Abstract: A cutting element includes a substrate and an ultrahard layer on an upper surface of the substrate, a top surface of the ultrahard layer having a ridge extending along a major dimension of the top surface from an edge of the top surface, where the ridge has a peak with at least two different roof radii of curvature, and at least two sidewalls sloping in opposite directions from the peak of the ridge at a roof angle, where a first roof angle of the ridge proximate the edge is smaller than a second roof angle in a central portion of the ridge around a longitudinal axis of the cutting element.

Abstract: The present invention provides a bottom-hole impact-rotation stepping combined unloading rock-breaking efficient drilling system, including a housing, a drive assembly, a universal joint, a transmission shaft, a rotational impact assembly, and a drill bit; the transmission shaft is connected with the housing; the rotational impact assembly includes a rotational transmission assembly for conveying a rotational power to the drill bit and an impact assembly for providing a high frequency axial impact power to the drill bit; when the rotational transmission assembly rotates along with the transmission shaft, the impact assembly applies a high frequency impact force along a drilling axial direction to the rotational transmission assembly; an annular drill bit is disposed at an outer end of a drill bit body of the drill bit; a central drill bit is slidably disposed on an inner ring end surface of the annular drill bit; an inwardly-recessed cylindrical region is formed between a head end of the annular drill bit and

Abstract: A centralizer for use in high speed rotor dynamics applications includes a housing having a first end portion and a second end portion. The centralizer further includes a rotatable shaft positioned within a cavity of the housing. The centralizer also includes flexure springs that are each attached to and extend between the first end portion and the second end portion. The flexure springs are compressible toward a middle portion of the housing that is between the first end portion and the second end portion. The centralizer further includes roller wheels attached to the flexure springs.

Abstract: The present disclosed technology relates to a downhole tool activation device, and a method of using the device, where the valve is configured to open when the counter device has moved an activation distance in an activation direction, a piston engaged with the counter device, having a wellbore pressure from a fluid source applied to a first side, and a pressure in a fluid reservoir applied to the second side, the piston configured to move a step distance in a first direction when the wellbore pressure exceeds the pressure in the fluid reservoir, and configured to move a step distance in an opposite direction driven solely by a greater pressure in the fluid reservoir than the wellbore pressure, and a flow restrictor in fluid communication with the fluid reservoir and fluid source, configured to restrict the flow of fluid between the fluid source to the fluid reservoir.

Abstract: A hanger system for use with a housing of a wellhead includes a hanger assembly. The hanger assembly includes a hanger having a respective radially-outer surface and a radially-extending surface, as well as a first annular wedge having a respective radially-outer surface with a first annular wedge surface texture. The radially-extending surface is configured to engage a shoulder of the housing of the wellhead while the hanger assembly is in a landed position within the housing of the wellhead, and the first annular wedge surface texture is configured to engage a respective-radially inner surface of the housing of the wellhead while the hanger assembly is in a sealed position within the housing of the wellhead.

Abstract: A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing, a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed within the bearing housing, wherein the bearing mandrel is configured to couple with a drill bit, a bend adjustment assembly configured to adjust a bend setting of the downhole motor, a lock piston including an unlocked position, and a locked position configured to lock the bend setting of the bend adjustment assembly, one or more hydraulic pumps configured to actuate the lock piston into the unlocked position to unlock the bend adjustment assembly, and an electronics package configured to indicate the bend setting of the bend adjustment assembly.

Abstract: A system for improving a steam oil ratio (SOR) includes a boiler fluidly coupled with a downhole portion of a steam system via at least a boiler conduit, wherein the boiler is configured to schedule super-heat delivered to the downhole portion to optimize the SOR associated with the system.

Abstract: Examples described herein provide a method that includes performing a geomechanical analysis for a wellbore for each of a plurality of sand screens. The method further includes selecting a sand screen from the plurality of sand screens based at least in part on the geomechanical analysis. The method further includes deploying the selected sand screen in a tubular of the wellbore to filter particulate passing through an opening of the tubular.

Abstract: The invention relates to a drill rod for transferring a torque comprising an elongate rod base body, along which runs at least one base line for a fluid and/or electric current and/or data, an upper suspension device for suspending the drill rod from a support element, a rotary bearing, which is arranged between the suspension device and the rod base body, wherein the rod base body is mounted rotatably relative to the suspension device about a rod longitudinal axis, and a rotary feedthrough, through which a line connection is formed between at least one feed line, which is fixed relative to the support element, and the at least one base line of the rotatably-mounted rod base body. The invention is characterized here in that the rotary bearing is arranged axially distanced from the rotary feedthrough, and in that the rotary bearing comprises an axial bearing which is arranged above or below the rotary feedthrough.

Abstract: Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations to enhance hydrocarbon production from the subsurface formations may include providing a manifold coupling having a manifold coupling passage with a manifold coupling axis. The manifold coupling may include a first inlet passage positioned to provide fluid flow between a first fracturing fluid output and the manifold coupling passage, and a second inlet passage positioned opposite the first inlet passage to provide fluid flow between a second fracturing fluid output and the manifold coupling passage. The first inlet passage may have a first inlet passage cross-section at least partially defining a first inlet axis extending transverse relative to the manifold coupling axis. The second inlet passage may have a second inlet passage cross-section at least partially defining a second inlet axis extending transverse relative to the manifold coupling axis and not being co-linear with the first inlet axis.

Abstract: A cutting element includes a base and a cutting face at opposite axial ends, a side surface extending between the base and the cutting face, an edge formed between the cutting face and the side surface, an edge chamfer having a uniform size around the entire edge, and a geometric shape formed on the cutting face and defined by a concave boundary with respect to a longitudinal axis of the cutting element. The concave boundary includes multiple rounded vertices, each rounded vertex located proximate to the edge chamfer and forming a cutting tip and multiple geometric shape sides connecting the rounded vertices, wherein the geometric shape sides are concave with respect to the longitudinal axis.

