Environmentally safe annular fluid
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United States of America Patent
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Mar 4, 1997
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N/A
app pub date -
Feb 17, 1995
filing date -
Feb 17, 1995
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Abstract
An environmentally acceptable, thermally insulating annular fluid comprised of a liquid which is non-aqueous, non-corrosive, and thermally insulating, a clay gellant, and a clay dispersant. A preferred packer fluid includes an ester originated from a vegetable or animal oil as at least a major portion of the liquid phase.
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