Baker Hughes Corporation

Element Six Gmbh

Element Six (production) (pty) Ltd.

Allen Sinor

Roger W Fincher

Larry A Watkins

John Lindley Baugh

Peter S Aronstam

Danny Eugene Scott

Anthony Albert DiGiovanni

Nicholas J Lyons

Suresh G Patel

John Hewitt Liversage

Dan E Scott

Matthew S Hale

Joel Wilmes

Konstantin E Morozov

A cutting element for use in a drilling bit and/or milling bit having a cutter body made of a substrate having an upper surface, and a superabrasive layer overlying the upper surface of the substrate. The cutting element further including a sleeve extending around a portion of a side surface of the superabrasive layer and a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer.

Cutting element and method of forming thereof

A novel well bore drilling system and method utilizes independently deployable multiple tubular strings to drill, line and cement multiple hole sections without intervening trips to the surface. In one embodiment, the drilling system includes two or more independent, telescoping, tubular members that form a nested tubular assembly and one or more sensors disposed on the nested tubular assembly. The nested tubular string is deployed in the wellbore in conjunction with a Bottom Hole Assembly (BHA). In some embodiments, a drilling motor for rotating a drill bit is also positioned in the tubular assembly. The sensors can be disposed in a stator of the drilling motor or adjacent the motor. Also, in embodiments, the sensors can be positioned on extensible members that can position the sensor or sensors adjacent the wellbore wall.

Drilling methods utilizing independently deployable multiple tubular strings

A device and system for improving efficiency of subterranean cutting elements uses a controlled oscillation super imposed on steady drill bit rotation to maintain a selected rock fracture level. In one aspect, a selected oscillation is applied to the cutting element so that at least some of the stress energy stored in an earthen formation is maintained after fracture of the rock is initiated. Thus, this maintained stress energy can thereafter be used for further crack propagation. In one embodiment, an oscillation device positioned adjacent to the drill bit provides the oscillation. A control unit can be used to operate the oscillation device at a selected oscillation. In one arrangement, the control unit performs a frequency sweep to determine an oscillation that optimizes the cutting action of the drill bit and configures the oscillation device accordingly. One or more sensors connected to the control unit measure parameters used in this determination.

Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting levels

Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements

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Conroe, TX, United States of America

Allen Sinor