Who Dat Project—Deepwater Subsea Production of-Light and Heavy Oil

摘要

Plans were developed to produce multiple deepwater reservoirs with vastly different fluid properties from a subsea development in 3,100 ft of water in the Gulf of Mexico. Diagnostic and flow-assurance (FA) testing of the different-density oils addressed viscosity including non-Newtonian, wax, asphaltene, and hydrate behavior; downhole and flowline commingling; and fluid-compatibility tests. Provisions for pigging and a chemical-treatment program were added for extra assurance. A larger-sized oil-export line was selected to allow sufficient capacity for blended or heavy oils after restart.