The anti-locked mud resolves to avoid the drilling locked accident due to the pressure difference.The mud owns favorable rheidity,filterability,strong anti-pollution,and small coefficient of viscosity.
For emusion oil mud,negative emulsion oil mud and anti-locked mud, CP-882 organoclay is a kind of good rheological additive to make the mud have good suspension property,wall protection and anti-filtration,furthermore,under the pressure 180pa and the temperature 230C ,the mud can maintain stable physical and chemical property.