Abstract: An accumulator system includes a chamber configured to receive a first fluid, a piston configured to move within the chamber to pressurize and drive the first fluid out of the chamber, a driving shaft coupled to the piston, a screw adapter coupled to the driving shaft, a plurality of anti-rotation shafts, and an electric actuator configured to couple to the screw adapter and to rotate the screw adapter to axially move the driving shaft. The piston includes a body defining a first aperture and a plurality of counterbores. The driving shaft is coupled to the piston via the first aperture. The piston is configured to slide over the plurality of anti-rotation shafts via the plurality of counterbores.

Abstract: A tool trap system includes a housing defining a bore, a shaft coupled to the housing, and a flapper and an actuation system coupled to the shaft. The flapper selectively obstructs the bore through the housing. The actuation system includes a lever coupled to and configured to rotate the shaft, a cylinder configured to contact the lever, a hydraulic cylinder, and a piston rod extending through the cylinder and the hydraulic cylinder. The cylinder is configured to move axially along a longitudinal axis of the cylinder to rotate the lever. In response to manual actuation of the tool trap system, the hydraulic cylinder remains in place as the cylinder moves axially. In response to powered actuation of the tool trap system, a fluid pumped into the hydraulic cylinder axially moves the hydraulic cylinder, and the piston rod remains in place as the cylinder moves axially.

Abstract: A gas vent tool can include a body with a flow passage having upstream and downstream sections, a valve that selectively permits and blocks flow between the upstream section and an exterior of the gas vent tool, and a valve that selectively permits and blocks flow between the upstream and downstream sections. A gas vent system can include a gas vent tool connected longitudinally between an intake tool and a pump, the intake tool being configured to receive formation fluids therein, and the pump being configured to pump the formation fluids to surface. The gas vent tool can include a valve that selectively permits and blocks flow between an interior flow passage and an annulus external to the gas vent tool, and a valve that selectively permits and blocks flow between upper and lower sections of the flow passage.

Abstract: A blowout preventer includes a main body having a through bore. A pressure chamber is located adjacent to and transverse to the through bore. A gate is disposed in the pressure chamber. An insert is disposed in the main body and defines an opening therethrough parallel to the through bore. The insert also defines a passage therethrough transverse to the through bore for passage of the gate.

Abstract: The present invention refers to a mandrel assembly for chemical injection in use in an oil well production string where the water depth can reach 3,000 m, exerting extreme hydrostatic pressures on the mandrel. The mandrel assembly is capable of dosing the chemical fluid flow rate to avoid some types of unwanted situations in the production string, mainly related to fouling. It has the characteristic of not using injection valves having small diameters, causing the annular space between the mandrel body and the inner part to ensure greater space for the flow of chemical fluid, thus reducing the likelihood of a possible plugging. Such characteristics ensure lower maintenance interventions, thus generating lower costs and increasing well reliability.

Abstract: Systems and method for injection a chemical into a wellbore. A chemical injection system may comprise a first valve, a chemical line, a pilot line, an injection line, and a backflow prevention valve disposable in the injection line. A production fluid recovery system may comprise a chemical injection system, a first valve, a pilot line, an injection line, a backflow prevention valve, a production tree, a wellhead, and production tubing. A method for actuating a valve in a chemical injection system may comprise pushing a fluid into a chemical line, pressurizing a pilot line to open a first valve, pushing the fluid through the first valve, increasing pressure in the pilot line to open a second valve, pushing the fluid through the second valve, pushing the fluid through a chemical line, and injecting fluid into a wellbore from the chemical line.

Abstract: An apparatus, system, and method are provided for injecting carrier sleeves into a wellbore. The injection system is capable of individually indexing a selected sleeve from a sleeve magazine into an injector bore and axially aligning the sleeve with the bore with a retaining device. The retaining device prevents a subsequent sleeve from being indexed into the bore from the magazine. The selected sleeve can be restricted from free fall using a staging mechanism, which can subsequently be opened to permit the selected sleeve to fall into a staging bore. The staging bore is then fluidly isolated from the injector bore and the wellbore, pressure in the staging bore is equalized with the wellbore, and then opened to the wellbore for injecting the sleeve into the wellbore. The sleeve can be axially aligned and radially centered with the injector bore using a tapered portion in the bore or the staging mechanism.

Abstract: A downhole fluid injection system comprising: a first fluid line including a first end, a second end, and an intermediate portion, the first end being connected to a fluid source, the first fluid line being extendable along a first portion of a wellbore; and a second fluid line including a first end section, a second end section, and an intermediate section, the second fluid line being extendable along a second portion of the wellbore that extends at an angle relative to the first portion and includes a plurality of fluid injectors arranged along the intermediate section.

Abstract: A chemical tank level system for a wellbore chemical injection tank is provided. The system includes a pressure sensor is located downstream of the chemical injection tank where the fluidic pressure is essentially the same as the fluidic pressure at the base of the chemical tank. The pressure sensor sends a signal indicative of the fluidic pressure to a tank level sensor module. The tank level sensor module receives the signal from the pressure sensor. A processor takes a series of pressure sensor signals over a sample window and calculates an average of the signals over a defined time window.

