Detection device of physical property of natural gas supercritical flow state

Abstract

The invention relates to a testing experimental platform, in particular relating to a detection device of the physical property of a natural gas supercritical flow state. The technical scheme is that the natural gas in a natural gas tank is further boosted by a booster pump, is heated to the temperature of simulated gas reservoir through a heating unit and a temperature controller, and enters into a flowing test section through a check valve and a flowmeter to form supercritical flow; a backpressure control system controls gas reservoir pressure value needing to be stimulated; a cooling system and the temperature controller cool the gas flowing out from the testing section; and a buffer tank can depressurize the effluent gas to achieve the temperature and pressure condition of the booster pump. The detection device of the invention has the beneficial effects that the density and the viscosity of the five-element parameters of the natural gas can be detected under the high temperature and high pressure supercritical condition. The device can realize wellhole gas flow stimulation and physical property parameter testing under the supercritical conditions, and flowing stimulation of the natural gas under the undercritical conditions.

Description

1. Technical field: [0001] The invention relates to a simulation and test experiment platform for natural gas flow in a supercritical pipeline, in particular to a physical property measurement device for natural gas supercritical flow state capable of simulating high temperature and high pressure supercritical state conditions. 2. Background technology: [0002] Oil and gas resources are important strategic materials to ensure national economic, political, and military security, and are related to national economic and social development, as well as national security. With the rapid development of the national economy, our country has entered a new stage of development. In order to alleviate the contradiction between my country's energy supply and demand and meet the needs of my country's national economic and social development, with the deployment and implementation of the national energy strategy, the importance of natural gas development in my country's energy strategy h...

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Problems solved by technology

At present, there are few studies in this area, and the experimental device for measuring the physical properties of natural gas flow under supercritical conditions has not been reported.

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