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H.sub.3 PO.sub.4 /HF Siliceous formation treating composition an

Wells – Processes – Placing fluid into the formation
Patent

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Handling and assembly equipment and method

Wells – Processes – Assembling well part
Reexamination Certificate

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Hands-free bail-elevator locking device with combined...

Wells – Processes – Assembling well part
Reexamination Certificate

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Hanger and running tool apparatus and method

Wells – Processes – Placing or shifting well part
Patent

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Hanging liners by pipe expansion

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Hanging liners by pipe expansion

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Hanging liners by pipe expansion

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Hanging liners by pipe expansion

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Hanging liners by pipe expansion

Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate

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Hasdrive with multiple offset producers

Wells – Processes – Specific pattern of plural wells
Patent

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Heat activated ballistic blocker

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

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Heat activated safety fuse

Wells – Processes – Destroying or dissolving well part
Patent

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Heat controlled oil production system and method

Wells – Processes – Heating – cooling or insulating
Patent

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Heat injection process

Wells – Processes – Distinct – separate injection and producing wells
Patent

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Heat injection process

Wells – Processes – Distinct – separate injection and producing wells
Patent

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Heat injection process

Wells – Processes – Heating – cooling or insulating
Patent

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Heat injection process

Wells – Processes – Heating – cooling or insulating
Patent

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Heat injection process and apparatus

Wells – Processes – Heating – cooling or insulating
Patent

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Heat sources with conductive material for in situ thermal...

Wells – Processes – Heating – cooling or insulating
Reexamination Certificate

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Heated brine secondary recovery process

Wells – Processes – Distinct – separate injection and producing wells
Patent

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