Abstract: An electric submersible pump (ESP) assembly that includes an electric motor with a splined drive shaft with drive shaft teeth, an ESP mechanically coupled to the electric motor that includes a splined ESP shaft with ESP shaft teeth, and a downhole component mechanically coupled to the electric motor that includes a splined component shaft with component shaft teeth. Splined couplings each include a central axis and grooves through the coupling with groove sidewalls sized to receive the shaft teeth. The grooves are angled relative to the central axis to form a space on either side of each tooth in each groove for at least a portion of the overlapped length of the tooth within the groove. Each coupling is engageable with the teeth of two of the drive shaft, the pump shaft, or the component shaft to mechanically couple the electric motor, the ESP, and the downhole component.

Abstract: Provided is a multilateral leg bore, a multilateral junction, and a well system. The multilateral leg bore, in one aspect, includes a unitary housing having a first end and a second opposing end defining a length (L). In accordance with this aspect, the multilateral junction includes three or more bores formed in the housing and extending along the length (L).

Abstract: An acoustic actuator for scale removal and prevention in a wellbore is described herein. For example, a system can include a tubing string deployed downhole in a wellbore. A downhole tool can be coupled to the tubing string. An acoustic actuator can be coupled to the tubing string and positioned proximate to the downhole tool. The acoustic actuator can generate an acoustic signal that can vibrate the tubing string to generate a fluidic disturbance in downhole fluid within the tubing string for removing contaminants from, or preventing formation of contaminants, on the downhole tool.

Abstract: Provided is a multilateral junction and a well system. The multilateral junction, in one aspect, includes a housing, the housing including a first housing end and a second housing end, a bore extending through the housing from the first housing end to the second housing end, and a toothed coupling profile located along an inside surface of the bore proximate the second housing end. The multilateral junction, according to this aspect, further includes a multilateral bore leg extending into the bore, the multilateral bore leg including a tubular having a first tubular end and a second tubular end. The multilateral junction, according to this aspect, further includes a toothed coupling located between the bore and the tubular and engaged with the toothed coupling profile and the tubular to axially fix the housing and the multilateral bore leg relative to one another.

Abstract: Provided is a downhole tool, a well system, and a method for forming a well system. The downhole tool, in at least one aspect, includes a two part drilling and running tool, the two part drilling and running tool including a conveyance, a smaller assembly coupled to an end of the conveyance, and a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly. The downhole tool, in accordance with this aspect, further includes a whipstock assembly coupled to the two part drilling and running tool using a coupling mechanism, and a hydraulically actuated anchoring assembly coupled to a downhole end of the whipstock assembly. The downhole tool, in accordance with this aspect, additionally includes a multilateral junction seal assembly coupled between the whipstock assembly and the hydraulically actuated anchoring assembly.

Abstract: A method may include: introducing a resin modified cement slurry into a wellbore penetrating a subterranean formation, the subterranean formation comprising a caprock and a carbon dioxide injection zone, the resin modified cement slurry comprising: a resin; a hardener; a hydraulic cement; and water; and setting the resin modified cement slurry to form a set cement wherein the set cement forms a carbonation-resistant barrier in the carbon dioxide injection zone in the subterranean formation.

Abstract: A modular gas detection system includes a primary gas chromatograph, a constant volume extractor positionable to provide a continuous fluid sample to the primary gas chromatograph, and a total hydrocarbon analyzer. The modular gas detection system also includes a processing device and a memory device including instructions executable by the processing device for causing the processing device to perform operations. The operations include adjusting a detection scheme of the primary gas chromatograph to update a detection range for the continuous fluid sample to detect different hydrocarbons within a single column. Further, the operations include controlling routing of the continuous fluid sample from the constant volume extractor to the primary gas chromatograph and the total hydrocarbon analyzer.

Abstract: Various shaped cutters are disclosed for use on a drill bit or other wellbore forming tool. In one aspect, the shaped cutter includes a plurality of radial ridge sets. Each radial ridge set includes a plurality of ridges radially extending along the cutting table between a periphery of the cutting table and the cutter axis. The cutter may be positioned on the drill bit with one of the radial ridge sets exposed to the formation so the ridges may generate multiple cracks in the formation while drilling. After the current radial ridge set becomes worn, the cutter may be repositioned on the drill bit to expose another one of the radial ridge sets, such as during a repair, refurbish, or maintenance operation. The plurality of ridges may also exploit vibrations in the drill string to enhance rock failure.

Abstract: A cement composition comprising a hydraulic cement, water and a suspension agent comprising a polymer formed via emulsion polymerization, wherein the polymer has a weight average molecular weight of at least 600,000. The cement composition may be introduced into a wellbore to cement a casing in place within the wellbore. The cement composition is able to maintain consistency and thickness even at high temperatures above 350° F.

Abstract: A method may comprise introducing an ultrasonic device into a wellbore with a cement slurry therein; generating ultrasonic waves with the ultrasonic device, wherein at least a portion of the ultrasonic waves are transmitted into at least a portion of the cement slurry; creating cavitation within at least the portion of the cement slurry with at least the portion of the ultrasonic waves; and allowing the cement slurry to set to form a hardened mass.

