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Throttle unit for dump bailer and method of blocking a water...

Wells – Receptacles – Lateral ports used in well
Reexamination Certificate

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Torque drive mechanism

Wells – Receptacles – With separate air chamber having openable passage
Patent

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Vented non-pressurized, uncontaminated well fluid sampler

Wells – Receptacles – With valved or closed top
Patent

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Water soluble waterflood corrosion inhibitor

Wells – Receptacles – With separate air chamber having openable passage
Patent

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Well casing wash assembly

Wells – Receptacles – Lateral ports used in well
Patent

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Well fluid modular sampling apparatus

Wells – Receptacles – Lateral ports used in well
Patent

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Well fluid sampling apparatus with isolation valve and check...

Wells – Receptacles
Reexamination Certificate

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Well fluid sampling tool

Wells – Receptacles – With separate air chamber having openable passage
Patent

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Wellbore fluid sampling apparatus

Wells – Receptacles – Bottom receiving and side discharge valves
Patent

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Wellbore fluid sampling apparatus

Wells – Receptacles – Bottom receiving and side discharge valves
Patent

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Wireline dump bailer

Wells – Receptacles – With destroyable closure and valve
Patent

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