METHOD OF SEPARATING SOLID PHASE IN DRILLING MUD AND APPARATUS FOR PERFORMING THIS METHOD

摘要

The method of separating the solid phase in a drilling mud includes forming from the drilling mud an adhesion layer on a rotating curvilinear closed surface by partly introducing this surface into the drilling mud, and simultaneously treating the drilling mud and the adhesion layer formed therefrom in a direct-current electric field, to reduce the value of the surface tension in the adhesion layer, and regulating the angular speed of rotation of the curvilinear closed surface to attain the predetermined values of the centrifugal forces in the adhesion layer. There is disclosed an apparatus for performing said method, comprising: receptacles adapted to receive the drilling mud to be purified and the purified drilling mud, respectively, and a driven drum accommodated above the receptacle for the drilling mud to be purified so that a portion of the peripheral surface thereof extends into the drilling mud, for the adhesion layer to be formed thereon; electrodes connectable to a direct-current source, adapted to produce an electric field in the drilling mud being purified and in the adhesion layer.