4. Wells
  5. Processes
  6. Disassembling well part

Henk H. Jelsma

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Apparatus for drilling a curved borehole

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type
Patent

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Apparatus for drilling a curved borehole

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type
Patent

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Flexible centralizer

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...
Patent

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Fluid injection stimulated heavy oil or mineral production...

Wells – Processes – Distinct – separate injection and producing wells
Reexamination Certificate

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Fluid injection stimulated heavy oil or mineral production...

Wells – Processes – Distinct – separate injection and producing wells
Reexamination Certificate

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Profile ID: LFUS-PAI-P-744682

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