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Salinity tolerant surfactant oil recovery process

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

Patent

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Salt-tolerant alkyl aryl sulfonate compositions for use in enhan

Wells – Processes – Heating – cooling or insulating

Patent

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Sample chamber with dead volume flushing

Wells – Processes – Sampling well fluid

Reexamination Certificate

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Sample extraction system for boreholes

Wells – Processes – Sampling well fluid

Reexamination Certificate

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Sampling device

Wells – Processes – Sampling well fluid

Reexamination Certificate

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Sampling hydrocarbons in a well using a flexible bag

Wells – Processes – Sampling well fluid

Patent

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Sand barrier for a level 3 multilateral wellbore junction

Wells – Processes – Parallel string or multiple completion well

Reexamination Certificate

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Sand consolidation method

Wells – Processes – Cementing – plugging or consolidating

Patent

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Sand consolidation method

Wells – Processes – Cementing – plugging or consolidating

Patent

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Sand consolidation method

Wells – Processes – Cementing – plugging or consolidating

Patent

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Sand consolidation method

Wells – Processes – Providing porous mass of adhered filter material in well

Patent

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Sand consolidation method employing latex

Wells – Processes – Cementing – plugging or consolidating

Patent

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