A method of treating oil and gas produced water may include: receiving produced water from one or more wells; separating an aqueous portion of the produced water from oil and solids included in the produced water in order to provide recovered water; performing anaerobic bio-digestion of organic matter included in the produced water using a biomass mixture of anaerobic bacteria obtained from a plurality of wells; aerating the recovered water in order to promote metal precipitation; and performing aerobic bio-digestion of organic matter present in the recovered water. Some embodiments may also include one or more of anoxic equalization, filtration, pasteurization, reverse osmosis, and biocide treatment of the recovered water. The recovered water may be used for oil and gas well fracking and/or land and stream application. Other methods of treating oil and gas produced water are also described.

A filter for removing particles held in suspension by a fluid. The filter includes (a) a manifold having an inlet and an outlet; and (b) a main filter body connected to the manifold. The main filter body includes a flow disrupter, the flow disrupter comprising a tiered plate assembly arranged in the filter body and each plate in the tiered plate assembly comprises an arrangement of apertures. The inlet of the manifold, the tiered plate assembly, the outlet of the manifold and a bottom of the main filter body define a flow path for fluid to be treated.

A system and method for processing interface emulsion, water, and solids contained within a separator vessel that comprises the steps of continually extracting those components from the vessel and then passing them through a gas flotation cell. The cell, which is preferably a vertical induced gas flotation cell, separates the oil and water contained in the interface emulsion and discharges recovered oil from an upper portion of the cell and treated water from a bottom portion of the cell. The recovered oil and treated water may be further processed and recycled to the vessel or sent elsewhere. The treated water may also be recycled to the cell or sent to a process sewer. Fuel gas residing in an upper portion of the cell may be cooled and passed through a splitter. All the steps of occur in a closed system with no air emissions.

An apparatus for filtering a suspension has a housing with an inlet receiving the suspension to be filtered, an outlet for the clear filtered filtrate, and a drain for removal of filter cake. The housing has a cylindrical part centered on an axis. An output ring pipe is connected to the outlet and externally surrounds the cylindrical part. A plurality of segmental filter holders are fittable into the cylindrical part from above and together form a circular insert with each holder forming an inlet chamber having an outflow fitting connectable to the annular output pipe. Respective sets of filter elements each formed by a respective strip-shaped support and a mesh filter sock surrounding the support are carried on the holder and open into the respective inlet chambers. A removable cover upwardly closes the cylindrical part above the inserts.

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.

The present disclosure provides a quantitative tank bottom sludge valve. The extension and retraction of a cylinder drives a lower valve body, a valve rod, an upper valve body and respective accessories to move up and down, and sludge at the bottom of a water tank that is deposited to the upper part of an upper valve plate and the lower part of an upper valve body gasket is discharged quantitatively, thereby saving water and avoiding blockage; moreover, the quantitative tank bottom sludge valve has simple components in structure, and it is low in processing and assembly precision requirements, low cost, convenient to install and maintain, and suitable for mass production and use.

Removable trap stations for hydrocarbon flowlines can be implemented as an apparatus. The apparatus includes a multi-phase fluid receiver body and a tank defining an interior volume. The fluid receiver body is configured to couple to a flowline carrying a multi-phase fluid including solids and liquids. The fluid receiver body includes an inlet portion configured to receive a portion of the multi-phase fluid including a portion of the solids flowing through the flowline into the receiver body. The fluid receiver body includes an outlet portion fluidically coupled to the inlet portion. The portion of the multi-phase fluid is configured to flow from the inlet portion to the outlet portion. The tank is fluidically and detachably coupled to the outlet and is configured to receive and retain the portion of the multi-phase fluid received through the inlet portion.

A separation tank for the separation of a mixture of oil, gas, water, and solids obtained from an oil field includes distinct regions vertically located within the tank interior where constituent components of the mixture can collect. The inflowing mixture may be directed to a vertical column extending inside the separation tank and can be introduced to the tank interior through a swirl vane diffuser configured to impart a helical direction to the inflowing mixture that assist separation of the mixture component. To further facilitate separation of oil from the mixture, the separation tank may be operatively associated with an aeration system configured to generate and introduce an aerated liquid to the tank interior. Gas dissolved in the aerated liquid may form microbubbles that can naturally adhere to the oil and solids separate it from the mixture which can improve the quality of the water.

A method, system, and apparatus directed to an innovative approach for the treatment of stormwater utilizing hydrodynamic separator assembly designed to maximize flow movement for more efficient sediment removal and maximize water flow control.

A fluid treatment system combines cyclonic separators and gravitational separators for use in onshore and offshore oil and gas operations and elsewhere. The characteristics of apertures that interface between a gravitational separation chamber and a cyclonic separator are configurable in accordance with operational requirements. By selecting aperture characteristics, improved control and separation efficiencies can be achieved.