Abstract: An illustrative modular manifold disclosed herein includes, among other things, a low-pressure manifold comprising a frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from the low-pressure manifold via the frac fluid outlet valve to a suction side of a frac pump, and a high-pressure manifold comprising at least one frac fluid inlet valve, wherein the high-pressure manifold is adapted to receive, via the frac fluid inlet valve, a fracturing fluid discharged from the frac pump. In this example, the modular manifold also includes a support structure for mechanically supporting the low- and high-pressure manifolds and a plurality of height-adjustable support legs operatively coupled to the support structure.

Abstract: In one illustrative embodiment, the manifold comprises a block with at least one drilled header hole formed within the block, a plurality of drilled flow inlet holes formed within the block, wherein the number of drilled flow inlet holes corresponds to the number of the plurality of external flow lines that supply fluid (e.g., oil/gas) to the manifold and a plurality of isolation valves coupled to the block wherein the valve element for each of the isolation valves is positioned within the block.

Abstract: A flapper valve having a valve body which includes first and second ends, a flow bore which extends between the first and second ends, and an enlarged diameter cavity which is formed coaxially within the flow bore; a valve seat which comprises a through bore that is aligned with the flow bore; a retainer which is positioned radially outwardly of the cavity; and a flapper which is pivotally connected to the retainer. The flapper includes a sealing side which is configured to engage the valve seat when the flapper is in a closed position, a core which is made of a rigid material, a circular stop ring which is connected to or formed integrally with the core on the sealing side of the flapper and is configured to engage the valve seat when the flapper is in the closed position, and a resilient coating.

Abstract: A flow control module includes an inlet hub coupled to a first flow passage having a first flow bore, a flow meter, and a choke disposed in a second flow passage having a second flow bore, where the second flow passage is coupled to a distal end of the first flow passage. The flow meter is associated with the first flow bore and positioned for top-down fluid flow. The flow control module also includes an outlet hub coupled to a distal end of the second flow passage, where the outlet hub faces in a different direction from the inlet hub.

Abstract: A system may include a connector coupled to a wellhead assembly. The system may also include a hydraulic power unit coupled to the connector and a valve of the wellhead assembly. The system may further include a controller in communication with the connector and the hydraulic power unit. The controller may be operable to receive one or more conditions associated with the connector and a valve of the wellhead assembly. The controller may also be operable to operate at least one of the connector and the valve through the hydraulic power unit based on the one or more condition.

Abstract: Disclosed is a process for preparing a compound of Formula 1, from a compound of Formula 2 wherein X, R1, R2, R3, R4, R5, n, R6, R7, G and W are as defined in the disclosure. Also disclosed are compounds of Formulae 2 and 4 wherein X, R1, R2, R3, R4, R5, n, R6, R7, G and W are as defined in the disclosure. Also disclosed is a process for preparing the compounds of Formulae 2 and 4.

Abstract: A mechanical seal provides bi-directional sealing and comprising a body in hybrid material, being structured in a component of elastomeric material and a component of segmented or non-segmented composite material distributed in a lagged way along said body. The seal is resistant to extrusion failure at high differential pressures, which facilitates its installation in several equipment elements, such as underwater or ground.

Abstract: A valve stop retainer device (220) that is adapted to interface with a cross-bore fluid communication chamber (262) of a reciprocating pump (250) includes a spring retainer plate (221) and a plurality of retainer lobes (223) extending substantially away from a first side of the spring retainer plate (221). Each of the plurality of retainer lobes (223) includes an upper portion (223u) having an outer surface (223s). A shape of each of the outer surfaces (223s) and a shape of an inside surface (261) of the cross-bore fluid communication chamber (262) interfacing with the valve stop retainer device (220) substantially conform to a shape of at least a portion of a surface of revolution. The valve stop retainer device (220) is adapted to be retained inside of the cross-bore fluid communication chamber (262) by the shape of the inside surface (261).

Abstract: Disclosed are compounds of Formula 1, including all stereoisomers, N oxides, and salts thereof, wherein R1, R4, R5, R6, J, Q1, Q2, A, Y1, and Y2 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention.

Abstract: The present invention provides a method for post-emergence selective weed control in turf sites by applying an herbicidal composition comprising sulfentrazone and quinclorac to a locus where weeds are present.

Abstract: A check valve includes a valve body having a flow bore which extends between the inlet and outlet ends of the body, a cavity which intersects the flow bore, and an opening which is connected to the cavity. A body cap is removably secured in the opening, and a seat cartridge is configured to fit through the opening and be slidably received in the cavity. The seat cartridge has an open first end which is aligned with the opening, a second end which is located opposite the first end, a chamber which extends between the first and second ends and defines an inner wall of the seat cartridge, a first bore which extends between the chamber and an inlet bore portion, a second bore which extends between the chamber and an outlet bore portion, and a valve seat which is formed on a portion of the inner wall that surrounds the first bore.

