Drilling fluid for downhole electrocrushing drilling
AssigneesHalliburton Energy Services, Inc., Chevron U.S.A. Inc.
InventorsDonald Curtis Van Slyke, William Walter Shumway
Life of this patent
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Abstract
The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a non-polar oil, water, and glycerin. The base fluid may further include a polar oil and an alkylene carbonate. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity 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.
Claims20
An electrocrushing drilling fluid comprising a electrocrushing drilling base fluid comprising at least one of water, an alkylene carbonate, and a polar oil, wherein the electrocrushing drilling base fluid has a dielectric constant of at least 6 at 100 kHz frequency.
The electrocrushing drilling fluid further comprising non-polar oil, glycerin, or a combination thereof.
An electrocrushing drilling fluid comprising a electrocrushing drilling base fluid comprising at least one of a non-polar oil, water, and glycerin, wherein the electrocrushing drilling base fluid has a dielectric constant of at least 6 at 100 kHz frequency.
16-26. (canceled)
Dependencies are inferred from the claim text.