Abstract: An apparatus for use in a well bore is described herein. The apparatus includes a one-piece housing having a length in an axial direction from a first end to a second end, and end wall and a sidewall defining a cavity within the housing. The apparatus also includes a frame inside the cavity. The frame includes a charge receptacle, a detonator receptacle, a first electrical contact and a second electrical contact. The apparatus further includes a conductive material coupled with the first electrical contact.

Abstract: A hydrocarbon extraction system that includes an erosion control system. The erosion control system includes a housing defining a first inlet, a second inlet, and an outlet. The housing receives and directs a flow of a particulate laden fluid between the first inlet and the outlet. A conduit rests within the housing. The conduit changes a direction of the particulate laden fluid and reduces erosion of the housing. The conduit is inserted into the housing through the second inlet. The conduit defines a plurality of apertures between an exterior surface and an interior surface of the conduit. The apertures direct the fluid into a conduit cavity. The conduit guides the fluid entering the conduit cavity to the outlet. The erosion control system excludes a plug and/or a sleeve around or in the conduit.

Abstract: An integrated fracking system includes a substructure assembly including one or more frame rails. The integrated fracking system includes a pump subsystem having a frac pump and a motor. The pump subsystem is coupled to the frame rails of the substructure assembly. The integrated fracking system includes a variable frequency drive, a transformer, and a cooling subsystem, each coupled to the frame rails of the substructure assembly.

Abstract: A joint assembly allows a riser system to have a weak point that can fail at a known location and tension value without reducing the riser pressure containment capacity. The joint assembly includes a standard riser pipe machined to remove material, for example, to form a groove. The joint assembly also comprises means for restoring pressure capacity. For example, the means for restoring pressure capacity include a combination of a thick-bodied clamp and a split insert ring. The split insert ring can bridge between the groove and the clamp, at least partially transferring the pressure load contained inside the machined pipe to the clamp.

Abstract: The method of providing a clamping connection comprising providing one or more clamping hubs, providing two or more clamping segments to engage the clamping hubs, constraining the clamping segments to move approximately radially with respect to the clamp hubs, providing a tension band around the clamping segments which slides circumferentially relative to the clamping segments, and adjusting the ratio of the contact area of the tension band to the clamping hubs and the area of the clamping hubs to compensate for the difference in loading on the clamping hub due to sliding friction between the tension band and the clamping hubs.

Abstract: A device and method for manipulating a robotic end effector in a well. Actuators manipulate the end effector independently through multiple degrees of freedom to improve the perspective of the end effector. An imaging sensor may be used to image, measure and identify features of a well and objects located therein. The sensor may be an ultrasound transducer, camera or x-ray sensor arranged radially, axial or distributed over a 2D surface. The end effector may be connected to a tool, such as a fishing tool, a welder, a milling tool, or a repair tool.

Abstract: A reverse flow gas separator having a housing having a housing intake and a first void space within the housing. The reverse flow gas separator further includes a driveshaft disposed adjacent to the first void space. The drive shaft is hollow and comprises a second void space disposed within the interior of the drive shaft. The second void space is continuous from a driveshaft intake to an opening in a terminal end of the driveshaft.

Abstract: A well servicing pump system for a hydraulic fracturing system includes a first permanent magnet motor, second permanent magnet motor, and crankshaft. The first and second permanent magnet motors each include a rotor mechanically coupled to or integrated with the crankshaft. The well servicing pump may include gearboxes coupled between the rotors and the crankshaft. The well servicing pump system also includes a fluid section that includes an inlet, a pressurization chamber, and an outlet. The inlet and outlet are fluidly coupled to the pressurization chamber. The well servicing pump also includes a plunger mechanically coupled to the crankshaft, the plunger at least partially positioned within the pressurization chamber.

Abstract: A method for forming a guide for a top drive unit includes connecting a lower track member to a lower mast section and connecting an upper track member to an upper mast section and telescoped with the lower track section. A slider is slidably positioned about the upper track member so the slider is movable along the upper track member. The slider has a lateral cross-sectional profile substantially the same size and shape as a lateral cross-sectional profile of the lower track member. The skate is slidably positioned about the lower track member to be movable along the lower track member and onto the slider. The skate travels along the upper track member via the slider. The skate is connectable to a top drive unit so the top drive unit is movable along the lower track member and the upper track member.

Abstract: A wellhead is provided. The wellhead comprises a high pressure wellhead housing; a casing hanger assembly located within the high pressure wellhead housing; and a casing supported on the casing hanger assembly. The casing hanger assembly is arranged so that the casing is able to move relative to the high pressure wellhead housing. This may be to accommodate well growth experienced by the wellhead during use.

Abstract: Method for replacing a chemical injection valve connected to a well head via an injection line housing, where an end of an injection line is provided within the injection line housing, includes: connecting an injection line plugging tool to the chemical injection valve; providing threads in the end of the injection line by means of the injection line plugging tool; connecting an injection line plug to the threads of the injection line by the injection line plugging tool; disconnecting the chemical injection valve from the injection line housing; connecting a further chemical injection valve to the injection line housing; connecting the injection line plugging tool to the further chemical injection valve; removing the injection line plug from the end of the injection line by the injection line plugging tool; disconnecting the injection line plugging tool from the further chemical injection valve.