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Tubing drain valve useful with heavy, sand-bearing oil

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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Tubing driven progressing cavity pump and method of pumping...

Wells – Processes – Producing the well
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Tubing elongation correction system &amp; methods

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Tubing expansion

Wells – Processes – Placing or shifting well part
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Tubing expansion

Wells – Processes – Assembling well part
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Tubing expansion

Wells – Processes – Placing or shifting well part
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Tubing expansion

Wells – Processes – Placing or shifting well part
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Tubing expansion

Wells – Processes – Repairing object in well
Reexamination Certificate

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Tubing expansion tool

Wells – Processes – Assembling well part
Reexamination Certificate

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Tubing expansion with an apparatus that cycles between...

Wells – Processes – Repairing object in well
Reexamination Certificate

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Tubing hanger incorporating a seal

Wells – Processes – Placing or shifting well part
Patent

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Tubing hanger running tool

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Tubing hanger to permit axial tubing displacement in a well bore

Wells – Processes – Placing or shifting well part
Patent

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Tubing head control and pressure monitor device

Wells – Processes – Assembling well part
Reexamination Certificate

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Tubing injector

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Tubing injector

Wells – Processes – Assembling well part
Reexamination Certificate

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Tubing or drill pipe conveyed downhole tool system with...

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

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Tubing pressure operated initiator for perforating in a well bor

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Patent

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Tubing resettable well packer

Wells – Processes – Placing or shifting well part
Patent

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Tubing resettable well tool

Wells – Processes – Placing or shifting well part
Patent

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