Oil-gas-water-solid three-level separation sled device

Abstract

The invention relates to an Oil-gas-water-solid three-level separation sled device, comprising a sled shell, a cyclone bin, a sand settling diversion pipe, a sand settling bin, an inclined settling chamber, a water-gathering chamber, an oil-mixing bin, a cyclone and an oil-gathering chamber. The cyclone bin, the sand settling diversion pipe and the inclined settling chamber form a first separation system for primary separation of the oil-gas-water-solid four phases; the oil-mixing bin, a control valve and the cyclone form a second separation system for cyclone separation of oil-water two phases; and the oil-gathering chamber and the water-gathering chamber form a third separation system for gravity settling separation of the oil and water. Under a synergistic effect of the three separation systems, efficient separation of the oil, gas, water and solid is realized. The oil-gas-water-solid three-level separation sled device is simple and reasonable in structure design, has large processing capacity, occupies small floor area, is suitable for change of moisture content in a produced liquid of an oilfield, can separate oil, gas, water and solid phases in a liquid coming from the oilfield, is convenient for discharging the separated oil, gas, water and solid phases in time, has high efficiency and is simple to maintain.

Description

technical field [0001] The invention relates to the technical field of oil and gas drilling fluid treatment and separation, in particular to a three-stage oil-gas-water-solid separation skid device. Background technique [0002] With the continuous exploitation of oil, the water content of most oil fields has increased significantly, reaching more than 90%, thus reducing the separation efficiency of the original oil-gas-water three-phase separator. In order to handle a large amount of liquid, the general oil-gas-water three-phase separator has a large volume, especially the horizontal oil-gas-water three-phase separator occupies a relatively large area, resulting in an increase in the cost of use. In addition, the universality of the current separator is relatively low, and most of them are designed according to the specific conditions of a certain oil field. However, with the change of the production fluid composition, such as a large increase in water content, the separati...

AI Technical Summary

Problems solved by technology

[0002] With the continuous exploitation of oil, the water content of most oil fields has increased significantly, reaching more than 90%, thus reducing the separation efficiency of the original oil-gas-water three-phase separator

In order to handle a large amount of liquid, the general oil-gas-water three-phase separator has a large volume, especially the horizontal oil-gas-water three-phase separator occupies a relatively large area, resulting in increased use costs

In addition, the universality of the current separator is relatively low, and most of them are designed according to the specific conditions of a certain oil field. However, with the change of the produced fluid composition, such as a large increase in water content, the separation efficiency will be greatly reduced

[0003] Crude oil often carries solid particles such as formation sand, pipe wall corrosion products, and mechanical impurities, but the existing oil-gas two-phase separator or oil-gas-water three-phase separator generally has the problem that the solid particles cannot be effectively separated

In actual production, the existence of solid particles can not only increase the emulsification of oil and water, but also cause serious erosion to pipes, elbows, valves and other pipe fittings in the gathering and transportation process. In the production and processing equipment, it will seriously affect the transmission efficiency of the pipeline and the processing effect of the equipment

Images