Compact vertical separating device based on novel separated outer barrel improvement method

Abstract

The invention discloses a compact vertical separating device based on a novel separated outer barrel improvement method. The device comprises a separating outer barrel and a cyclone coalescer. A filter screen and a gas discharge pipe are arranged at the upper end of the separating outer barrel and a crude oil discharge pipe and a drain outlet are formed in the lower end of the separating outer barrel. A liquid inlet pipe is arranged on one side and a drain pipe is arranged on the other side. The cyclone coalescer comprises a tangential inlet pipe, a lower guide separating chamber, a central outer tube, a central tube, an upper guide separating cavity and an oil collecting funnel. The tangential inlet pipe is connected to the liquid inlet pipe, and the oil collecting funnel is connected tothe crude oil discharge pipe through the central tube. During work, multiphase incoming liquids enter the cyclone coalescer first, and after centrifugal separation and collision coalescence, gas filtered through the filter screen enters the gas discharge pipe; separated oil and a small amount of gas are centralized in the oil collecting funnel at the upper end of the cyclone coalescer and are discharged from the crude oil discharge pipe; and water of an oil-water mixture after gravity settling in the separating outer barrel is discharged through the drain pipe and solid impurities are discharged through the drain outlet.

Description

technical field [0001] The invention belongs to the technical field of oil / gas / water separation in the petroleum industry, and in particular relates to a compact vertical separation device based on an improved method of a novel separation outer cylinder. Background technique [0002] In the existing technology, as major oil fields around the world gradually enter the middle and late stages of production, the water content in the oil well output gradually increases. The oil / gas / water separation device built in the early stage of development has been difficult to deal with, and it is often used during use. It may happen that the crude oil emulsion with a water content higher than 15% enters the electric dehydrator. Due to the poor adaptability of conventional power frequency / high voltage AC power supply and ordinary exposed metal electrodes to crude oil with high water content, it is difficult for the electric dehydrator to operate normally, and the reconstruction and expansio...

AI Technical Summary

Problems solved by technology

[0007] The technical problems to be solved include: according to the characteristics of centrifugal separation and coalescence, design the structural size of the cyclone coalescer to achieve a satisfactory multi-phase separation effect, and there is no solid phase impurity deposition and clogging; according to the cyclone coalescer Due to the characteristics of liquid crushing and coalescence, a reasonable size of the separation outer cylinder is designed to make the structure of the separator more compact

Images