Use of high-intensity acoustic field exposure during the preparation of emulsion type drilling mud

Abstract

Existing methods of preparation of the oil based muds in laboratory conditions are reviewed in the article. Studies on the impact of a high intensity acoustic field exposure on the process parameters of drilling muds have been carried out in order to reduce the time of the water-in-oil emulsion preparation. The dependences of changes in the rheological characteristics and dispersability of the emulsion on the duration of its preparation are obtained. The authors also conducted an assessment of the stability of the oil based muds that are prepared using high-energy exposure after thermal aging under dynamic conditions (aging for 16 hours at a temperature of 80 °C in a roller oven with stirring at a speed of 25 rpm) and after 14 days in the state of rest.