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Pumping system and method for injecting a mixture of liquids...

Wells – Processes – Material placed in pores of formation to treat resident...
Reexamination Certificate

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Pumping system for high viscosity oil

Wells – With eduction pump or plunger – With packer or plug
Patent

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Pumping system for oil wells

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

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Pumping system including flow directing shoe

Wells – Processes – Separating material entering well
Patent

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Pumping well blow-out preventer

Wells – Automatic
Patent

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Purge water management system

Wells – Processes – Sampling well fluid
Patent

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Purging apparatus

Wells – With eduction pump or plunger – Having sediment trap or deflector
Patent

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Push/pull belleville stack for use with zertech MTM seal

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Push/pull belleville stack for use with zertech MTM seal

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Pyrolytic carbon coating of media improves gravel packing and fr

Wells – Processes – Graveling or filter forming
Patent

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Pyrotechnic charge powered operating system for downhole tools

Wells – Processes – Placing or shifting well part
Patent

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