410 m (3,445-4,626 ft) presented a wide range of challenges for a predevelopment project offshore Angola. In addition to the technical demands of executing the deepwater project, multiple changes in the already-challenging mobilization schedule required matching a pre-commissioning equipment spread capable of providing the contracted flow rate and pressures to the available deck space of the various vessels under consideration. The success of the precommissioning project required a coordinated effort that involved multiple executions of deepwater remote subsea flooding, testing, and dewatering operations, as well as strong in-country assets, planning, and management. Flooding, cleaning, and gauging The deepwater development project produces four discoveries from an FPSO. Production began in June 2014, with capacity set at 160,000 b/d and with proven reserves of 500 MMbbl. As of May 2015,…



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