A method for selecting a drill bit, the method including selecting a first drill bit design, simulating the first drill bit design drilling an earth formation under selected conditions, graphically displaying at least a portion of the simulating, analyzing results of the simulating, wherein the analyzing comprises reviewing a steerability of the first bit design, selecting a second drill bit design, simulating the second drill bit design drilling an earth formation under selected conditions, graphically displaying at least a portion of the simulating, analyzing results of the simulating, wherein the analyzing comprises reviewing a steerability of the second bit design and selecting, based upon the analyzing, a bit design is disclosed.

A method for selecting a drill bit, the method including selecting a first drill bit design, simulating the first drill bit design drilling an earth formation under selected conditions, graphically displaying at least a portion of the simulating, analyzing results of the simulating, wherein the analyzing comprises reviewing a steerability of the first bit design, selecting a second drill bit design, simulating the second drill bit design drilling an earth formation under selected conditions, graphically displaying at least a portion of the simulating, analyzing results of the simulating, wherein the analyzing comprises reviewing a steerability of the second bit design and selecting, based upon the analyzing, a bit design is disclosed.

The present disclosure relates to an earth-boring drill bit including a shank, an internal region formed from at least a first alloy using additive manufacturing and secured to the shank, and an exterior region formed from at least a second alloy using additive manufacturing and secured to the internal region using additive manufacturing. The first alloy and the second alloy have a different modulus of elasticity, yield strength, resilience, ductility, hardness, fracture toughness, wear resistance, corrosion resistance, or erosion resistance. The disclosure further includes a method of manufacturing such an earth-boring drill by depositing a plurality of layers according to a drill bit specification using additive manufacturing.

A drilling assembly and method of drilling a wellbore is disclosed. The drilling assembly includes a steering device having a tilt device and an actuation device. A first section and a second section of the drilling assembly are coupled through the tilt device, wherein the first section is attached to a drill bit. The actuation device includes an electromechanical actuator and causes a tilt of the tilt device to cause the first section attached to the drill bit and the drill bit to tilt relative to the second section. The wellbore is drilled using the drill bit. The electromechanical actuator is actuated to tilt the tilt device to cause the first section attached to the drill bit and the drill bit to tilt relative to the second section and to maintain the tilt geostationary while the drilling assembly is rotating to form a deviated section of the wellbore.

A downhole component including a first portion; a second portion; a controlled failure structure between the first portion and second portion. A method for improving efficiency in downhole components.

A downhole component including a first portion; a second portion; a controlled failure structure between the first portion and second portion. A method for improving efficiency in downhole components.

A method of designing a drill bit is disclosed. The method includes determining a location of a bit coordinate system in a wellbore coordinate system and generating a bit profile based on an angular coordinate around a wellbore axis of a wellbore and the location of the bit coordinate system. The bit profile is based on a cutting edge of a first cutting element on an exterior portion of a first blade. The method also includes determining a cutting layer volume based on the bit profile and identifying a weak zone based on the cutting layer volume being less than a predefined minimum cutting layer volume. The method includes determining a location for a second cutting element on the exterior portion of a second blade based on the weak zone.

A method of designing a drill bit is disclosed. The method includes determining a location of a bit coordinate system in a wellbore coordinate system and generating a bit profile based on an angular coordinate around a wellbore axis of a wellbore and the location of the bit coordinate system. The bit profile is based on a cutting edge of a first cutting element on an exterior portion of a first blade. The method also includes determining a cutting layer volume based on the bit profile and identifying a weak zone based on the cutting layer volume being less than a predefined minimum cutting layer volume. The method includes determining a location for a second cutting element on the exterior portion of a second blade based on the weak zone.

A drill bit in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment.

A drill bit in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment.