organophilic clay

 

Clay minerals whose surfaces have been coated with a chemical to make them oil-dispersible. Bentonite and hectorite (plate-like clays) and attapulgite and sepiolite (rod-shaped clays) are treated with oil-wetting agents during manufacturing and are used as oil-mud additives. Quaternary fatty-acid amine is applied to the clay. Amine may be applied to dry clay during grinding or it can be applied to clay dispersed in water. The latter process is much more expensive, requiring filtering, drying and other manufacturing steps. Organophilic bentonite and hectorite, "bentones," are used in oil muds to build rheology for cuttings lifting and solids suspension. They also contribute to low-permeability filter cake. Organophilic attapulgite and sepiolite are used in oil muds strictly to build gel structure, which may not be long lasting due to shear degradation as the mud is pumped through the bit. 

Solvent based organoclay rheological additives BP®-182(BK®-882)

  1.Quality specification:
Appearance                                     :  light color, free-flowing powder
Moisture content ( @105℃,2hrs )   : ≤3.5%
Granularity (<76μm or 200mesh)    : ≥98%
Colloid (gel) rate                               : ≥95%
Heavy metal (Pb)                             : ≤15mg/kg
Arsenic     (As)                                 : ≤5 mg/kg

2. Characteristics and Application:
Free-flowing powder with light color.  Applicable to low polar solvent systems.
Need high speed dispersing. Dry-powder addition. Good thixotropy and stability to make the mud have good suspension property, wall protection and anti-filtration, furthermore, under the pressure 10⁸Pa and the temperature 230℃,
the mud can maintain stable physical and chemical property.
Used in oil drilling mud, emulsion oil mud, suspending agent, etc.

     3.The international counter-brand is: Bentone-990.