Improvements for hydronic air separators enable removal of micro bubbles of the air and micro particles of dirt. Adding coalescing media (CM) to existing and new tangential and in-line AS helps remove damaging micro air bubbles and small dirt particles from the water by a physics principle called surface adhesion. When the small air bubbles and dirt in the water come in contact with the CM, they stick to the surface of the media and then coalesce into larger bubbles and clumps of dirt. The larger air bubbles can float up off the CM and out of the water, to be released from the AS though an automatic air release valve. The larger dirt clumps fall off the CM and land at the bottom of the AS tank where they can be expelled through a hole in the AS tank connected to a drain valve. Water can be filtrated leaving the top of a separator tank. In such arrangements, material in the water with a specific gravity lower than 1.0 will float to the top of the tank and exit through a top opening in the water stream that passes through a bag filter and is removed. Clean water exiting the filter then can flow to the inlet side of a circulating pump.

The disclosure provides a collection receptacle. In one embodiment, the collection receptacle includes an enclosure including a first portion and second portion configured to collect solid and liquid matter. The collection receptacle, in this embodiment, further includes a conveyor extending into the first portion of the enclosure and configured to remove the solid matter from the first portion, wherein the conveyor includes a first substantially horizontal portion and a second elevated portion, and further wherein a length of the first substantially horizontal portion is configured in such a way as to promote separation of the solid matter from the liquid matter as the solid matter travels up the conveyor and out of the enclosure.

An hydraulic separator for balancing varying flows in a primary liquid circuit and a secondary liquid circuit includes a housing which defines an inner space, an upper entry and an upper exit located in an upper region of the housing, and a lower entry and a lower exit located in a lower region of the housing. The upper entry and lower exit are constructed to be connected to a primary liquid circuit and the upper exit and lower entry being constructed to be connected to a secondary liquid circuit A fluid communication channel is provided between the upper region and the lower region, such that when in use the flow in the primary or secondary circuit suddenly varies, a leak flow is allowed to occur between the upper entry and lower exit or between the lower entry and upper exit, for balancing the flows.

Method and system for separation of produced water into a water fraction, a solids fraction and a hydrocarbon fraction, comprising feeding produced water into a collapsible flexible bag maintained subsea by a protection structure; operating the flexible bag at an overpressure and thereby providing a predefined geometry of the flexible bag; maintaining the produced water in the flexible bag to allow for gravitational separation of the solids fraction with a higher density than water in a lower section and optionally separation of the hydrocarbon fraction with a lower density than water in an upper section; removing the water fraction from a section above the lower section; optionally removing hydrocarbons from the upper section and replacing the flexible bag to remove the solids fraction.

A device for separating the liquid phase from the solid phase of a slurry, wherein such separation is obtained by a filtration process, preferably under pressure, in combination with a process of clarification and withdrawal of the clarified liquid within the filter at an adjustable height.

A method and system for treatment of flow-back and produced water from a hydrocarbon well in which fracturing operations are carried out using a phase separation and creating of positive charge in the water.

The present invention relates to a removal device for removing gas bubbles and/or dirt particles from a liquid in a liquid conduit system or for removing a second liquid from a first liquid in the conduit system. The removal device includes a main channel for a main flow, the main channel having an entry and an exit which are configured to be connected to the conduit system, a housing which defines an inner space, at least one supply channel extending from the main channel to the inner space, at least one return channel extending from the inner space back to the main channel, directly or indirectly via a return chamber, at least one quiet zone in the inner space in which in use the liquid has a substantially smaller velocity than in the main channel. The quiet zone is configured to allow dirt particles or a relatively heavy liquid to settle at a lower end of the housing and/or gas bubbles or a relatively light liquid to rise to an upper end of the housing. The removal device further comprises means to remove dirt particles or relatively heavy liquid, and/or gas or relatively light liquid out of the housing.

A de-sanding tank with a conical bottom. The de-sanding tank includes an enclosed tank having a vertical wall that extends down to a flat bottom. A conical bottom is disposed within an interior of the tank. The conical bottom is secured to the vertical wall forming an enclosing space bounded by a wall of the conical bottom and the vertical wall and flat bottom of the tank. A solids outlet is disposed at a lower tip of the conical bottom configured for removal of solids. The conical bottom is supported by a foam structure located within the enclosing space.

An apparatus and method for removing particulates from a multiple-phase fluid stream is disclosed. The apparatus comprises a treatment chamber having a fluid inlet for receiving the multiple-phase fluid stream. The apparatus also comprises a recovery chamber having a gas channel and a liquid channel in fluid communication with the treatment chamber at a gas and a liquid port, respectively. The gas and liquid channels converge at an intake port of a fluid outlet for discharging particulate-removed gas and liquid.

An apparatus and a process enable separating components of a multiphase hydrocarbon stream. The apparatus may include an outer vessel having a top end with a top outlet and a bottom end with a bottom outlet, with a longitudinal axis extending between the top end and the bottom end. An outer vessel body disposed between the top end and the bottom end has an outer vessel internal volume in fluid communication with the top outlet and the bottom outlet. The outer vessel body may include a first section with a tangential inlet arranged to introduce the multiphase hydrocarbon stream tangentially into the outer vessel internal volume to create a vortex flow, and a second section arranged closer to the bottom end than the first section. The outer vessel internal volume has a smaller cross-sectional circumference in the second section than in the first section. An inner vessel disposed within the outer vessel body includes an inner vessel body having an inner vessel internal volume, and an inner bottom inlet oriented toward the bottom end of the outer vessel and in fluid communication with the inner vessel internal volume and with the outer vessel internal volume. A traversing conduit in fluid communication with the inner vessel internal volume may traverse the outer vessel body.