Simulation test device

Abstract

The invention provides a simulation test device. The simulation test device comprises a pipeline assembly, a fluid output assembly and a signal induction assembly, and the fluid output assembly is connected to the pipeline assembly and used for outputting fluid to the pipeline assembly; the pipeline assembly comprises a normal pipeline and a leakage pipeline, the normal pipeline and the leakage pipeline are detachably connected, and the leakage pipeline is provided with at least one leakage point and used for simulating leakage points possibly existing in an actual underground pipeline; the signal induction assembly is arranged on the pipeline assembly and used for detecting physical field characteristics of the pipeline assembly. According to the simulation test device provided by the invention, the analysis and discrimination capability of the measured physical field signal under the actual well condition is improved.

Description

technical field [0001] The present application relates to the technical field of oil and gas exploitation, in particular to a simulation test device. Background technique [0002] As my country's exploration and development of oil and gas resources continues to increase, the complexity and depth of oil and gas wells also increase. The production tubing string connected by a single tubing is faced with harsh loads and corrosive environments in oil and gas wells as deep as several thousand meters, so it is very prone to thread seal failure, corrosion and stress cracking, etc., resulting in string failure. The high-pressure fluid inside the pipe escapes to the outside of the pipe string, generating high pressure at the wellhead of the oil and gas well, which may cause serious accidents such as pipe string fracture. Therefore, accurately identifying and locating the location and type of the leakage point of the production pipe string has become one of the key issues in the safe ...

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Problems solved by technology

[0004] However, the size and shape of the leak point, the temperature, flow and pressure of the leaking fluid, and the external environment of the leak point will all affect the physical field characteristics near the leak point. At the same time, the downhole environment is very complex, and the leak point is often very small. The changes in physical fields such as flow rate, temperature, and pressure caused by the flow rate, temperature, and pressure are not significant, and there are still production noise and formation fluid flow noise downhole. Shape, size and other parameters

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