CYMACH-valves is a new patented technology and product which regulates the downhole pressure for polymer- and water injection. It is a scalable and robust technique applicable over a wide range of flow- and pressure conditions
More than 20 years of experience in fluid-mechanics and rotating flows have resulted in the basic design for the CYMACH-valves. Based on the initial calculations a series of prototypes have been manufactured and tested. In 2019 full scale tests have been executed in Colombia. Three types of Cymach (FG-series: Yellow, Green and Blue) have been tested.
The colour indicates the different design in flowrate/pressure drop. The results show that the measurements with respect to the pressure behaviour of the valves match the calculations very well. Also it was shown that the deterioration of polymer was up to a factor of 2 less compared to regular systems, this resulted in a ROI of less than 2 weeks! It therefore can be concluded that the CYMACH-valves have a wide range of applications and regulate the pressure very well with a minimum of shear and therefore minimum of fluid deterioration. CYMACH-valves can be applied for water injection and polymer injection; in for example Enhanced Oil Recovery (EOR). Requested design parameters for polymer injection and water injection.