LandOfFree - US Patents - Listing for Wells,Means for perforating, weakening, bending or separating pipe...,With disparate below ground feature

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Dual string well packer

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Emergency downhole disconnect tool

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Fluid pressure activated firing head for providing clean fluid

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Gravel packing system for a production radial tube

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Gun below packer completion tool string

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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High temperature perforating apparatus

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Hydraulic cutting overshot

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Hydraulic firing head

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Reexamination Certificate

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Hydraulic well penetration apparatus

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Large head downhole chemical cutting tool

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Linear plane perforator

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Lock mechanism for use with a downhole device

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Reexamination Certificate

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Method and apparatus for retaining shaped charges

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Method and means for emergency shearing and sealing of well casi

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Methods and apparatus for perforating and treating production zo

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Methods and apparatus for severing conduits

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Methods and apparatuses for electronic time delay and...

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Reexamination Certificate

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Milling tool and operations

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Multiple test cased hole formation tester with in-line perforati

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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Multiple test cased hole formation tester with in-line perforati

Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature

Patent

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