Abstract: A wellbore system includes an adapter configured to couple to a downhole component. The wellbore system also includes a retrieval tubular, having a bore extending therethrough. The wellbore system further includes a piston assembly coupled to the retrieval tubular, wherein the bore is in fluid communication with a cavity of the piston assembly. The wellbore system includes a stem configured to couple to a casing section, the casing section being supported by a hanger. The wellbore system also includes a sleeve forming at least a portion of the piston assembly, the sleeve configured to couple to the adapter such that, responsive to a force applied by the piston at the casing section, the sleeve applies an upward force to the adapter.

Abstract: A method for plugging a lost-circulation zone in a subsurface formation includes introducing a drillstem including a drilling stabilizer into a wellbore during drilling operations, the drilling stabilizer including at least stabilizer blades and a pressure sensor. Each stabilizer blade includes at least an inner chamber, a light source, and a window. The method further includes injecting a lost-circulation fluid, including a plurality of lost-circulation particles, into the wellbore. Each lost-circulation particle includes a lost-circulation additive encapsulated by a photo-sensitive coating. The method further includes measuring a pressure differential with the pressure sensor and providing a pressure signal to the light source of each stabilizer blade, thereby actuating the light source to produce a light beam, which allows the light beam to contact the photo-sensitive coatings of the lost-circulation particles to release the lost-circulation additives.

Abstract: Systems and methods presented herein include sidewall coring tools used to return core samples of rock from a sidewall of a wellbore as part of a data collection exercise for exploration and production of hydrocarbons. In particular, the systems and methods presented herein perform sidewall coring of a subterranean formation using a combination of rotary and percussive coring. More specifically, the systems and methods presented herein rotate a coring cylinder of a sidewall coring tool back and forth less than a full rotation while pushing the coring cylinder of the sidewall coring tool against a bore wall of a wellbore, and push the coring cylinder of the sidewall coring tool into the subterranean formation to enable extraction of a core sample of the subterranean formation.

Abstract: The invention relates to a drill rod coupling having a sleeve-shaped coupling receptacle, a pin-shaped coupling member which can be inserted axially into the coupling receptacle to form a torque proof connection, and at least one locking bolt which is directed transversely to the axial coupling direction and extends, in a locked coupling position, between the coupling receptacle and the coupling member into a locking recess, wherein the locking bolt is mounted so as to be radially adjustable between an unlocking position and a locking position. Efficient coupling is achieved in that a tensioning device is provided by means of which the locking bolt is pressed into its locking position with a predefined tensioning force, and in that the locking bolt is connected to a resetting member by means of which the locking bolt can be reset into the unlocking position when a resetting force is applied.

Abstract: A coiled tubing system includes an injector assembly configured to receive and longitudinally move coiled tubing through the injector assembly, a well control stack operatively coupled to the injector assembly and configured to receive the coiled tubing from the injector assembly, and a snap arrestor including one or more wheels configured to rotate as the coiled tubing moves longitudinally, a tachometer that measures rotations per minute (RPM), and a microprocessor that receives and converts the RPM into a real-time measured linear speed of the coiled tubing. When the real-time measured linear speed of the coiled tubing exceeds a predetermined linear speed threshold, a command signal is sent to the injector assembly to grippingly engage the coiled tubing and thereby cease longitudinal movement of the coiled tubing.

Abstract: The present invention relates generally to a portable coring machine for penetrating a surface to install or repair sub-surface structures. Coring machine may include a frame assembly and a drilling device. Frame assembly may include a plurality of interconnected bars and facilitate operating drilling device in a generally horizontal position or in a generally vertical position. Further, frame assembly may accommodate core bits of different sizes for cutting an annular hole into asphalt, concrete or other hard surface. Support members of frame assembly may be configured to support a track including a plurality of teeth. The track may engage with a gear assembly of a mounting block configured to support the drilling device. Advantageously, coring machine may be moveable along track in response to an operator rotating a crank mechanically coupled to the gear assembly.

Abstract: A fracturing device includes a power unit, and the power unit includes a muffling compartment, a turbine engine, and an air intake unit. The air intake unit is communicated with the turbine engine through an intake pipe and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is at a top of the muffling compartment and the muffling compartment has an accommodation space, the turbine engine is within the accommodation space. A fan is further provided to generate wither positive pressure or negative presser in the muffling compartment to facilitate a cooling of the turbine engine.

Abstract: The proposed technology relates to methods and devices for selective treatment of wellbores that allows treating several intervals of a productive formation in a single trip. The proposed device for implementing the method includes a mechanical anchor, hydraulic fracturing port, packers and a perforator disposed in the device's bottom part. It is lowered into a well casing to the depth of productive formation. Working fluid is supplied to the perforator via a tubing string, the well casing is perforated, and caverns are washed out. The device is positioned so that the perforation interval is situated between the packers, fixed in the well casing by the anchor, and working fluid is then cut off. Hydraulic fracturing fluid is supplied, and the productive formation's interval is isolated from the well casing's annulus by activation of the packers. Hydraulic fracturing is executed, and the device is removed from the well casing.

Abstract: A wireline jarring tool includes an elongate body having opposing upper and lower ends, a longitudinal channel defined in the elongate body and extending between the upper and lower ends and sized to loosely receive a wireline, and a jarring assembly housed within the elongate body and operable to generate a jarring force transmittable to a bottom hole assembly (BHA) once the wireline jarring tool is secured to the BHA within a wellbore. The wireline jarring tool is conveyable into the wellbore by translating longitudinally along the wireline, and actuating the jarring assembly is configured to release the BHA from a stuck position within a wellbore.