A variety of chemicals are typically stored in the field or processing facility to expedite processing time by preconditioning an inlet fluid. These fluids may first enter into a hold tank to allow upstream solids and liquids time to separate prior to production, which allows the facility to
better handle upset conditions without stopping production. Stored additive chemicals include dispersants, flocculants, surfactants, glycols, diluents and rust inhibitors.
Fluids are typically stored in a series of outdoor steel tanks. The tank fluid volume should be continuously monitored since level variations may lead to upsets. Tanks contain agitated media with suspended solids that can coat floats, displacers and probes.