4. Wells
  5. Processes
  6. Placing or shifting well part

Petrus Cornelis Kriesels

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Drill bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Reexamination Certificate

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Hydraulic drill string accumulator

Boring or penetrating the earth – Below-ground impact members – Fluid-operated
Reexamination Certificate

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Method of drilling an ultra-short radius borehole

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Reexamination Certificate

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Method of radially expanding a tubular element

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Method of radially expanding a tubular element

Wells – Processes – Placing or shifting well part
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFUS-PAI-P-2277658

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