Antiscalants

Antiscalants We’re driving solutions to solve your toughest scaleproblems in oil and gas production. Our innovative proprietary technologyeffectively controls scale formation thereby significantly improving production well efficiency and extending well life cycle. Our robust technology is designed to work in the varied, changing and challenging down-hole water conditions encountered in today’s environments.Innovative and FlexibleKemira has the right products to treat all common oilfield scales and scaling conditions for different water qualities, pressures and temperatures. Our scale control additives are tolerant to water hardness and designed to function through varied modes of action including threshold control, crystal modification and dispersion.Kemira antiscalants are designed to treat a variety of scales encountered in oilfield production operations – from land to offshore. Surface water quality and down-hole fluids routinely combine to form waters incapable of maintaining the solubility of all dissolved ions. The resulting scale deposits restrict flow through injection, production and tubing strings, contribute to pump wear, increased sucker rod loads, fouling of heat exchanger equipment and under deposit corrosion problems at all well locations.Available water for drilling, stimulation and production often ranges from brackish to brine with high levels of hardness, salts and other contaminants. Water reuse and zero discharge at well sites concentrates water quality to higher dissolved solids and drives the formation of calcium carbonate, calcium sulfate, barium sulfate, strontium sulfateand iron scales.Different deployment techniques are used to treat oilfield scale, including “squeeze”, topside, and continuous injection.Scale in producing wells is often controlled by the squeeze technique and requires scale inhibitors capable of injection into the formation under pressure, adsorption to the formation with gradual release and no restriction of produced fluids. In addition to scale inhibitors for calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate and iron-based scales designed for all modes of application, Kemira has single component polymeric squeeze inhibitors tailored for deep well barium sulfate control. Extensive Product Line CapabilitiesOur extensive product line includes low molecular weight homopolymers, copolymers, a unique phosphonate and specialty formulations. Our polymer-based antiscalants include acrylic acid, maleic anhydride, sulfonated chemistries and acrylamide, as well as other specialty monomers. The product portfolio includes molecular weight ranges from 2,000 to 60,000 Daltons. We have the capability to target specific molecular weight and molecular weight range and various copolymerratios for the most effective control of oilfield scale. Barium Scale ControlCy-guard ® 269 scale inhibitor is proven technology developed to meet the demands for improved scale control in offshore oilfield production operations and deep squeeze applications. It is highly effective for barium sulfate control and far outperforms conventional phosphonate technology in low temperature conditions where barium sulfate deposition is more difficult to control. Cy-guard 269 technology is a market-leading product for the prevention of barium sulfate scale in the North Sea. Cy-guard is functional for calcium carbonate scale and is resistant to the presence of ferric and hardness ions, which can deactivate simple polycarboxylic acid and phosphonate scale inhibitors.Calcium Scale ControlColloid 8001 and Colloid 8010 scale inhibitors were specifically designed to treat calcium scale, in high calcite saturation conditions. These new inhibitors utilize unique calcium resistant phosphonate and polymer technology to provide outstanding treatment of calcium carbonate, calcium sulfate, as well as effective inhibition of barium sulfate scale. They “extend the treatment zone” for calcium scale and provide the ability to treat scale under severe oilfield conditions and high temperatures. Not many scale-inhibitors can treat calcium scale 100% under severe conditions - Colloid 8001 and Colloid 8010 can. The best choice of Colloid product will depend on the specific oilfield conditions and scale composition.Products for Specific NeedsFor less severe scale conditions, Kemira offers a wide range of Colloid polyacrylate and acrylic copolymer technologies capable of controlling calcium carbonate, calcium sulfate, barium sulfate, iron compounds and suspended solids through threshold inhibition and dispersion.Kemira’s Cy-guard and Colloid brands are well recognized in oilfield for reliability and effectiveness to prevent scale under moderate and harsh conditions. We are actively pursuing research and development to provide new and improvedtechnology for squeeze, continuous and surface applications. Research areas include detectable antiscalants for squeeze applications, antiscalants for increasingly more stringent environments and changing water quality, tagged products and biodegradable polymers. Talk to us about your specific needs.Figure 1. Pressure Profile Recorded for Cy-guard 269under Miller 70:30 Freshwater:SeawaterTest Conditions; T=121°C, System P=1000 psiH 4.9, Q=3ml/minD i f f e r e n t i a l P r e s s u r e (p s i )Time (minutes)86421950 Vaughn Road Kennesaw, GA 30144USA Tel +1 800 437 1542 Fax+1 770 436 3432P.O. Box 330 FI-00101 HelsinkiFinland Tel +358 10 86 11 Fax +358 10 862 1124 Cy-guard is a registered trademark of Cytec Technology Corporation Delaware, 300 Delaware Avenue, Wilmington, Delaware, 19801 and used with permission.Kemira makes this information available as an accommodation to its customers and it is intended to be solely a guide in customer’s evaluation of the products. You must test our products, to determine if they are suitable for your intended uses and applications, as well as from the health, safety and environmental standpoint. You must also instruct your employees, agents, contractors, customers or any third party which may be exposed to the products about all applicable precautions. All information and technical assistance is given without warranty or guarantee and is subject to change without notice. You assume full liability and responsibility for compliance with all information and precautions, and with all laws, statutes, ordinances and regulations of any governmental authority applicable to the processing, transportation, delivery, unloading, discharge, storage, handling, sale and use of each product. Nothing herein shall be construed as a recommendation to use any product in conflict with patents covering any material or its use.。