A system and method for testing sand deposition and separation performance of a slug catcher

Abstract

The invention relates to a slug catcher sand deposition and separation performance testing system and method. The system comprises a gas phase supply system, a liquid phase supply system, an online quantitative sand adding system, a slug catcher testing system, and a data acquisition system. The online quantitative sand adding system is arranged on a main pipeline. The front end of the main pipeline is connected to the gas phase supply system and the liquid phase supply system, and the back end of the main pipeline is connected to the slug catcher testing system. Gas, liquid and solid mediums in the gas phase supply system, the liquid phase supply system and the online quantitative sand adding system are collected at the back end of the main pipeline to form gas, liquid and solid flows, the gas, liquid and solid flows enter into the slug catcher testing system to be separated, the data acquisition system collects and processes related parameters in the separation process, and the comprehensive evaluation and optimization of the separation effect of the slug catcher are realized. The system and the method can be widely applied to performance testing of a slug catcher sand separation effect and optimization design of the slug catcher.

Description

technical field [0001] The invention relates to the technical field of multiphase separation of oil and gas gathering and transportation systems, in particular to a sand deposition and separation performance testing system and method of a slug trap. Background technique [0002] The slug catcher is a device that can provide buffer volume, collect slug liquid, and separate gas and liquid, and is widely used in oil and gas field production. During the gas production process, slug flow will be generated due to terrain undulation or condensate precipitation, and preliminary gas-liquid separation must be carried out in the slug trap. However, with the development of gas fields, sand production has occurred in some gas fields. The produced sand is transported to the entire production system through pipelines and slug traps, which has a serious impact on the production process system and production equipment, such as erosion and corrosion of pipelines and equipment, and poor treat...

AI Technical Summary

Problems solved by technology

The Chinese patent name is oil and gas mixed transportation slug flow catcher (application number CN200820173799.4) discloses a kind of oil and gas mixed transportation slug flow catcher, its advantage is to solve the influence of mixed transportation pipeline slug flow on production, The project cost is reduced, but the condition of the incoming flow is not considered enough. During the slug flow, the huge slug flow energy will greatly disturb the separation field and affect the gas-liquid separation efficiency

This patent discloses sand removal equipment and sand removal method, but fails to give the evaluation index and evaluation method of the sand removal effect of the equipment

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