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

Tao Xiang

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Drilling fluid systems for reducing circulation losses

Earth boring – well treating – and oil field chemistry – Earth boring – Contains inorganic component other than water or clay
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Drilling fluids with redispersible polymer powders

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
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Dual-mixer loss of signal detection circuit

Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By presence or absence pulse detection
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Fluid loss control and sealing agent for drilling depleted...

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

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Shale stabilizing drilling fluids comprising calcium...

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
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Profile ID: LFUS-PAI-P-2389570

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