High-temperature high-pressure shaft simulator

Abstract

The invention provides a high-temperature high-pressure shaft simulator comprising a circulating mechanism, a temperature and pressure control mechanism, and a data measuring and acquiring mechanism. The circulating mechanism comprises a reciprocating circulating pump, a circulating oil pipe and a sample distributor-converter; the reciprocating circulating pump is connected with inlet and outlet ends of the circulating oil pipe; the sample distributor-converter is connected with the inlet end of the circulating oil pipe; the circulating oil pipe has an ascent segment and a descent segment connected through a transitional segment; the temperature and pressure control mechanism comprises an oil bath circulating sleeve, an oil bath thermostat and a pressure regulating pump; the oil bath circulating sleeve sleeves the circulating oil pipe and is connected with the oil batch thermostat; the pressure regulating pump is connected with the sample distributor-converter; the data measuring and acquiring mechanism comprises a plurality of sensors connected to the circulating oil pipe. The high-temperature high-pressure shaft simulator has the advantages that a high-temperature high-pressure underground environment and flowing of produced fluid in a shaft during production can be simulated, the influence of different production conditions upon frictional resistance and flowing form during crude oil lifting is studied through real-time monitoring, and the simulator is of promising engineering application value and academic value.

Description

Technical field [0001] The invention relates to the technical field of oil production engineering, and relates to a wellbore simulation device, particularly a high temperature and high pressure wellbore simulation device suitable for simulating the production process of crude oil from a reservoir to a wellhead; it can also be applied to different gas injection conditions Simulation of wellbore production. Background technique [0002] At present, the flow of oil-gas-water three-phase mixture is widely used in petroleum, chemical industry and other related industries. Especially in the petroleum industry, the flow of oil-gas-water three-phase mixture is quite common, making the study of its flow law especially important. In the process of oil reservoir exploitation, the existence of side and bottom water is quite common, and in the middle and late stages of exploitation, water injection and gas injection are often used to supplement the formation energy to continue to exploit the ...

AI Technical Summary

Problems solved by technology

In the vertical wellbore, the research on the three-phase flow law is mainly based on the gas-liquid two-phase flow theory, and various mathematical models are established to calculate the pressure drop and friction of the vertical wellbore, and there is a lack of substantial physical model experimental equipment to verify the theory. , if the flow pressure drop of a long wellbore is calculated, errors will inevitably appear, and will hinder the actual industrial development

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