Subsea Processing Systems Expanding in Brazil
The advent of reliable subsea processing has taken a considerable time to develop. For a few years now, it has been looked at as a vital solution for deepwater O&G development. Subsea processing technology was first developed to overcome challenges posed by extremely deep wells but in time it has become a proven solution in mature fields by decreasing the amount of equipment on the surface, therefore lowering operational costs and of course by boost diminishing production from mature wells, normally through re-injection of fluids, such as water, into the wells to increase the pressure inside the well. It is also an important solution in locations where harsh surface weather conditions make it extremely risky to have an anchored production plant.
Improving Production Using Subsea Separation Boosting
Subsea gas-liquid separation coupled with liquid boosting can be an effective means of oil reservoir exploitation. Despite advances, multiphase pumping technology remains limited in its capabilities. Dynamic (centrifugal and helico-axial) pumps function with reasonable efficiency for single-phase, low-viscosity liquids. However, they become very inefficient when a high-viscosity liquid is combined with high percentages of free gas. While use of multiphase pumps is in many instances an effective solution, special consideration must be taken when challenging conditions exist such as are found in deeper water or with long tieback distances, or when heavy-oil production is involved. More effective oil reservoir exploitation can be achieved using subsea separation coupled with liquid boosting.
Aker Solutions Showing High Subsea Product Diversity in Brazil
With major subsea contracts signed with Petrobras in 2009, the future looks bright for Aker Solutions and their range of subsea products and solutions in Brazil.In November 2009, Aker Solutions do Brasil signed two contracts to supply subsea connection systems for the P-55 platform, which will operate at the Roncador field offshore Brazil. The contracts were signed with Petrobras and Subsea 7. For Petrobras the contract involves three Plets (pipeline-end termination systems), two rigid jumpers, tools and accessories. For Subsea 7 the contract involved two sets of 12" Plets, one set of 12" ILT (t-shaped pipeline), tools and accessories. The values for each contract were not disclosed.