KemGuard® scale inhibitors for oilfield operations

KemGuard® scale inhibitors for oilfield operations

KemGuard® scale inhibitors for oilfield operations

Oilfield environments can create the perfect conditions for scale deposition in drilling, stimulation and production applications. Kemira’s broad portfolio of KemGuard scale inhibitors and dispersants control the deposition of sulphate and carbonate scales across a wide range of operating environments, lowering the risk to production and extending the life of the field.

  1. Tagged polymeric inhibitors provide oilfield operators with the ability to monitor residual levels down to low minimum inhibitor concentration (MIC) onsite, ensuring continuous flow assurance and maximizing uptime. By deploying multiple similar, yet distinctive chemistries into separate wells or flows where produced fluids are routed through a single co-mingled flow line, allows for multi-detectability of the residual inhibitor concentrations.

    Product Description Primary use
    KemGuard 2420 Sulphonated co-polymer; F-tag 1st generation BaSO4, CaSO4, SrSO4
    KemGuard 2430 Sulphonated co-polymer; F-tag 2nd generation BaSO4, CaSO4, SrSO4
    KemGuard 2490 Sulphonated co-polymer; P-tag BaSO4, CaSO4, SrSO4
  2. The KemGuard 2000 series antiscalants are polymeric threshold inhibitors and crystal modifiers that function across a wide operating window, making them suitable for a range of oilfield environments. They are highly effective for the prevention of sulphate scales and extremely tolerant to high levels of soluble calcium. They also function well across a wide range of pH, from acidic to alkaline.

    Product Description Primary use
    KemGuard 269 Sulphonated co-polymer with
    performance flexibility over a wide range of temperature, salinity and soluble calcium conditions; tolerant to iron
    BaSO4, CaSO4, SrSO4
    KemGuard 2700 Sulphonated co-polymer; Na salt; Partially neutralized variant of KemGuard 269 with equivalent performance BaSO4, CaSO4, SrSO4
    KemEguard 2593 Sulphonated co-polymer; improved biodegradability for environmentally sensitive applications BaSO4, CaSO4, CaCO3, mixed scales
  3. The KemGuard 5000 series is based on polymers including acrylic acid, maleic anhydride, sulphonated monomers and acrylamide, as well as other specialty monomers. These polycarboxylate products are effective crystal growth retarders and dispersants which co-ordinate through the carboxyl group to the scale crystal lattice preventing further growth.

    Product Description Primary use
    KemGuard 5021/5021D Polyacrylate; Na Salt; liquid and dry; General purpose oilfield inhibitor CaCO3, mixed scales
    KemGuard 5040LS Polycarboxylate; Na Salt; low solids; Cost-effective variant for hydraulic fracturing CaCO3, mixed scales
    KemGuard 5264 Polycarboxylate sulphonated co-polymer; Excellent Ca inhibitor and effective against silica scales. Improved temperature vs phosphonates and polyacrylates Dispersant, CaPO4, Silica and silicate scales
    KemGuard 5376 Polycarboxylate terpolymer for mixed scale and harsh environments; Functions where polyacrylates and phosphonates are challenged CaCO3, BaSO4, mixed scales

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