Water removing system for gas-water-containing crude oil and application method of system

Abstract

The invention discloses a water removing system for gas-water-containing crude oil and an application method of the system. With the adoption of the system and the application method, water in an oil and gas and water system can be removed and reach the standard for discharge, energy consumption of follow-up pipeline transportation and equipment abrasion are reduced, and treatment pressure of the existing oil-gas-water separation device is reduced. The system comprises a bifurcation pipeline, a buffer tank and a columnar swirler, wherein the bifurcation pipeline comprises an upper inclined pipe, a lower horizontal pipe and a plurality of vertical pipes, and is used for removing gas and a part of oil from coming liquid; the buffer tank operates by controlling an oil-water interface in a tank body; and the columnar swirler is used for treating liquid at a lower outlet of the buffer tank to allow the liquid to reach the standard for discharge. With the adoption of the system and the application method, as several principles of gravity, expansion, centrifugation and the like are combined, the water in the gas-water-containing crude oil is treated directly; defects that the existing water treatment system is narrow in application scope and low in treatment efficiency are overcome; and treatment procedures and equipment weight are reduced. The water removing system is applicable to onshore oil fields and offshore oil fields, and is very good in industrial application prospect.

Description

technical field [0001] The invention relates to the field of petrochemical equipment, in particular to a water removal system for crude oil containing gas and water and an application method thereof. Background technique [0002] In petrochemical, environmental protection and other fields, oil, gas and water separation and water treatment equipment are important production devices. Currently, oil well production fluids are transported by pipelines to treatment stations or offshore platforms for oil, gas and water separation and sewage treatment. At present, in onshore and offshore oil fields, with the continuation of exploitation, the water content of oil wells is getting higher and higher, and often accompanied by a large amount of gas. Therefore, compared with the same oil production, the energy consumption of pipeline transportation has been greatly increased, and the efficiency has been continuously reduced. At the same time, the increase in water treatment capacity an...

AI Technical Summary

Problems solved by technology

However, in actual production, it is often necessary to quickly separate a large amount of oil-gas-water mixture. Gravity principle and filtration technology are effective separation techniques, but the processing speed is relatively slow, which leads to complex structure and bulky equipment

The invention patent application with the application number 200710175999.3 discloses a separation system composed of trapezoidal tubes, spiral tubes and gravity settling container gas. The centrifugal acceleration produced is low, not suitable for the fine treatment of water, and at the same time, it cannot handle the incoming liquid containing gas well

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