National Oilwell VarcoSearchRegionsmyNOVSegmentsRig SystemsAftermarketLandOffshoreWellbore TechnologiesIntegrated ApproachWellSite ServicesDrilling and InterventionDynamic Drilling SolutionsIntelliServGrant PridecoTuboscopeCompletion & Production SolutionsCompletion ToolsFiber Glass SystemsFloating Production SystemsIntervention & Stimulation EquipmentProcess & Flow TechnologiesSubsea Production SystemsXL SystemsProductsTrainingAbout NOVNews & EventsInvestorsCareersClean Water SubseaKeeping Water in its PlaceFrom topside to seabed, the Seabox™ SWIT™ technology revolutionizes offshore water treatment.Clean Water SubseaKeeping Water in Its PlaceTweetMost wells lose production pressure after only 30 percent of the reservoir is extracted, leaving behind rich reserves. The U.S. Department of Energy and World Energy Council estimate that hundreds of billions of barrels of oil exist in old wells.Up to 50 percent more oil can be tapped by increasing reservoir pressure via water injection and other methods. Global water injection requirements are projected to double or triple within 10 years, with offshore drilling creating much of this demand.Removing sediment and bacteria from injection water is never cheap, and moving the process offshore only increases complexity. Oil and gas companies rely on preliminary well test information to estimate oil reserves and production rates before investing in costly topside water treatment systems. Even tiny miscalculations can lose millions of dollars. "Life-of-field" water injection requirements rarely match initial expectations, particularly if satellite fields are discovered and processed via the same offshore infrastructure.The Seabox™ SWIT™ technology offers a flexible solution that moves offshore water treatment from topside to seafloor. This approach saves the cost, weight and space issues of topside systems and offers a modular approach to water treatment planning. Operators can adjust field drainage strategies as they go, reducing the uncertainties of planning traditional treatment systems within an industrial megaproject. This gives greater flexibility to optimize field drainage during or after investing in the infrastructure, aiding recovery of larger volumes of reserves.At depths of less than 500 feet/152 meters, offshore production platforms are commonly fixed to the seabed. Deeper water requires self-contained capabilities such as floating production storage and offloading vessels and tension leg platforms. Traditional topside treatment requires bulky equipment costing up to $70,000/ton/tonne and weighing thousands of tons/tonnes. These units require large amounts of deck space, leaving little flexibility for change as reservoir knowledge evolves during production.Imagine the Seabox SWIT technology as a structure that sits on the seabed and uses an injection pump to draw seawater through it. Disinfection chemicals such as chlorine and hydroxyl radicals are generated via electrolysis on their way through