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Apparatus and methods for separating and joining tubulars in...

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

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Apparatus and methods for separating and joining tubulars in...

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

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Apparatus and methods for separating and joining tubulars in...

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

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Apparatus and methods for stimulating a subterranean well

Wells – Processes – Separate steps of fracturing or attacking formation
Patent

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Apparatus and methods for testing earth formations

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

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Apparatus and methods for tubular makeup interlock

Wells – Processes – Assembling well part
Reexamination Certificate

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Apparatus and methods for tubular makeup interlock

Wells – Processes – Assembling well part
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Apparatus and methods for tubular makeup interlock

Wells – Processes – Assembling well part
Reexamination Certificate

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Apparatus and methods for tubular makeup interlock

Wells – Processes – Assembling well part
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Apparatus and methods for tubular makeup interlock

Wells – Processes – Assembling well part
Reexamination Certificate

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Apparatus and methods for use in cementing a casing string withi

Wells – Processes – Cementing – plugging or consolidating
Patent

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Apparatus and methods for use of a wellscreen in a wellbore

Wells – Processes – Graveling or filter forming
Reexamination Certificate

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Apparatus and methods for utilizing a downhole deployment valve

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

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Apparatus and methods for utilizing expandable sand screen...

Wells – Processes – Graveling or filter forming
Reexamination Certificate

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Apparatus and methods for utilizing expandable sand screen...

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

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Apparatus and methods of preventing screen collapse in gravel pa

Wells – Processes – Graveling or filter forming
Patent

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Apparatus and methods of use for a whipstock anchor

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Apparatus and methods to complete wellbore junctions

Wells – Processes – Assembling well part
Reexamination Certificate

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Apparatus and process for closed loop control of well plunger sy

Wells – Processes – Producing the well
Patent

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Apparatus and process for drilling and completing multiple wells

Wells – Processes – Parallel string or multiple completion well
Patent

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