Ven-Rez II™ is a chrome-free lignite derivative designed to provide improved filtration control and stabilize rheological properties in high temperature water base muds. Ven-Rez II™ is based on a new lignite derived resin. It is compatible with most water based drilling mud additives.
Ven-Rez II™ can be used to thin almost all types and densities of water based drilling fluids. In addition, it will function as an effective emulsifier in oil-in-water muds and will provide some emulsification and dispersing properties for liquid lubricants.
Ven-Rez II™ can be used to stabilize salt-contaminated muds. Ven-Rez II™ is particularly effective as a high temperature filter loss additive in water based systems. Approximately 0.5-2.0 lb/bbl Ven-Rez II™ is usually required to produce optimum thinning of water based muds. If sufficient alkalinity is not present in the mud, it may be necessary to add up to 0.5 lb/bbl or more of caustic soda.
Ven Rez II PDS