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Borehole sucker-rod pumping plant for pumping out gas liquid...

Wells – With below and above ground modification – Eduction pump or plunger in well
Reexamination Certificate

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Borehole ventilation sealcover

Wells – Above ground apparatus – Having structure for converting from one mode of operation...
Patent

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Borehole water pumping system with sandtrap

Wells – With below and above ground modification – Eduction pump or plunger in well
Patent

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Borehole-conformable tool for in-situ stress measurements

Wells – Processes – With indicating – testing – measuring or locating
Patent

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Boring apparatus

Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe
Patent

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Boring device for lining material in branched portions of lined

Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe
Patent

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Bottom discharge seal section

Wells – With eduction pump or plunger – Having liquid-gas separator
Reexamination Certificate

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Bottom hold completion system for an intermittent plunger

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Bottom hold completion system for an intermittent plunger

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Bottom hole assembly

Wells – Processes – Placing fluid into the formation
Reexamination Certificate

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Bottom hole assembly with coiled tubing insert

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector
Reexamination Certificate

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Bottom hole assembly with coiled tubing insert

Wells – Processes – Assembling well part
Reexamination Certificate

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Bottom hole flow control apparatus

Wells – With electrical means
Patent

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Bottom hole fluid pressure communicating probe and locking mandr

Wells – Combined
Patent

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Bottom hole sampler and safety valve and valve therefor

Wells – Valves – closures or changeable restrictors – Fluid operated
Patent

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Bottom hole shut-in tool

Wells – Packers or plugs – With controllable passage between central conduit and space...
Patent

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Bottom hole well strainer

Wells – Screens – Stacked annular sections
Patent

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Bottom lock pipe seal assembly

Wells – Packers or plugs – With expanding anchor
Patent

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Bottom mount auxiliary pumping system seal section

Wells – With eduction pump or plunger
Reexamination Certificate

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Bottom set downhole plug

Wells – Packers or plugs – With expanding anchor
Reexamination Certificate

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