Abstract:
A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of conducting the emulsion into a treatment vessel (10), providing an AC voltage source (46), employing from the source an AC voltage of at least one selected frequency F1 (42) to establish at least one electric field (28, 30) within the vessel (10) through which the emulsion passes, and cyclically modulating the AC voltage (42) with a method of modulation (44) selected from: (a) amplitude modulation; (b) frequency modulation; and (c) combined amplitude and frequency modulation.
Abstract:
A method of separating gaseous components, heavier liquid components and lighter liquid components of a stream including the steps of conducting the stream between spaced apart electrodes in a treatment vessel, supplying from a voltage source an AC voltage of at least one base frequency F?1#191 to at least one of the electrodes to establish an electric field within the vessel through which the stream passes, modulating the frequency F?1#191 of the AC voltage at a modulation frequency F?2#191, and withdrawing separated gaseous components from an upper portion of the vessel, heavier stream components from a lower portion of the vessel, and lighter liquid components from an intermediate portion of said vessel.
Abstract:
A centrifugal separator for separating immiscible components of a wet gas stream is formed by an upright cylindrical vortex tube having an internal wall surface, a top with a gas outlet opening therein, a bottom providing a liquid outlet opening and a wet gas stream inlet tangential to the internal wall surface, the inlet being spaced below the top. A helical baffle is secured to the vortex tube internal wall surface and extends from below the top but above the inlet to a lower end spaced above the vortex tube bottom. A plurality of spaced apart vertical outlet fins are affixed to and extending radially from the internal wall surface adjacent the vortex tube bottom, each outlet fin having a top end spaced below the helical baffle lower end.
Abstract:
This invention teaches a process that includes extraction of gas in which the presence of foam results in the carry over in the outlet gas stream of excessive liquids and/or solids, including the steps of injecting the foam laden gas stream tangentially into a cyclonic separator having an axial gas outlet and a liquid outlet, under conditions in which the inlet stream is subjected to at least about 150 G's, the outlet gas being substantially liquids/solids free and the outlet liquid stream being conveyed for disposal or further processing.
Abstract:
A method for treating an interface rag includes the steps of removing a volume of rag at a controlled rate from an upstream rag source and passing the rag through a high pressure pump and a heater. The heater heats the rag to a temperature of at least 350°F to thermally decomposing any chemicals that had been added to the interface rag to promote separation. Diluent is then mixed with the heated rag to cool the rag to a temperature less than 300°F and produce a 30 API rag. The cooled diluted rag is then treated in an electrostatic treater or sent directly to a hydrocyclone cluster. The electrostatic treater is preferably a vertical electrostatic treater with a conical-shaped lower portion and a means for agitating the solid-laden water within the treater to prevent the solids from settling on the bottom of the treater.
Abstract:
An apparatus for separating water from a water-in-oil mixture having an elongated inlet vessel with a lower outlet end and an upper inlet end, the length thereof being a multiple of the largest vessel cross-sectional dimension. A separation vessel having an oil outlet and a divergent water outlet has an inlet passageway in communication with the inlet vessel lower outlet end. At least one electrode is positioned within the inlet vessel by which a mixture flowing therethrough is subjected to an electric field.