Get assured bacterial control of your oil and gas wells, quickly and over time, with the BioSorb™ 1250 prolonged-aging bacteria control agent from Baker Hughes. A controlled-release microbacteriacide, BioSorb slowly releases from the proppant pack to provide immediate and long-term pack protection. BioSorb comprises a dry, solid particle containing an absorbed specialty biocide. The product is nominally within the mesh size of 20/40 proppant and is placed deep in the formation via a fracture, frac-pack, gravel-pack, or pre-packed screen system. When the well begins to produce, the biocide slowly desorbs into the water phase of the production stream, inhibiting bacteria growth in the near-wellbore area and tubing. Because the product is dry and inert, it can be easily cleaned up and will not contribute to chemical runoff if spilled. This is environmentally preferable to conventional liquid additives or batch- and continuous-injection liquid chemical systems.