Drilling fluid and drilling fluid additive
AssigneeIntegrity Industries, Inc.
InventorWilliam M. Duncan, Jr.
Life of this patent
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Abstract
A drilling fluid additive comprises a monocyclic terpene, preferably d-limonene or dipentene, a bycyclic terpene such as 3-carene, or mixtures thereof and an oil such as mineral oil or vegetable oil. The additive is mixed in a water based drilling mud in the range of 1-8% by volume. The additive has a number of advantages, particularly improved penetration rate, high lubricity and low toxicity.
Claims10
A water based drilling fluid comprising water, a weight material, a viscosifier and 1-8% of (a) 30-95 parts by volume of a cyclic terpene and (b) 70-5 parts by volume of an oil selected from the group consisting of vegetable oil, mineral oil and mixtures thereof.
Dependencies are inferred from the claim text.