Three-phase metering separator for oil, gas and water

Abstract

The invention discloses a separator for oil, water and gas three-phase measurement. The separator is made up of a shell, rotational flow degasser, energy annihilator, water chamber, oil chamber, sand discharging system and other components. The oil steam enters the separator with a fixed angle, the liquid and gas are separated fully, the energy annihilator is made up of energy absorbing board and baffle board, it not only can absorb energy, but also can commutate, there has a convex body with gas on the oil chamber, the around of the main shell uses water retardation to prevent the jam of oil in the oil chamber, the connecting pipes arrangement makes the water loop move freely, the sand discharging system is made up of oblique board, sand washing pipe and circular pump. It separates sand on the shell by using circular pump and sand washing pipe to impact the three-phase measure separator, the invention guarantees the stability of the fluid movement, thus ensures the smoothness of the water outlet.

Description

technical field [0001] The invention relates to a separator for three-phase metering of oil, water and gas. Background technique [0002] The invention relates to a method of utilizing fluid centrifugal separation, fluid momentum, fluid heat exchange and fluid flow to separate gas from oil and water entering a three-phase metering separator to a greater extent. The fluid flow is stable, the oil is kept warm, and the sand contained in the oil and water can smoothly enter the water outlet connection pipe from the three-phase metering separator and be discharged, so as to realize the oil-gas-water three-phase metering separator equipment, which is mainly used in oilfield surface engineering, environmental engineering, Oil refineries and chemical plants. [0003] In the existing technology, the swirl pre-degasser used in the oil-water-gas three-phase metering separator mainly includes a single swirl tube and multiple swirl tubes connected in parallel. The energy dissipation pl...

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Problems solved by technology

[0003] In the existing technology, the swirl pre-degasser used in the oil-water-gas three-phase metering separator mainly includes a single swirl tube and multiple swirl tubes connected in parallel. The energy dissipation plate and the oil chamber are mainly used to make the oil flow into the oil chamber through the flat weir baffle plate. The sand discharge system is mainly equipped with a sloping plate or a water circulation system at the bottom of the settling chamber of the three-phase separator. Typical examples are C-E Natco in the United States and China. The three-phase separator developed by the Survey and Design Research Institute of Henan Petroleum Exploration Bureau of Sinopec is characterized in that the cyclone pre-degasser pre-degasses the high-speed oil-gas-water fluid, but the parallel connection of multiple cyclone tubes occupies a large space, and a single The swirl pipe and the inlet pipe connected to it are generally in a vertical direction, and the gas processing capacity is relatively small; the energy dissipator simply dissipates the kinetic energy of the high-speed fluid, but does not make full use of the space in the turbulent flow chamber to simultaneously stratify; The oil in the oil chamber is in direct contact with the large area of ​​the shell. Poor heat preservation will easily reduce the oil temperature, which may lead to blockage of the oil circuit, or some oil chambers have water insulation on both sides, and water pipes pass through the middle, so it is difficult to discharge sand in the water; The use of sand system in three-phase metering separator has not been reported, so fine sand deposits often occur, which affects the performance of three-phase separation, and sometimes the waterway is even blocked, resulting in inaccurate metering

The above situation makes the oil-water-gas three-phase metering separator may cause oil circuit blockage or water circuit blockage in practical application, resulting in inaccurate metering and affecting the operating performance of the equipment to a certain extent

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