Oilfield Application: Sodium montmorillonite (Earth Pro Wyoming Gel) is sold under various trade names. In fresh water it yields 92-100 bbl/ton of 15 cps viscosity mud.
Earth Pro Wyoming Gel conforms to the following API specifications (API Spec 13A, Section 4 Fourteenth Ed. Aug. 1991). Suspension of 22.5 grams in 350 ml of distilled water.
Earth Pro Wyoming Gel is used for viscosity and filtration control in fresh water mud systems. In muds with a salinity of 3500 mg/L or higher the bentonite must first be prehydrated in fresh water.
Cementing Application: It is not normally used for cementing operations due to potential interference’s that the peptizing agent may have on other cement additives. The synthetic polymer present in Earth Pro Wyoming Gel may impart some viscosity to the cement blend.
To assure compatibility and viscosity requirements, lab tests should be performed prior to incorporating Earth Pro Wyoming Gel into a cement slurry. It is normally used for viscosity and filtration control in fresh water mud systems.