Drilling fluid for downhole electrocrushing drilling

Abstract

The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a non-polar oil, -OH, -(OH)2, or -(OH)3 alcohol, water, and an emulsifier in proportional amounts by weight or volume in that order. The electrocrushing drilling fluid may further contain additives. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of a set amount, an electric conductivity or viscosity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit and a method of electrocrushing drilling