Abstract: A remotely operated subsea well completion system, which comprises local storage (28, 36) of hydraulic energy and feedthroughs in a BOP (11) or a marine riser (9), has the object of installing or pulling a production tubing and its tubing hanger without using an umbilical within a marine riser. The system consists of an internal control module (25), which comprises hydraulic accumulators (28), a liquid divider (31), control valves (30, 34), an electric control module (27), as well as one or more transmitters/receivers (19) for communication to an external control unit (21, 26). The communication may be through acoustic feedthroughs in existing choke, kill or booster ports.

Abstract: The present invention provides a heavy solids separator for separating solids from fluids, comprising a swirl-generating chamber (1) and a solids accumulation chamber (2), wherein the swirl-generating chamber (1) comprises an inlet (3), a solids outlet (4) and a fluid extraction pipe (5) arranged at the centerline (C) of the chamber (1), the inlet arranged at an upper part of the swirl-generating chamber, the solids outlet is fluidly connected to the solids accumulation chamber and arranged in the bottom of the swirl-generating chamber, and the fluid extraction pipe (5) has a fluid inlet (6,19) comprising an opening (6) arranged at the centerline of the fluid extraction pipe, the opening facing the solids outlet (4), and a fluid outlet (7) for extracting fluid out of the swirl-generating chamber; and the solids accumulation chamber (2) comprises a solids inlet (8) fluidly connected to the solids outlet (4) of the swirl-generating chamber, and a solids outlet (9) arranged in a lower part of the solids accumula

Abstract: The present invention provides a separator comprising a vessel (1) and an electrode assembly (2), wherein the vessel (1) has an inlet section (3), a main settling section (14) and an outlet section (4) and comprises a fluid inlet (5) arranged in the inlet section (3), and an oil outlet (7) and a water outlet (8) arranged in the outlet section (4); the electrode assembly (2) is arranged in the inlet section and comprises at least one fluid pipe (9) and at least one rod-shaped electrode (10), the fluid pipe surrounds at least parts of the rod-shaped electrode and comprises a pipe inlet (11) arranged in the inlet section and a pipe outlet (12) arranged in fluid communication with the main settling section, wherein a liquid obstruction element (13) is arranged downstream the fluid inlet, such that at least a major part of a liquid component of a fluid stream entering the inlet section via the fluid inlet, during use, may be forced to pass through the at least one fluid pipe via the pipe inlet before entering the

Abstract: This application is directed to a compound of Formula II Also disclosed is a process for preparing a compound of Formula II comprising using the compounds of Formulae IV and V Also disclosed is a method for preparing a compound of Formula I comprising contacting a compound of Formula II with a compound of a compound of Formula VI wherein A1, A2 A3, R1, R2, R3a, R3b, R4, B1, B2 and B3, are as defined in the disclosure.

Abstract: An extendable wellbore tool may include a housing, a telescopic cylinder, and one or more hydraulic actuators. The telescopic cylinder may be disposed within the housing and may include two or more cylinders configured to extend and retract relative to each other. The one or more hydraulic actuators may be connected to the telescopic cylinder via a link arm, and may be configured to extend and retract the telescopic cylinder relative to the housing.

Abstract: An illustrative modular manifold disclosed herein includes, among other things, a low-pressure manifold comprising a frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from the low-pressure manifold via the frac fluid outlet valve to a suction side of a frac pump, and a high-pressure manifold comprising at least one frac fluid inlet valve, wherein the high-pressure manifold is adapted to receive, via the frac fluid inlet valve, a fracturing fluid discharged from the frac pump. In this example, the modular manifold also includes a support structure for mechanically supporting the low- and high-pressure manifolds and a plurality of height-adjustable support legs operatively coupled to the support structure.

Abstract: The present invention relates to a subsea control valve (10) for controlling the supply of hydraulic fluid to a subsea fluid-actuated device (4). The valve comprises a housing (11) with an input fluid line bore (16) connectable to a input fluid system (2), a return fluid line bore (17) connectable to a return fluid system (3) and an actuator fluid line bore (18) connectable to the fluid-actuated device (4). A ball valve member (20) with a through bore (21) is pivotably connected within the housing (11) between the input fluid line bore (16), the return fluid line bore (17) and the actuator fluid line bore (18), the ball valve member (20) having a first and a second position. The actuator fluid line bore (18) and the return fluid line bore (17) are connected to each other via the through bore (21) when the ball valve member (20) is in its first position, thereby allowing fluid to be returned from the fluid-actuated device (4) to the return fluid system (3).

Abstract: The invention relates to a tool and associated method for making closed operation in subsea wells possible, without the use of cable or coiled tubing up to the rig or ship. The object of this solution is to move such operations to lighter and more cost efficient vessels or ships which are not necessarily required to handle hydrocarbons up to the deck of the vessel. The basis of maintaining two independent well barrier envelopes is met even if the tool and the method for operation does not require cutting functions for isolating the well from the environment. The tool comprises a hoist arrangement, a seal element and connection points. The localization and arrangement of these are essential for the invention. The invention also adapts for use of traditional workover systems as alternative, independent operation, if the new technique should not complete the operation as planned.