Hog Wash® is a cross application product in Well Flow International’s Wellbore Cleanup System and provides additional cleaning of tubulars in the wellbore.
Hog Wash® uses the unique and patent design of a blend of environmentally friendly solvents. The solution acts as a carrier for surfactants to aid in the removal of mud, pipe dope, oil, sand, barite and other solids from casing and production tubing. The solvent/surfactant blend will form a weak emulsion in water, creating many small droplets. The surface activity of the solvents allows them to penetrate and break the hydrogen bonds holding dirt from a water base mud onto a steel surface. The solubility of the solvents aids in the removal of oil and grease from the tubulars. The surfactants adhere to the solids and aid in attracting them into the emulsified droplets, preventing their redepositing.
Hog Wash® is safe to handle and is non-combustible and biodegradable.
Hog Wash® is especially effective when used in combination with the EZI-Change® Casing Brush system.
Hog Wash® is used as an emulsion of 1 to 20 percent in a suitable water-based carrier. The higher concentration reduces surface volume required and decreases pumping time. The product and mud solids rise to the surface of the water-based carrier for ease of removal. This separation allows for minimal waste disposal.
Hog Wash® is equally effective on oil-based, synthetic based and water based drilling fluid environments.
Physical and Chemical Properties
|Solubility in Water||Partially Miscible|
|Specific Gravity (@20°C)||0.9±0.05|
Supplied in 200 liter plastic drums or 1000 liter IBC containers.
Shelf life is dependent on storage conditions but is estimated to be between 3 and 4 years at 20°C or between 2 and 3 years if stored above this temperature.