Emerson releases Roxar subsea chemical injection valve

  • July 15, 2010
  • Emerson Automation Solutions

July 15, 2010 -- Emerson Process Management launched the Roxar subsea Chemical Injection valve (High Flow), a reliable, compact and robust retrievable solution providing total control over the injection of hydrate inhibitors in oil & gas operations. The launch comes at a time when oil & gas operators are facing increased threats to their activities from hydrates – crystals formed in high pressure and low temperature gas flows – which can block pipelines and interfere with production. The Roxar subsea Chemical Injection valve provides operators with precise control over the flow and chemical dosage rates of hydrate inhibitors, such as MEG (Monoethylene Glycol) which is added to the gas flow at the well heads to prevent such hydrates.The Roxar subsea Chemical Injection valve comes with a number of key benefits. These include:

  • Robustness. The Roxar subsea Chemical Injection valve is built to last with carefully selected and tested materials (high grade alloys and ceramics), providing the very best in contamination tolerance and erosion resistance in hostile operating conditions. The injection valve can operate at pressures of up to 10,000 psi and depths of 3,000 meters.In addition, the injection valve is qualified to operate within a contaminating fluid environment, such as sand particles, without any need for subsea filtration. The valve also has no moving parts, except when adjusting flow rates, resulting in a longer lifecycle and increasing reliability in operations. In the unlikely event of the valve failing, it can be retrieved by ROV (Remotely Operated Underwater Vehicle) without requiring special tools, and will stay in position and continue to provide a constant injection rate. This gives the operator crucial time to prepare for interventions without interrupting production. The injection valve has no choke points which can lead to clogging.
  • Accuracy. The Roxar subsea Chemical Injection valve comes with exceptional measurement capabilities. It provides a wide adjustable flow range and generates continuous and accurate measurements of injection rates, no matter what the operating conditions and irrespective of changes in pressure. An optional turbine meter also provides increased measurement accuracy.The flow measurement accuracy at constant viscosity and temperature is better than +/- 5% and better than +/- 1% with the turbine meter version.
  • Flexibility and Compactness. Finally, the Roxar subsea Chemical Injection valve provides maximum flexibility to the operator. It is lightweight (less than 60 kg in water and 150 kg in total weight), has low power consumption and uses standard communication protocols, making it ideal for EPC companies looking for a flexible, low maintenance solution that can help reduce weight on their subsea structures. The injection valve can also be integrated with other measurement solutions to increase system performance. For example, it can be integrated with the Roxar subsea Wetgas meter, where the wet gas meter measures the early onset of formation-water production and the Roxar subsea Chemical Injection takes the necessary preventative action through an adjusting of the MEG/water mixture.‚ÄúWith operators needing to ensure that their oil & gas reservoirs are operating at the very peak of their potential, the successful and economic flow of hydrocarbons from the reservoir to the refinery has never been so important,‚Äù said David Newman, global oil and gas sales and marketing director, Emerson Process Management. ‚ÄúThat is why hydrate prevention is so high on the agenda today, especially with the rise in wet gas and deepwater fields which are more susceptible to hydrates. Emerson‚Äôs Roxar subsea Chemical Injection valve meets these challenges head-on, providing the operator with total injection control over their hydrate inhibitor strategy through a robust, accurate, and highly flexible solution built around our field proven throttle valve technology.‚ÄùAbout Emerson Process ManagementEmerson Process Management, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, pulp and paper, power, water and wastewater treatment, mining and metals, food and beverage, life sciences and other industries. The company combines superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Its brands include PlantWeb, Syncade, DeltaV, Fisher, Micro Motion, Rosemount, Daniel, Ovation, AMS Suite, and Roxar.

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