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Apparatus for actuating an annular piston

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Apparatus for cryothermal fracturing of rock formations

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Apparatus for securing a measurement-while-drilling (MWD) instru

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Coiled tubing operated full opening completion tool system

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Device for anchoring a probe in a well by spreading mobile ancho

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Device for supporting, raising and lowering duct in deep bore ho

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Device provided with retractable arms for the anchoring of an in

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Directional drilling azimuth control system

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Downhole lock system

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Downhole well tool and anchoring assembly

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Gripper assembly for downhole tools

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Gripper assembly for downhole tools

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Gripper assembly for downhole tools

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Gripper assembly for downhole tools

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Gripper assembly for downhole tractors

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Hydraulic holddown for well packer stinger

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Hydraulic tool and hydraulic pressure device

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Hydraulically actuated lock system

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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Lockable anchor for insertable progressing cavity pump

Wells – Expansible anchor or casing – Fluid pressure actuated
Reexamination Certificate

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Mechanism for anchoring well tool

Wells – Expansible anchor or casing – Fluid pressure actuated
Patent

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