The oil and gas industry involves numerous filtration processes each with different operating conditions. One example is completion and workover fluid filtration. These fluids are typically weighted brines, and is to be kept as clean as possible to reduce the risk of formation damage. Corrosion products, debris from surface and wellbore tanks, and drilling mud and drill cuttings can contaminate the well reducing near-wellbore permeability and the well’s productivity.
The system
A filtration system will be set up, typically with a DE filter unit to handle the denser brine solution, followed by a cartridge filter to polish the fluids down to 2μm. A pump will recirculate the fluids throughout the system while the Total Suspended Solids (TSS) or Turbidity readings are monitored and will cease when a certain reading is obtained.
How we can help
Filtrafine® MFG filter cartridges are designed for this application. These are pleated micro glass fibre that have much larger filtration areas than the conventional extrusion bonded, depth type cartridges. They are also absolute rated (removing 99.9% of contaminants above the rated size). Best of all these cartridges are manufactured under a certified ISO 9001 quality system to ensure its reliability and performance.
For filtering higher temperature brines, we have an option to have cartridges enclosed in a rigid outer cage to increase rigidity and resist deformation. There is also a high flow option, if the flow rate of the brine to be filtered is very large.
More information is available here. Alternatively, the full oil and gas brochure can be found below.
We’d love to hear your opinions, comments and thoughts so please feel free to comment below. If you would like us to work on your filtration issues, please drop us an email and we’d be happy to!
