摘要:
A separator for separating a relatively small volume e.g. up to 20% of a less dense liquid from a larger volume of a more dense liquid, for example for separating small volumes of crude oil from produced water from an oil-well, in the form of an elongated tube of reducing cross-sectional area. The separator has at least one tangentially-disposed inlet (5,105) for the mixture of liquids, adjacent the wide end of the separator, an outlet (10, 121) for the more dense compartment at the narrow end, and an axially disposed outlet (11,122) for the less dense component. A further outlet (6, 113) for the more dense component may be provided intermediate the two ends. The two outlets (10, 121 or 6, 113) for the more dense component are provided with pressure control means (85, 93) for controlling the pressure of the more dense component.
摘要:
Sand is discharged from a vessel at an elevated pressure and is delivered at a lower pressure. The sand is subjected to the following steps before delivery: I) dilution with a dilution fluid, ii) passage through at least one pressure reducing cyclone, the dilution being such that flashing is reduced, and iii) delivery as a slurry at the delivery pressure. This results in less wear of the components.
摘要:
A method of, and apparatus for, separating phases in a polyphase system is described and particularly in separating oil from produced water by the contact of gas bubbles and oil droplets by a dispersed gas flotation technique. A polyphase system is divided into at least two portions. The pressure of one portion is reduced to form bubbles of a gas, and the two portions are then recombined whereby the-bubbles in the mixture enhances flotation, and hence separation of the dispensed phase, e.g. oil, from the continuous phase, e.g. water. The invention has particular application in the oil industry and in other fields where efficient separation is required.
摘要:
A method of, and apparatus for, separating phases in a polyphase system is described and particularly in separating oil from produced water by the contact of gas bubbles and oil droplets by a dispersed gas flotation technique. A polyphase system is divided into at least two portions. The pressure of one portion is reduced to form bubbles of a gas, and the two portions are then recombined whereby the-bubbles in the mixture enhances flotation, and hence separation of the dispensed phase, e.g. oil, from the continuous phase, e.g. water. The invention has particular application in the oil industry and in other fields where efficient separation is required.
摘要:
Eductor apparatus (100, 99) is provided for introducing gas into a liquid in a gas flotation cell, the apparatus comprising a clean liquid inlet port (101), the inlet port having an outlet end (104) through which the clean liquid is ejected in a first direction, a gas inlet chamber (187) adjacent to the outlet end of the inlet port for introducing gas to the liquid from a gas inlet port (102), the gas inlet chamber substantially surrounding the flow of liquid when the apparatus is in use, and a gas/liquid mixing and diffusing section (103) wherein gas is entrained within the liquid prior to being ejected from the eductor apparatus into the contaminated liquid, the gas/liquid mixing and diffusing section having a direction of fluid flow substantially transverse to the first direction such that the fluid exits from the gas/liquid mixing and diffusing section substantially radially outwardly relative to said first direction.
摘要:
Separation apparatus for separating a mixture of materials which is a fluid or behaves as a fluid comprising a cyclone (1) having an inlet (12) capable of being switched between open and closed conditions by movement of at least part of the cyclone (1). A plurality of cyclones (1) may be provided, enclosed in a pressure vessel (10).
摘要:
A separator for separating a relatively small volume e.g. up to 20% of a less dense liquid from a larger volume of a more dense liquid, for example for separating small volumes of crude oil from produced water from an oil-well, in the form of an elongated tube of reducing cross-sectional area. The separator has at least one tangentially-disposed inlet (5,105) for the mixture of liquids, adjacent the wide end of the separator, an outlet (10, 121) for the more dense compartment at the narrow end, and an axially disposed outlet (11,122) for the less dense component. A further outlet (6, 113) for the more dense component may be provided intermediate the two ends. The two outlets (10, 121 or 6, 113) for the more dense component are provided with pressure control means (85, 93) for controlling the pressure of the more dense component.
摘要:
A separator for separating a relatively small volume e.g. up to 20% of a less dense liquid from a larger volume of a more dense liquid, for example for separating small volumes of crude oil from produced water from an oil-well, in the form of an elongated tube of reducing cross-sectional area. The separator has at least one tangentially-disposed inlet (5,105) for the mixture of liquids, adjacent the wide end of the separator, an outlet (10, 121) for the more dense compartment at the narrow end, and an axially disposed outlet (11,122) for the less dense component. A further outlet (6, 113) for the more dense component may be provided intermediate the two ends. The two outlets (10, 121 or 6, 113) for the more dense component are provided with pressure control means (85, 93) for controlling the pressure of the more dense component.