Baker Hughes Corporation

Chris J Walter

Jerry Edward Miller

Douglas W Spencer

Joseph Gregory Barolak

Bruce I Girrell

Jason A Lynch

Freeman Lee Hill

Freeman L Hill

Jerry E Miller

A casing inspection device with magnets and a multi-component flux sensors. The multicomponent sensor enables better definition of the size of defects, particularly in the azimuthal direction.

Apparatus and method of using multi-component measurements for casing evaluation

A casing inspection device with magnets and flux sensors. Measurements of axial motion of the device are used to get better definition of the axial extent of casing defects. A contact device may be used for motion measurement. The output of the contact device may be used to control the acquisition of flux measurements direction.

Apparatus and method of using accelerometer measurements for casing evaluation

A casing inspection device with magnets and flux sensors. The sensors provide measurements of absolute levels of magnetic flux that are indicative of changes in casing thickness and/or permeability.

Apparatus and method of determining casing thickness and permeability

The casing cutter disclosed herein is useful for severing downhole tubulars and comprises a body, slips, a cutting head, cutting blades, and actuators for operating the cutting head and cutting blades. The casing cutter can be anchored within casing wellbore with the slips to provide anchoring support during the cutting operation. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blades away from the cutting head. The cutting blades are actuated by a hydraulic motor operatively coupled to the cutting blades by a series of gears.

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Empire, MI, United States of America

Chris J Walter