4. Boring or penetrating the earth
  5. Processes
  6. Chemical reaction with earth formation or drilling fluid...
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Well drilling process and clay stabilizing agent

Boring or penetrating the earth – Processes – Chemical reaction with earth formation or drilling fluid...
Patent

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Well treating method to prevent or cure lost-circulation

Boring or penetrating the earth – Processes – Chemical reaction with earth formation or drilling fluid...
Reexamination Certificate

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