4. Earth boring, well treating, and oil field chemistry
  5. Earth boring
  6. Contains organic component

William M. Duncan, Jr.

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Acid based micro-emulsions

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate

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Drilling fluid and drilling fluid additive

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent

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Low toxicity terpene drilling fluid and drilling fluid additive

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent

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Organic liquid base drilling fluid with terpene

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent

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