Baker Hughes Corporation

Smith International, Inc.

Randall Louis Hebert

Praful C Desai

Mary L Laird

James E Saylor, Iii

Robbie B Colbert

Malcolm Perschke

Thomas Helbert

Joshua C Joerg

Harshad Patil

Marc Henderson

Joeseph V Hebert

Trygve Berthelsen

A J Dach, Iii

A cutting and pulling tool has a piston responsive to flow therethrough with an orifice to create backpressure to drive the piston uphole to rotate the blades outwardly such as in an expanded section of tubular below a transition from a smaller tubular dimension. The extended cutters are pulled to the transition and an overpull determines that the desired location has been reached. The overpull force is removed and fluid flow and rotation is commenced to cut. The blades extend to a position perpendicular to the tool axis so that they are supported off a radial housing surface as the weight of the cut string above is supported on the blades. The string is pulled up and supported with slips on a rig floor at which point weight is slacked off and a plug is landed in the top of the piston to push it down to remove the tool.

Cutting and pulling tool with double acting hydraulic piston

Methods of removing casing from a wellbore, the method including disposing a drilling tool assembly in a wellbore, the drilling tool assembly including a cutting device, a spearing device, and a jarring device. The methods further including activating the cutting device, cutting a first casing segment, deactivating the cutting device and activating a spearing device. The method further including engaging the spearing device with the first casing segment, activating the jarring device to free the first casing segment, and removing the first casing segment from the wellbore.

Methods of making multiple casing cuts

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Houma, LA, United States of America

Randall Louis Hebert