A separation tank for crude oil. Fluid enters an inlet section of a center column of the tank via an offset inlet pipe so the fluid enters swirling. Solids that settle in the inlet section are removed by a center column drain and a solids removal system. Free gas rises and exits from the top of the tank. Liquid flows out of the center column via a diffuser that spirals the fluid evenly toward the wall of the tank where oil coalesces and wicks upward. Liquid flows downward around two flow diverting baffles where more oil coalesces and wicks upward via an oil conduit into the oil layer. The water flows under the lower flow diverting baffle and exits the tank through the outlet section. A large circular oil collector weir uniformly removes oil from the oil layer. Interface draw offs located below the oil-water interface remove excess BS&W.

A well production particulate measurement system having a stationary frame removably mountable to tank, a hopper coupled to the frame and moveable relative to the frame; a well production inlet configured to receive well production and discharge the particulates and liquid into the hopper, and to strip at least a portion of a gas phase from the well production; and a weight transducer coupled to the system and configured to sense a weight of particulates in the hopper.

A gas-liquid-solid separator can include a separator body having a vertical outer wall and a gas collector having a vertical gas collector wall surrounded by the outer wall, with a gas inlet opening at a bottom of the gas collector. An annular volume between the gas collector wall and the outer wall can contain a plurality of inclined flow channels. The flow channels can have a channel inlet opening at the bottom and can slope upward following a helical path between the gas collector wall and the outer wall. A gas-liquid-solid mixture inlet opening can be in a floor of the separator body. The mixture opening can be positioned below the gas inlet opening and the mixture inlet opening can have a top-down profile that fits within a top-down profile of the gas inlet opening.

A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may be removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.

A flow back system for separating solids from a slurry recovered from a hydrocarbon well. The system includes a V-shaped tank with a first series of baffles configured to cause the settling of solids that are moved by a shaftless auger to a conduit fluidly connected to hydrocyclones mounted over a linear shaker. The overflow from the hydrocyclones is discharged through a second conduit back into the tank for processing by a second series of baffles resulting in a clean effluent. The clean effluent is recirculated in the well.

A sand separator for capturing solid debris from oil and gas wells includes a spherical, high-pressure vessel adapted to couple downstream of a wellhead. Fluid entering the separator follows a helical path around a vertical separator axis, slowing and separating into water, gas, oil and solid debris, the latter sinking to the bottom. A conical, downwardly opening flue descends from an exit port at the top and terminates in a horizontal, coaxial perimeter. A scalloped, annular collar inside the flue perimeter creates a low barrier to fluid flow into the flue. As fluid constituents circulate toward the flue, they recombine free of sand and rock debris, pass under the flue perimeter and across the collar, slowing further and becoming substantially laminar A fluid dome rises inside the flue with a gas layer above other fluid constituents, permitting the gas to exit the separator through the exit port.

Settling devices for separating particles from a bulk fluid with applications in numerous fields. The particle settling devices include a stack of cones with a small opening oriented upwardly or downwardly. The cones have an interior surface that is convex. These devices are useful for separating small (millimeter or micron sized) particles from a bulk fluid with applications in numerous fields, such as biological (microbial, mammalian, plant, insect or algal) cell cultures, solid catalyst particle separation from a liquid or gas and waste-water treatment.

A temporary hydrocarbon well production system receives flow from a hydrocarbon well through a production line connected to the well. The production line flows into a sand separator, which has a fluid outlet connected to a choke manifold and a solids outlet connected to a sand dump line. A transportable and vertical closed separator receives flow through two separate lines from the choke manifold and from the sand dump line, which respectively flow into independent diffusing structures in the closed separator. Gas, vapors, volatile organic compounds, etc. are captured within the closed vessel and are discharged through a vapor discharge line attached to a vapor recovery unit for either further processing or incineration through a flare. A liquid dump line discharges liquids from the closed separator to at least one closed tank.

Method for control of an inner tube of an inclined tubular separator, wherein the inner tube is provided with an outlet adapted the viscosity of oil introduced into the inner tube.

Systems and methods for removing iron from waste water employ one or more oxidizers, one or more treatment tanks having one or more self-generating and self-sustaining active sludge layers, and one or more spray-atomizing devices. A mixture of flowback fracturing water, or produced water, and the one or more oxidizers is spray-atomized by the spray-atomizing device inside the one or more treatment tanks. The atomized mixture settles in the one or more treatment tanks resulting in one or more self-generating and self-sustaining active sludge layers and one or more treated solutions. Additional mixtures of the flowback fracturing water, or produced water, and the one or more oxidizers may be continually spray-atomized into the one or more treatment tanks and filtered by the one or more sludge layer(s) so as to remove precipitated iron species from accumulated distillates and produce additional treated solutions for collection in one or more finish tanks.