Abstract: A shaped charge comprises a case including a wall that defines a hollow interior within the case. The wall includes an external surface and an internal surface. An explosive load is disposed within the hollow interior and positioned adjacent at least a portion of the internal surface. An initiation point chamber extends at least partially between the external surface and the internal surface of the wall. At least one self-contained, compressed explosive initiation pellet is contained within or adjacent the initiation point chamber. An exposed perforating gun carrier utilizing the shaped charge, and a method of using and producing the same are also contemplated.

Abstract: An electric motor is configured to be positioned in a well. The motor includes a housing flooded with an incompressible fluid, a seal, a stator in the housing, and a rotor-impeller. The housing is configured to affix to a tubing of the well. The housing defines an inner bore having an inner bore wall continuous with an inner wall of the tubing for flow of well fluid. The housing defines a port that can be in fluid communication with the well. The seal seals the port against ingress of fluid. The seal is movable by the well fluid to apply a pressure on the incompressible fluid to equalize pressure between the incompressible fluid and the well fluid. The rotor-impeller is configured to be positioned within the inner bore of the housing. The rotor-impeller is configured to be retrievable from the well while the stator remains in the well.

Abstract: The present invention relates to a downhole transfer system for transferring data through a well tubular metal structure arranged in a borehole of a well, comprising a well tubular metal structure having an axial direction and being arranged in the borehole providing an annulus between the borehole and the well tubular metal structure, a transceiver assembly comprising a tubular metal part mounted as part of the well tubular metal structure, the tubular metal part having an inner face, an outer face and a wall, an assembly conductive winding, such as a copper ring, connected with the inner face, a power consuming device, such as a sensor, arranged in the annulus and connected with the outer face and the power consuming device is connected to the assembly conductive winding by means of an electrical conductor, a downhole tool comprises a tool body, a tool body outer face and a tool conductive winding, wherein the assembly conductive winding has an axial extension along the axial direction and a radial extensio

Abstract: An autonomous drilling pressure control system for use with a drilling rig includes a pressure control device for controlling pressure within an annulus of an associated well, an electronic pressure sensor for monitoring pressure within the annulus, and an electronic position indicator for indicating a position of the pressure control device. A control subsystem independent of the drilling rig and responsive to the pressure sensor is provided for manipulating the pressure control device to control the pressure within the annulus of the associated well. At least one dedicated power source independent of the drilling rig supplies power to the pressure sensor and position indicator.

Abstract: A downhole centralizer operable to be coupled with a tool string and conveyed within a downhole passage, wherein the downhole passage is a wellbore or a tubular member disposed in the wellbore. The downhole centralizer may have a plurality of arms that are operable to move against a sidewall of the downhole passage to centralize at least a portion of the tool string within the downhole passage, impart an intended force against the sidewall of the downhole passage, and maintain the intended force substantially constant while the tool string is conveyed along the downhole passage and an inner diameter of the downhole passage changes.

Abstract: An assembly, including a perforating gun to perforate a subterranean wellbore, and a setting tool to install a plug within the wellbore. In addition, the assembly includes an adapter configured to connect to each of the perforating gun and the setting tool. The adapter includes an outer housing including a single-piece, integrated body that includes a first end configured to directly connect to the perforating gun, a second end configured to directly connect to the setting tool, and an internal passage. In addition, the adapter includes an electrical circuit disposed within the internal passage that is configured to route an electrical signal to cause the setting tool to install a plug within the wellbore.

Abstract: Drill bit insert with a sintered cemented carbide body including a hard phase of tungsten carbide (WC) and a binder phase wherein the cemented carbide comprises 5.0-7.0 wt % Co, 0.10-0.35 wt % Cr, and a Cr/Co weight ratio of 0.015-0.058. The cemented carbide body has a hardness of 1520-1660 Hv30 and a toughness of K1c?10.0 both measured in the bulk at the center of the longitudinal axis through the center of the insert, or ?5 mm from any surface of the insert. The insert further has a surface toughness K1c?12.0 measured at 0.5 mm below the surface of the body in a transverse direction to the longitudinal axis the insert. The invention also relates to a drill bit comprising the insert and the use of such a drill bit for drilling.

Abstract: The modular bowl system provides a detachable bowl top and a modular bottom. The bowl top detaches to allow for easy repair of the bowl system should the bowl top become damaged. The detachable modular bottom securing to the bowl body for attaching the bowl body to the annular. The modular bottom provides a fixed attachment or a rotatable attachment of the bowl body with the annular. The modular bottom provides different sized bottom flanges for attachment to different sized annulars. The bowl body rotates for positioning of the bowl and the outlets and the inlet of the bowl for attachment to the flow line.

Abstract: A gas-lift system includes a first valve configured to provide selective communication of a wellbore fluid between an interior of a production tubing an annulus defined exterior to the production tubing, a second valve configured to provide selective communication of the wellbore fluid between the interior of the production tubing and the annulus, and one or more control lines coupled to the first valve and the second valve. The one or more control lines apply a pressure differential to the first and second valves. The first valve is configured to actuate from an open position to a closed position in response to the pressure differential reaching a first pressure differential, and wherein the second valve is configured to actuate from an open position to a closed position in response to the pressure differential reaching a second pressure differential that is different from the first pressure differential.

