An experimental device for measuring the comprehensive influence factors of the fluid in the continuous oil pipe

Abstract

The invention discloses an experiment device for measuring comprehensive influencing factors of fluid in coiled tubing. The experiment device comprises an oil tank main body, a variable frequency motor, a high-temperature gear pump, a first one-way valve, a proportional overflow valve, a throttle valve, a flow transmitter, first coiled tubing, a high-temperature-resistant transparent glass tube and second coiled tubing. The oil tank main body, the variable frequency motor and the first one-way valve are connected in sequence through pipelines; the first one-way valve is connected with the proportional overflow valve and the throttle valve through a three-way valve; the flow transmitter is connected with the first coiled tubing through a first four-way valve; the first coiled tubing is connected with the second coiled tubing through the high-temperature-resistant transparent glass tube; the second coiled tubing is connected with the oil tank main body through a second four-way valve and a hand valve in sequence; and the first four-way valve and the second four-way valve are respectively connected with a pressure transmitter and a temperature transmitter in parallel. The oil tank main body comprises a heating device, a cooling system and a temperature transmitter. The experiment device can measure influence of different cables on crude oil wax deposition, flow velocity and pressure.

Description

Technical field: [0001] The invention belongs to the technical field of mechanical internal flow field measurement experiments, and in particular relates to an experimental device for measuring comprehensive influencing factors of fluids in continuous oil pumping pipes. Background technique: [0002] Coiled oil tubing is a coiled tubing product with a built-in cable. During use, the built-in cable is affected by fluid turbulence, and the state of the cable will also damp the fluid. Application of oil well pipe. At present, the crude oil produced in most oilfields in my country is heavy oil and waxy oil. In the process of crude oil extraction and transportation, the rheological characteristics and viscosity-temperature characteristics of the fluid are the key physical performance parameters of the coiled tubing, and their traditional test analysis uses numerical values. There is a certain gap between the evaluation results and the actual operating parameters by means of simul...

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Problems solved by technology

At present, among various experimental devices for experimental research on pipeline fluid characteristics, waxy oil deposition characteristics, etc., some of them have relatively simple test and analysis functions, limited test range, and cumbersome operations. However, this type of experimental device is difficult to apply, and needs to be modified or redesigned. The utilization rate of the equipment is low, and it is not suitable for simulating the situation of the coiled tubing in the actual working conditions of the oil field.

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