Lubrication for drilling fluid
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United States of America Patent
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Mar 21, 2017
Grant Date -
Jun 11, 2015
app pub date -
Dec 8, 2014
filing date -
Dec 6, 2013
priority date (Note) -
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Abstract
A drilling fluid lubricant includes a crude tall oil product and a derivative of ricinoleic acid that is at least partially transesterified product. A modified drilling fluid includes a water-based drilling fluid in a range of from about 95 vol. % to about 99 vol. % and a drilling fluid lubricant in a range of from about 0.1 vol. % to about 5 vol. % of the fluid. The drilling fluid lubricant includes a crude tall oil product selected from the group consisting of crude tall oil, distilled tall oil, acid tall oil, fractionated tall oil, and combinations thereof. The drilling fluid lubricant also includes at least partially transesterified derivative of ricinoleic acid product. The product comprises at least partially transesterified derivatives of ricinoleic acid that combined are in a range of from about 88 mole % to about 99 mole % of the product.
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