4. Wells
  5. Processes
  6. Graveling or filter forming

Li-Jien Lee

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Acid coated sand for gravel pack and filter cake clean-up

Wells – Processes – Graveling or filter forming
Reexamination Certificate

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Glycol based drilling fluid

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

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Profile ID: LFUS-PAI-P-2795818

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