Coleman Filter Company has developed a line of filters used in Mixing Plant/Coil Tubing applications in upstream oil applications.
This particular application occurs during the completion of a well. Friction reducer, pipe on pipe, and gel sweep are pumped down the coil tubing unit to:
As these products and water are pushed from the well it goes through flowback iron that drops very large solids “nuts and bolt” size. Then to a sand ex where some frac and formation sand is removed. The water then flows through Coleman Filter string wound filters for final solids removal before returning to a supply tank to be reused by the coiled tubing unit and the mixing plant.
Filters most commonly used in mixing plant/coil tubing operations include: