Abstract: The present invention discloses electro-hydraulic hybrid drive sand-mixing equipment, including a skid base, an electric motor, a hydraulic pump, a discharge centrifugal pump, a suction centrifugal pump, a mixing tank, a dry additive system, a liquid additive system, and a sand auger system. The electric motor, the hydraulic pump, the discharge centrifugal pump, the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system are integrally skid mounted on the skid base. There are two electric motors, including a first electric motor and a second electric motor. The first electric motor drives the discharge centrifugal pump, and the second electric motor actuates the hydraulic pump, to drive the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system. The electric motor is an integrated variable-frequency drive electric motor.

Abstract: A well case brushing and surge blocking apparatus includes a housing, a frame, an actuating arm, a gear assembly, a hydraulic motor, a hydraulic speed controller, and a hydraulic counterbalance. The housing is laterally connected to the frame. The gear assembly is laterally mounted to the frame and positioned opposite of the housing. The actuating arm is positioned within the housing as a stator of the hydraulic motor is externally mounted to the gear assembly, and a rotor of the hydraulic motor and the actuating arm is torsionally coupled with each other through the gear assembly. The hydraulic speed controller and the hydraulic counterbalance are mounted to the frame. The hydraulic motor is in fluid communication with the hydraulic speed controller and the hydraulic counterbalance so that a sand line of rig can be looped and operated through the well case brushing and surge blocking apparatus.

Abstract: A pressurizable assembly which comprises first and second assemblies. The first assembly has a plurality of cam grooves while the second assembly is size and shaped to intimately receive and mate with the first assembly. The second assembly has a connection member a plurality of radially mounted locking pin mechanisms for interacting with one of the plurality of spaced apart cam grooves. Axial movement of the second assembly, toward and away from the first assembly, causes the plurality of locking pin mechanisms to follow along the cam grooves to an intermediate locking position which locks the second assembly with the first assembly, while a subsequent axial movement of the second assembly, toward and away from the first assembly, causes the plurality of locking pin mechanisms to follow along the plurality of cam grooves and disengage the second assembly from the first assembly.

Abstract: A system including a mud bucket with a clam shell enclosure and a storage tank. The clam shell enclosure can have a first portion and a second portion, with the second portion being rotationally coupled to the first portion, where the first portion and the second portion are configured to form a sealed chamber around a joint of a tubular string when the second portion is rotated into engagement with the first portion, where the sealed chamber is configured to receive expelled fluid from the tubular string when the joint is unthreaded, and the storage tank is configured to receive and store the expelled fluid from the sealed chamber while the mud bucket is located at the well center.

Abstract: Embodiments of systems and methods for supplying fuel, enabling communications, and conveying electric power associated with operation of a hydraulic fracturing unit of a plurality of hydraulic fracturing units are disclosed and may include a fuel line connection assembly configured to be connected to the first hydraulic fracturing unit and to supply fuel from a fuel source to a gas turbine engine connected to the hydraulic fracturing unit. A system also may include a communications cable assembly configured to be connected to the hydraulic fracturing unit and to enable data communications between the hydraulic fracturing unit and a data center or another hydraulic fracturing unit. A system further may include a power cable assembly configured to be connected to the hydraulic fracturing unit and to convey electric power between the hydraulic fracturing unit and a remote electrical power source or the plurality of hydraulic fracturing units.

Abstract: Systems and methods for landing a tubing hanger in a wellhead, landing a tree on the wellhead, and making electrical and hydraulic couplings between the tree and the tubing hanger without having to orient the tree or the tubing hanger relative to each other are provided. This is accomplished using a seal sub that is coupled to the tree and lowered with the tree into contact with the tubing hanger located in the wellhead. The seal sub features an electrical conductor that facilitates electrical coupling of the tree to the tubing hanger. The tubing hanger and seal sub may include a metal-to-metal and elastomeric seal arrangement designed to seal off electrical and hydraulic connections between these components when, the tree is positioned within the wellhead.

Abstract: Methods and systems pertaining to generating a startup or other operating order of pumps of a pumping system for performing a subterranean formation fracturing operation, and/or another pumping operation, and for coordinating distribution of flow rates to the pumps for performing the pumping operation.

Abstract: Provided is a fluid loss device, a well system, and a method for fracturing a well system. The fluid loss device, in this aspect, includes a dissolvable member coupled to an opening sleeve, the dissolvable member operable to fix the opening sleeve in a first opening sleeve position when an internal prop sleeve is in the first prop sleeve position and for a period of time after the internal prop sleeve moves to the second prop sleeve position, and then dissolve triggering the opening sleeve to move from the first opening sleeve position to the second opening sleeve position.

Abstract: A forced separation device includes a transmission shaft, a main shaft, an electromagnetic transmission mechanism, a blasting separation mechanism and a pressure-resistant cabin. A pressing cover is fastened to the upper portion of the pressure-resistant cabin. The electromagnetic transmission mechanism is provided with a driving chuck and a driven chuck. The driving chuck is connected with the transmission shaft, the driven chuck is connected with the main shaft, the pressing cover is welded with the transmission shaft, and the driven chuck is welded with the lower portion of the pressure-resistant cabin. The blasting separation mechanism is provided with explosive packages and detonators. A plurality of explosive packages are distributed between the pressing cover and the top surface of the pressure-resistant cabin, and each explosive package is connected with the corresponding detonator respectively. The pressure-resistant cabin is further internally provided with a storage battery.

Abstract: A concentric valve positionable in a wellbore includes a valve body including an outer surface and a central passage, a receptacle disposed in the central passage and defining a chamber disposed therein, and a radial port extending between the receptacle and the outer surface to provide fluid communication between the chamber of the receptacle and an environment surrounding the concentric valve, an inner tubular member received in the receptacle of the valve body, wherein the inner tubular member includes a seal assembly configured to sealingly engage an inner surface of the receptacle, and a bypass passage extending around the receptacle of the valve body and circumferentially spaced from the radial port, wherein the bypass passage provides fluid communication between a first end of the central passage and a second end of the central passage opposite the first end.

Abstract: A system includes a high-pressure static mixer. The system also includes a clean fluid system that provides clean fluid to the first high-pressure static mixer at a first fluid velocity and a proppant fluid system that provides a proppant concentrate to the first high-pressure static mixer at a second fluid velocity. Additionally, the system includes a wellhead in fluid communication with the first high-pressure static mixer. The wellhead receives a mixed fluid including the clean fluid and the proppant concentrate from the first high-pressure static mixer.

Abstract: A high capacity universal connector for use in connecting tubular members and a method for sealing the tubular members is provided. First and second tubular members are provided which each have ends that are brought into face-to-face engagement by a connector. A metal sealing element seals against conical surfaces at the ends of the first and second tubular members and enables the entire surface of the end of one tubular member to be bought into engagement with the surface of the end of the other tubular member so as to improve the bending and compression capacity of the assembly comprising the tubular members and the metal sealing element. A metal sealing ring for use in this assembly is also provided, along with a gasket retention assembly.

Abstract: A wellbore is formed within a rock formation. At least a portion of the wellbore is filled with pressurized fluid. A pressure of the pressurized fluid is cycled between 40% of an expected fracture pressure of the rock formation and 85% of the expected fracture pressure of the rock formation. The rock formation is fractured responsive to the cycling pressure.

Abstract: The present invention discloses a drilling system and method of a submarine drilling rig, relating to the technical field of drilling equipment. The system includes a barge, an umbilical cable, a submarine device and a drilling device; where the barge is loaded with a pneumatic-electric-hydraulic control device and a mud treatment device which are respectively connected to the submarine device through the umbilical cable; and the submarine device includes a submarine traveling device, a coiled tubing roller, a derrick, a centralized valve seat, a drill bit replacement device, a wellhead device and a casing rack. The centralized valve seat is connected to the umbilical cable for shunting mud, cement and electrical signals conveyed by the umbilical cable. The derrick is installed above the wellhead device, respectively matched with the drill bit replacement device and the casing rack for replacing drill bits and conveying and withdrawing casings.

Abstract: A syringe assembly for a hydraulic fracturing system includes a syringe having a material chamber, a base fluid chamber, and a piston. The material chamber is configured to be fluidly connected to a fluid conduit. The piston retracts to draw material into the material chamber. The piston extends to push the material into the fluid conduit. The syringe assembly includes a diverter fluidly connected to the base fluid chamber and moveable between first and second positions. The first position of the diverter fluidly connects the base fluid chamber to a base fluid reservoir of the hydraulic fracturing system and fluidly disconnects the base fluid chamber from an outlet of a frac pump of the hydraulic fracturing system. The second position of the diverter fluidly connects the base fluid chamber to the outlet of the frac pump and fluidly disconnects the base fluid chamber from the base fluid reservoir.

Abstract: A wellhead assembly that includes a wellhead disposed at a surface of a wellbore, a production tree fluidically coupled to the wellhead, and a telescopic adaptor assembly residing between and fluidically coupled to the wellhead and the production tree. The telescopic adaptor assembly extends or retracts to change an elevation of the production tree with respect to the wellhead and rotates to change a radial position of the production tree with respect to the wellhead. The telescopic adaptor assembly includes a flange attached to the wellhead and a first pipe rotationally coupled to the flange. The first pipe is rotational about a longitudinal axis of the first pipe. The telescopic adaptor assembly includes a second pipe attached to the production tree and is disposed concentrically inside the first pipe. The second pipe is movable along the longitudinal axis with respect to the first pipe.

Abstract: An apparatus according to which a subterranean formation in which a wellbore extends is hydraulically fractured, the apparatus comprising first and second manifolds, the first manifold including first and second flow lines adapted to be in fluid communication with first and second pumps, respectively, the first pump being adapted to pressurize fluid received from the first flow line, and the second pump being adapted to pressurize fluid received from the second flow line, and the second manifold including a third flow line adapted to convey pressurized fluid from the first and second pumps to the wellbore to hydraulically fracture the subterranean formation in which the wellbore extends. The apparatus is adapted to be connected to another apparatus used to hydraulically fracture the subterranean formation in which the wellbore extends by moving one, or both, of the first and second flow lines relative to the third flow line.

Abstract: A control system for controlling disconnection of riser system that extends between a vessel and a subsea location that comprises a wellbore, the riser system configured to receive a string in use, the control system being configured to disconnect the riser system according to a sequence of operations, the sequence of operations comprising disconnecting the riser system prior to or simultaneous with cutting the string and sealing the well bore.

Abstract: A dump valve positioned between two valves inline valves, wherein the dump valve is configured to remove fluid and/or pressure acting upon the inline valves.

Abstract: A versatile flying lead (VHL) termination head system comprises an underwater vehicle interface, an interface plate, a termination frame, and an adjuster, disposed proximate the termination frame's connection end, which is configured to provide a configurable declination angle which sets a hang-off angle of a device connected to the interface plate with respect to the underwater vehicle interface. A subsea termination head may be manufactured and assembled by obtaining a predetermined set of standardized structural building blocks that fit together to form a complete termination frame which is as described herein, using the predetermined set of standardized structural building blocks to construct a subsea termination head from the predetermined set of standardized structural building blocks substantially in parallel and connecting the underwater vehicle interface to the frame at a predetermined angle using the adjuster.