Twin Filter B.V.
Profile
Twin Filter designs and manufactures a wide range of filtration equipment and consumables for the offshore industry. We supply filter services and solutions for completion/gravel pack fluids, work over fluids, water injection, waste water treatment, pipeline flushing, produced water treatment, sea water intake filtration and pre filtration RO.
Address
1505 HE Zaandam
Zuiddijk, 398
Netherlands
Phone: 0031-75-6555-000
Fax: 0031-75-6555-015
Products
Name: TwinZapp
Description: The emulsions are destabilized through an oxidization process. • The resulting neutrally buoyant particles are separated with a back-washable deep filtration system.
Details:
Emulsions in produced formation water are a given as corrosion inhibitors and other chemicals are injected. On drilling rigs, high amounts of slop water are generated while cleaning pits and decks. The emulsions are often too strong to simply let gravity and time do its job. Space and time are exactly two major constraints in an offshore environment. Twin Filter and Brilliant Water Solutions developed a DNV and ATEX Zone II certified skid which operates independently from ongoing processes. No re-engineering required. The skid is simply a last step add-on before water is discharged and treats the water continuously at a typical rate of 30 bbl/hour.
Press Releases
Chemical emulsions during exploration and production of oil and gas.
EOR: The most advanced production stimulation techniques currently being introduced make use of a mix of viscosifiers and surfactants (SP= Surfactant Polymer water / ASP = Alkali Surfactant Polymer water). The produced water will contain chemical emulsions, and the viscosity will be remarkably higher than what the industry is used to (3-10 CP). making the current treatment methods inadequate. GAS: Generally produced waters obtained during gas production are difficult to deal with because of the tight oil in water emulsions present. The emulsions are caused by corrosion inhibitor, methanol as well as clay particles stemming either from the reservoir or from the drilling muds as used during the exploration phase. SLOP: Every drilling or production platform has slop water. This slop water comes from cleaning of the mud pits and cleaning the deck. This water contaminated with oil has high concentrations of surfactants. These surfactants (soap) creates very strong emulsions what make the water very difficult to separate. FRACKING: Fracking is a technique used to release petroleum, natural gas (including shale gas, tight gas, and coal seam gas), or other substances for extraction. This type of fracturing creates fractures from a wellbore drilled into reservoir rock formations. During fracking operations a liquid containing water, sand and a variety of other chemicals is used. After fracturing the formation the bulk of this cocktail is flowing back (Flowback water!). At many locations in the USA and Mexico water is scarce, hence the interest in re-use of the Flowback. It is important in that case to take care of the oil in water emulsion created. Flotation cells, hydro cyclones and skim tanks can remove the bulk of the hydrocarbons. However these technologies cannot deal with chemical emulsions. For breaking emulsions and to enhance the separation demulsiers and coagulants are dosed. These chemicals do help to separate the oil/water but are costly, require constant operator attention and in many cases have negative impacts on the environment. Over the last years membrane, coalescing, oxidation and absorption separation technologies are applied for last stage oil/water separation. The required effluent levels can be achieved but against a very high cost and footprint. Solution We developed a new concept for breaking chemical emulsions as created in the applications as per above. The system is compact, has no moving parts and is electrically powered. The system breaks the emulsion and in a second stage takes care of coalescing and separation of the oil phase. This second stage will also remove the solids if required. The Zapp technology will be supplied fully automated in very compact skid-mounted packages and can be installed in existing separation systems. New The technology is developed in 2011 and successfully tested offshore on 4 platforms on produced water from gas production. Since October 2012 a rental system is operational at the North Sea with water effluent qualities consistently way below the required 30ppm (<10ppm). A second installation is expected in March of 2013. The components used are all ATEX Zone II T4 certified. Innovative The system does not need a constant quality feed such as a membrane system. Also a high particle loading will not affect the system. Hardly any operator attention is required. At this moment a lot of existing separation package do have problems to achieve the required effluent levels and are spending millions of USD on chemicals to enhance the separation. Proven OIW levels of 1000ppm were reduced <10ppm. Onshore we tested different samples of slop water, frac water as well as SP water and consistently obtained results of <5ppm of oil in water in one single pass.
External Link
