• Cartridge Filter Unit

    NOV Water Services offers the BRANDT™ Cartridge Filter Unit, which is used globally for the treatment of completion fluids during wellbore clean-up, gravel pack operations, workovers, water injection operations, and general seawater (brine) filtration.



    The stainless steel filter pods can be fitted with nominal rated or absolute rated pleated cartridge elements or oil absorption filter elements. Each pod holds fifty, 39 in (1000 mm) cartridges. The design of the manifold allows the operator to choose between single, dual parallel or dual series vessel use. The dual series configuration is used with two stage filtration, using coarse filters in the first vessel and fine filters in the second. The Cartridge Filter Unit can be positioned as a polish filter downstream of the diatomaceous earth filter or as a stand-alone filtration unit. This filter unit is particularly effective for filtering seawater and treating produced water during well testing, when fitted with oil absorption filters.




    Individual, in-parallel or in-series flow

    Flexible use

    High flow rates

    Processes large quantities of fluid

    Easy operation

    Requires minimal training

    Small footprint

    Minimal deck space

    Large filtration surface area

    Highly-effective treatment of lightly contaminated brines


    Number of Cartridges per Vessel


    Maximum Recommended Flow

    18 bbl/min (168 m3/hr)

    Maximum Working Pressure

    100 psi (7 bar)

    Maximum Working Temperature

    158°F (70°C)

    Vessel Design Code

    PED 5500

    Cartridge Diameter

    2.5 in (63 mm)

    Cartridge Length

    39 in (1000 mm)

    Code 3 Cartridge Type

    Single Closed and 222 Open End

    Vessel Diameter

    24 in (610 mm)

    Pipe Size

    4 in (100 mm)

    Vessel and Pipe Materials

    316 Stainless Steel

    Frame Materials

    Carbon Steel

    Main Valves

    4 in (100 mm) Butterfly

    Inlet and Outlet Terminations

    4 in (100 mm) NPT Thread

    Pressure Relief Valve

    100 psi (7 bar) Set Point

    Dimensions (L x W x H)

    89 in x 47 in x 79 in (2250 mm x 1200 mm x 2000 mm)

    Weight (empty)

    3300 lb (1500 kg)