Abstract: A drilling tool has: a casing pipe in a circular tubular shape; a cylindrical or annular ring bit rotatably fitted to a tip portion of the casing pipe; and a pilot bit inserted into an inner circumference of the ring bit for a striking force to be exerted to toward a tip end side, wherein the ring bit is engaged with and fitted to the casing pipe, projections are formed on an outer circumferential portion of the pilot bit, a recessed trench, and a housing trench, are formed in the inner circumferential part of the ring bit, a torque transmitting surface is formed in the projection, a torque receiving surface capable of abutting the torque transmitting surface is formed in the housing trench, striking force transmitting surfaces are formed in projections, and striking force receiving surfaces capable of abutting the striking force transmitting surfaces are formed in the ring bit.

Abstract: A communicative coupler for a tubular member including a hub having a longitudinal hub axis and a chamber disposed therein, a coil disposed in the hub for electromagnetically communicating with a coil of the tubular member, a shaft having a longitudinal shaft axis, a first end, and a second end, wherein the second end of the shaft is pivotally coupled to the hub, and a positioning assembly disposed in the chamber of the hub that engages the second end of the shaft, and wherein the positioning assembly is configured to allow the longitudinal shaft axis to become laterally offset from the longitudinal hub axis.

Abstract: An automated post hole digger for efficient, assisted hole digging includes a base plate having a top side separated from a bottom side forming an inner cavity. A pair of jaws is pivotably coupled to the base plate. A bottom end of each of a pair of handles is coupled to the pair of jaws to move the pair of jaws between an open position and a closed position. A hole saw is coupled to the base plate and comprises a motor, a battery pack, a piston coupled to the motor and extending through the bottom side, and a bit head that is selectively engageable with the piston. The piston is driven by the motor and the bit head is configured to break up hard soil, clay, concrete, and other material. A plurality of controls is coupled to the pair of handles to operate the hole saw.

Abstract: During slide drilling, certain transient variances in differential pressure may indicate that a subsequent and temporary variance in a toolface angle error does not indicate that drilling should be interrupted. The transient variances in the differential pressure may be within a range of particular threshold pressures.

Abstract: Methods, apparatus and systems for in-situ heating fluids with electromagnetic radiation are provided. An example tool includes a housing operable to receive a fluid flowed through a flow line and a heater positioned within the housing. The heater includes a number of tubular members configured to receive portions of the fluid and an electromagnetic heating assembly positioned around the tubular members and configured to generate electromagnetic radiation transmitted to heat the tubular members. The heated tubular members can heat the portions of the fluid to break emulsion in the fluid. Upstream the heater, the tool can include a homogenizer operable to mix the fluid to obtain a homogenous fluid and a stabilizer operable to stabilize the fluid to obtain a linear flow. Downstream the heater, the tool can include a separator operable to separate lighter components from heavier components in the fluid after the emulsion breakage.

Abstract: A telemetry system for a resource exploration and recovery system including a tubular defining a flow bore, and a superconductor wire disposed within the flow bore. A resource exploration and recovery system including a first system, a second system fluidically connected to the first system, and a telemetry system operatively connected to the first system extending into the second system, the telemetry system including a tubular defining a flow bore, and a superconductor wire disposed within the flow bore.

Abstract: A straddle packer has a multicomponent mandrel with an active mandrel component. A modular pressure cylinder reciprocates within a limited range over the active mandrel component. Pistons the modular pressure cylinder are respectively interconnected and cylinder walls of modular pressure cylinder are respectively interconnected. When fluid is pumped through a tubing string into the straddle packer, the pistons are urged in one direction along an axis of the active mandrel component while the cylinder walls are urged in an opposite direction along the axis to simultaneously compress spaced-apart packers of the straddle packer to a packer set condition.

Abstract: A circulation coupler for continuous or constant circulation of drilling mud during operation of a drill string, the circulation coupler comprising: a housing having an upper open end and a lower open end, wherein the housing has a port through the housing between the upper and lower ends; an upper rotating control device positioned in the upper open end of the housing, wherein the upper rotating control device comprises a bearing package and a sealing component for sealing engagement with a drill string; and a lower rotating control device position in the lower open end of the housing, wherein the upper rotating control device comprises a bearing package and a sealing component for sealing engagement with a drill string, wherein when a drill sting is positioned within the circulation coupler and engaged by the sealing components of the upper and lower rotating control devices a chamber is defined within the housing between the upper and lower rotating control devices around the drill string.

Abstract: A subassembly for inserting a frangible pressure disc seal in the inner conduit of a tubing string in a wellbore, particularly for a deviated wellbore, to seal the tubing string to provide pressure control while required by the operator.

Abstract: In some embodiments, systems for automatically and dynamically controlling a drill string for drilling an earth formation may include a length of drill pipe, an earth-boring tool, a drawworks, a rotational apparatus, and a pump. A control unit may store software that causes the control unit to: accept a planned trajectory; divide the planned trajectory into a predetermined number of sections, normalizing the distance; receive operational state data from the drawworks, the rotational apparatus, and the pump; at least periodically calculate a normalized performance metric at least in part by dividing a raw performance metric by a distance per section; compare the calculated normalized performance metric to a benchmark performance metric; and send a control signal to cause the drawworks, the rotational apparatus, the pump, or any combination of these to automatically change an operating parameter to better match a corresponding operating parameter that achieved the benchmark performance metric.

Abstract: A method may comprise placing a plug in a chamber of a housing, sending a carbide powder through the one or more access ports such that the carbide power is directed around the plug and deposited on the inner surface, and removing the plug from the chamber. A rolling element assembly may comprise a housing having an outer surface and inner surface, carbide powder on the inner surface, and a rolling element attached in the chamber with a portion of the rolling element extends from the chamber, wherein the rolling element is in contact with the carbide powder deposited on the inner surface.