A system for gathering downhole measurements includes a drill bit, at least one nozzle receptacle located on the drill bit, and a sensor system. The sensor system has a sensor housing, a flow path extending through the sensor housing, wherein the flow path allows fluid to flow through the sensor housing, and an internal cavity provided within the sensor housing separate from the flow path. The internal cavity contains components that include at least one sensor for gathering data about drill bit conditions and downhole conditions, a powering unit, a printed circuit board, and an electrical conductor, wherein the sensor housing is installed in the at least one nozzle receptacle.

A system for gathering downhole measurements includes a drill bit, at least one nozzle receptacle located on the drill bit, and a sensor system. The sensor system has a sensor housing, a flow path extending through the sensor housing, wherein the flow path allows fluid to flow through the sensor housing, and an internal cavity provided within the sensor housing separate from the flow path. The internal cavity contains components that include at least one sensor for gathering data about drill bit conditions and downhole conditions, a powering unit, a printed circuit board, and an electrical conductor, wherein the sensor housing is installed in the at least one nozzle receptacle.

The shear head device includes a monitoring head having geophones and transmitters inside a cylindrical body. A shear head is coupled to the monitoring head from below. The shear head has a tubular structure with a plurality of apertures formed around an outer surface of the tubular structure. A plurality of cones are coupled with modified tips and disposed within the plurality of apertures. A sheet supports the plurality of cones inside the shear head. The sheet is selectively movable between a first radial position and a second radial position for the modified tips to apply radial force to the rock by adjustment of an internal pressure of the shear head. The transmitters transmit the recorded acoustic emission to a computing system for determining properties of the rock while the shear head device is testing the rock in the bore.

A drilling system and a method of drilling a wellbore in an earth formation. A first antenna is disposed at a first location near a drill string. A second antenna is disposed at a second location of the drill string. The first antenna has a first specific moment. One of the first antenna and the second antenna is operated as a transmitter that transmits a transmitted signal, and the other is operated as a receiver that receives a received signal in response to the transmitted signal. The processor determines a property of an earth formation from the received signal.

A drilling system and a method of drilling a wellbore in an earth formation. A first antenna is disposed at a first location near a drill string. A second antenna is disposed at a second location of the drill string. The first antenna has a first specific moment. One of the first antenna and the second antenna is operated as a transmitter that transmits a transmitted signal, and the other is operated as a receiver that receives a received signal in response to the transmitted signal. The processor determines a property of an earth formation from the received signal.

In a method of generating a geomechanical model of a wellbore, at least one vibration sensor (422) is affixed to a drill bit unit (420). Electronic drilling recorder data (412) regarding drilling of the wellbore is received. Bit vibration data is received from the vibration sensor (422). A transform is applied to the electronic drilling recorder data and to the bit vibration data so as to generate filterable data. At least one undesirable component is filtered from the filterable data, thereby generating clean data. The clean data is applied to an artificial intelligence model trained to associate data with a plurality of geomechanical model components, thereby generating geomechanical model corresponding to the electronic drilling recorder data and the bit vibration data.

A rotary tool for operation within an underground borehole or within tubing in a borehole has a tool body and at least one sensor-containing unit attached to the tool body and positioned to contact the conduit wall. The sensor-containing unit includes an exterior portion to contact the borehole or tubing wall and one or more sensors is located in a cavity between the exterior portion and the tool body. The sensor-containing unit may be formed from the exterior portion, an attachment portion for attachment to the tool body, and one or more connecting portions extending between the attachment and exterior portions, with the sensor-containing cavity between the attachment and exterior portions. Possible rotary tools include drill bits, reamers, mills, stabilizers, and rotary steerable systems.

A rotary tool for operation within an underground borehole or within tubing in a borehole has a tool body and at least one sensor-containing unit attached to the tool body and positioned to contact the conduit wall. The sensor-containing unit includes an exterior portion to contact the borehole or tubing wall and one or more sensors is located in a cavity between the exterior portion and the tool body. The sensor-containing unit may be formed from the exterior portion, an attachment portion for attachment to the tool body, and one or more connecting portions extending between the attachment and exterior portions, with the sensor-containing cavity between the attachment and exterior portions. Possible rotary tools include drill bits, reamers, mills, stabilizers, and rotary steerable systems.

A crowding avoidance sub (CAS), in or above a bottom hole assembly (BHA), e.g., between drill string and BHA, sends sensor data over lines in a modified housing and flex lines accommodating and reporting relative axial motion between movable parts of a single sub, typically below a cushion, jar, or shock sub, possibly even a motor. Sensors connected to an Intellisys™ data connection system provide a data stream to a computer at the surface, and may include downhole preprocessing, but need not. The drive system of the hook feed rate is directly controlled in real time by a data station receiving, and operating based on, “travel” or “progress” information received from downhole sensors of the CAS indicating effectively instantly and electronically (rather than slower signals through drilling fluid) whenever the string progresses dangerously faster than the bit, and must be slowed or stopped.

A crowding avoidance sub (CAS), in or above a bottom hole assembly (BHA), e.g., between drill string and BHA, sends sensor data over lines in a modified housing and flex lines accommodating and reporting relative axial motion between movable parts of a single sub, typically below a cushion, jar, or shock sub, possibly even a motor. Sensors connected to an Intellisys™ data connection system provide a data stream to a computer at the surface, and may include downhole preprocessing, but need not. The drive system of the hook feed rate is directly controlled in real time by a data station receiving, and operating based on, “travel” or “progress” information received from downhole sensors of the CAS indicating effectively instantly and electronically (rather than slower signals through drilling fluid) whenever the string progresses dangerously faster than the bit, and must be slowed or stopped.