A system for separating solids from a fluid mixture includes a vessel including a first chamber to receive a solid-laden fluid mixture, and a second chamber to receive liquids separated from the solid-laden fluid mixture. In certain aspects, at least one eductor is disposed in the first chamber to flow the solid-laden fluid mixture out of the first chamber. In certain aspects, an auger is disposed in the first chamber to move at least solids of the solid-laden fluid mixture out of the first chamber.

The present disclosure relates to a separating device for removing solid particles from fluids, and to the use of said separating device for removing solid particles from fluids.

Disclosed is a system and method to separate solid particle components from a fluid. It can be used in close association with a hydrocarbon producing well and uses a novel combination of mechanical filtration, solids decantation, and real and apparent forces. Disclosed is a spherical vessel with a tangential inlet to introduce the fluid and a fluid exhaust and filter arranged on the center line of the interior of the vessel. A combination of pressurized fluid and solid particles enter at the tangential inlet and move primarily in a circular path around the interior of the vessel. The circular path results in the larger mass particles settling at the vessels lower region. Less massive particles may be entrained in the exiting fluid flow toward a filter element where they are removed from the exiting fluid. The vessel has an opening to remove the trapped separated particles.

A system for plug milling/flowback/descaling operations utilizes a data management component to receive and analyze data. A fluid management physical interconnection component has a debris separation device, a pressure control device and at least one mechanism connected for gas management and flow measurements of solids and liquids. The analysis by the data management component is used to provide control signals for use in or for the pressure control device. A vacuum/flush solid management system utilizes a combination of flush and vacuum pumps to convey solids in a slurry to a low pressure tank for disposal. The system directs frac sands through the debris separation device, through the pressure control device, and through the at least one mechanism for gas management and flow measurements to the low pressure tank.

A process of dewatering oil sands/coal tailings includes generating nanobubble water, mixing a chemical dispersant into the nanobubble water to form a nanobubble-dispersant mixture, adding tailings to the nanobubble-dispersant mixture to form a nanobubble-dispersant-tailings mixture, and agitating the nanobubble-dispersant-tailings mixture to form an agitated nanobubble-dispersant-tailings mixture having a solid portion and a liquid portion. The solid portion is thereafter separated from the liquid portion. The agitation may be a centrifugal motion or shaking motion to agitate the nanobubble-dispersant-tailings mixture The chemical dispersant may be sodium hydroxide dispersant for asphaltenes and the volume of the tailings added may be substantially equal to the volume of the nanobubble water generated. An oil layer may further be skimmed off the liquid portion a polymer clarifier may also be added to the liquid portion. The process may be applied to achieve accelerated tailings processing for rapid and economic environmental remediation.

A sand separating apparatus for use with a production tubing string includes (i) a housing assembly forming an outer tubular and (ii) an inner tubular within the housing assembly to define an annular passage between the inner tubular and the housing assembly. A helical member occupies part of the annular passage below production openings in the housing assembly whereby a flow of production fluids entering from the wellbore is directed downwardly along a helical path within the annular passage as dictated by the helical member and subsequently upwardly through the inner tubular. The helical member extends radially outwardly from the inner tubular beyond a boundary surface at an outer perimeter of the annular passage to prevent formation of a gap at the tip of the helical member as it wears. A fluid passage in alignment with the helical member extends radially from inside the inner tubular to the annular passage.

A sand handling system having, for example, one to three sand separators are configured to be operatively connected to a well and an inlet of a common dumping vessel. Advantageously, the dumping vessel has a sensor to measure an amount of sand in the dumping vessel and provide a signal to a programmable controller which is arranged to dump the dumping vessel when a specified amount of sand is in the dumping vessel. The system automates the sand handling process and also measures and records data associated with a number of flowback parameters. The data can then be used in well design to improve oil and/or gas production, lessen sand production, reduce well damage and/or equipment corrosion due to, for example, sand.

Systems and methods for managing debris material in a fluid are described. In examples, the system may include a flow line that directs a fluid into an inlet of a barrel, through the barrel to filter at least some material from the fluid, and out of an outlet of the barrel. The system may also include a backflush line coupled to the flow line between an inlet valve and an inlet of the barrel and between an outlet valve and an outlet of the barrel. In examples, the system includes a pump positioned on the backflush line, where in a backflush mode, the inlet and outlet valves close to isolate the barrel, and the pump circulates the fluid through the backflush line and through the barrel in a reverse direction to move fluid and material from the barrel to a screen overflow assembly.

A system and method for a gas oil separation plant (GOSP) that receives crude oil from a wellhead. The GOSP has a sand filter associated with a water-oil separator vessel that removes crude oil from oily water in the GOSP. The sand filter is a filter having sand as filter media.

Compositions and methods for use in treating hydrocarbon liquids are provided. Specifically, the compositions and methods of the present disclosure relate to additives including betaine and one or more organic acids. In some embodiments, an additive comprising betaine and an organic acid may be added to a hydrocarbon liquid. In certain embodiments, the additive may be added to a hydrocarbon liquid prior to a processing operation.