Abstract: A downhole gas separator and pump assembly. The downhole gas separator and pump assembly comprises a drive shaft; a first fluid mover having an inlet and an outlet; a separation chamber located downstream of the first fluid mover and fluidically coupled to the outlet of the first fluid mover; a gas flow path and liquid flow path separator located downstream of the separation chamber, having an inlet fluidically coupled to the separation chamber, having a gas phase discharge port open to an exterior of the assembly, and having a liquid phase discharge port; and a second fluid mover mechanically coupled to the drive shaft, located downstream of the first gas flow path and liquid flow path separator, and having an inlet fluidically coupled to the fluid phase discharge port of the first gas flow path and liquid flow path separator.

Abstract: Methods of treating a subterranean formation including shale include preparing a treatment fluid by mixing an aqueous base fluid and a dry polyvinyl pyrrolidone (PVP) in flake or powder form having a molecular weight between about 500,000 and about 2,000,000 and introducing the treatment fluid in the subterranean formation.

Abstract: A rotary steerable tool for directional drilling includes a tool body with a flowbore, a plurality of extendable members, each independently movable between an extended position and a retracted position, and a plurality of actuation devices, each being independently operable to control a respective one of the extendable members.

Abstract: A method for inspecting a wellbore. The method may include inducing a transient pressure pulse in the wellbore via a transient pressure pulse generator. The method may further include measuring a pressure trace of the transient pressure pulse using a pressure sensor proximate to the transient pressure pulse generator. The method may also include measuring a returned signature reflection of the transient pressure pulse using the pressure sensor. The method may further include comparing the pressure trace and the returned signature reflection to determine at least one of a type of flow barrier or a condition of the flow barrier.

Abstract: A system comprising a sensor device to perform measurements in a wellbore. The system may also include a wireless transmitter to transmit a signal representing the measurements to a wired transmission system. The wired transmission system may transmit the signal to an interrogation system. A radioisotope power source may provide electrical power to the sensor system in the wellbore.

Abstract: A multi-activation reamer optionally includes modular activation and pulse confirmation blocks for activating the reamer and confirming activation. A reamer activation signal may be communicated downhole, optionally using an activation sequence of drill string flow and rotation detectable by downhole sensors. An on-board controller receives the activation signal and opens an activation flow path in the activation block to hydraulically actuate the reamer arms. A pulse flow path is also opened in the pulse confirmation block, optionally using pressure from the activation flow path. Flow along the pulse flow path is modulated to generate a flow pattern detectable uphole of the reamer to confirm activation of the reamer.

Abstract: A rotating ball valve may be employed in a liner hanger setting tool. A rotating ball member maintains contact with a valve seat throughout the operation of the rotating ball valve, thereby preventing debris from settling on the valve seat and compromising the integrity of a seal through a fluid flow path defined through the setting tool. The rotating ball valve may be actuated by selectively applying fluid pressure to the flow path, or by mechanical manipulation. Once the fluid flow path is closed, a latch may be activated to maintain the rotating ball valve in the closed configuration and a pressure may be applied against the closed rotating ball member. A downhole movement be induced by the applied pressure to drive an expansion cone through an expandable liner hanger, to secure a liner in the wellbore.

Abstract: A downhole tool position adjustment assembly for locating a tool downhole comprising a mandrel coupled to a housing via an extend-retract mechanism. A controller communicatively connected to the extend-retract mechanism, wherein an application executing within the controller, is configured to control the extend-retract mechanism. A communication system, communicatively coupled to the controller, is configured to receive a command signal from an operator at a surface location. The extend-retract mechanism moves the mandrel relative to the housing in response to a control signal received from the controller in response to the command signal received by the communication system.

Abstract: Pressure-activated valve assemblies and methods to remotely activate a valve are disclosed. A pressure-activated valve assembly includes a valve, a latch mechanism configured to shift the valve to an open position, and a pressure-activated indexing mechanism that is initially engaged to the latch mechanism. The pressure-activated indexing mechanism is initially in an unarmed mode. After the pressure-activated indexing mechanism is in an armed mode, applying at least one cycle of threshold pressure to the pressure-activated indexing mechanism disengages the latch mechanism to shift the valve to the open position. The pressure-activated valve assembly also includes a remote-activated downhole system configured to receive an activation pressure signal having a signature profile, and in response to receiving the activation pressure signal, arm the pressure-activated indexing mechanism.

Abstract: A system can calibrate inconsistencies in a wellbore tool. The system can receive a first set of measurements and a second set of measurements with respect to different electromagnetic antennas. The system can decouple a first multi-components tensor corresponding to the first set of measurements and a second multi-components tensor corresponding to the second set of measurements. The system can determine, using the decoupled first and second multi-components tensors, a scaling factor. The system can apply the scaling factor to a raw measurement received with respect to an electromagnetic antenna of the wellbore tool positioned in a wellbore to decouple a third multi-components tensor or to decoupled components of a fourth multi-components tensor for controlling a wellbore operation.