Visual wheel tube device for evaluating performance of hydrate inhibitor

Abstract

The invention discloses a visual wheel tube device for evaluating performance of a hydrate inhibitor. The device comprises a high-pressure gas cylinder, a high-pressure stainless steel wheel tube reactor, a temperature sensor, a pressure sensor, a wireless signal transmitting terminal, a wireless signal receiving terminal, an adjustable-speed motor, a vacuum pump, a walk-in high-low temperature test chamber, a data acquisition recorder and a computer. Compared with a traditional device for judging the generation time of a hydrate by virtue of a temperature pressure signal, the device disclosed by the invention can be used for judging the generation time of the hydrate by virtue of more than one mode such as a torque signal and a visual window, and judging whether the interior of a wheel tube is blocked or not according to fluid flow data transmitted by a borescope and an online particle analyzer in real time. The visual wheel tube device is capable of efficiently screening low dose of the hydrate inhibitor and also evaluating the performance of a thermodynamic inhibitor and a combined inhibitor. Thus, the visual wheel tube device disclosed by the invention is an excellent device for evaluating the performance of the hydrate inhibitor.

Description

Technical field [0001] The invention involves the field of performance evaluation of hydrophilic object inhibitors, and it involves a high -voltage visual wheel tube reaction device that evaluates the performance of hydraulic inhibitors. Background technique [0002] Under low temperature and high pressure conditions, various low -boiling points such as methane, ethylene, propane, carbon dioxide, hydrogen sulfide, etc., which are mixed with gas and water in natural gas.A type of cage -shaped crystal formed by boiling point light hydrocarbons.In the process of mining and processing and transportation of natural gas and oil, this kind of cage -type aquarmers can easily block the pipelines. The blockage of the pipeline not only seriously affects the normal production of the factory, but also brings more serious safety and environmental pollution. [0003] At present, the most effective way to inhibit natural gas hydraulic is to add chemical inhibitors, including hydraulic thermodyna...

AI Technical Summary

Problems solved by technology

The high-pressure reactor with stirring replaces the flow of fluid in the actual pipeline with the disturbance of the solution excited by stirring, which is difficult to simulate the complex conditions of actual operation, which is quite different from the actual situation; on the other hand, this type of device uses hydration reaction to discharge Thermally induced temperature rise and gas depletion induced pressure drop signals can only initially screen hydrate kinetic inhibitors but cannot evaluate anti-aggregation performance

The large-scale circulation device driven by a pump to circulate fluid is mainly used to evaluate the safety of fluid flow. In the evaluation of inhibitors, due to the long test cycle, complex operation, large volume of injected liquid, high gas consumption, large investment, and inability to quickly and efficiently screen hydration Cannot be widely used due to shortcomings such as drug inhibitors

Invention patent US8334141B discloses a circulation experimental device with multiple loops running together, which uses magnetic fields or electromagnetic waves to excite the movement of small balls in small loops for experiments. Although this device can quickly screen low-dose hydrate inhibitors, it cannot avoid the effects of magnetic fields. There is interference with hydrate formation

Because there have been a number of relevant literature reports that the magnetic field or electromagnetic wave itself affects the formation rate of hydrates and interferes with the formation of hydrates, so the evaluation results of this evaluation device cannot objectively reflect the inhibitory effect of the hydrate inhibitor itself.

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