Detection device of physical property of natural gas supercritical flow state

A technology of flow state and measuring device, which is applied in the direction of DC flow characteristic measurement, measuring device, using the flow characteristics of fluid to determine specific gravity, etc., and can solve problems that have not been reported.

Inactive Publication Date: 2010-05-19
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few studies in this area, and the experimental device for measuring the

Method used

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  • Detection device of physical property of natural gas supercritical flow state
  • Detection device of physical property of natural gas supercritical flow state

Examples

Experimental program
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Embodiment 1

[0011] Embodiment 1: in combination with figure 1 , Natural gas density measurement under supercritical conditions: the invention is used to simulate the natural gas wellbore flow law under supercritical conditions in ultra-deep natural gas wells, and measure the natural gas density. It mainly consists of natural gas tank 1, control valve 2, 3, booster pump 4, heating unit 5, temperature controller 6, check valve 7, flow meter 8, flow test section 9, thermometer 10, back pressure control system 11, The cooling system 12, the temperature controller 13, the buffer tank 14 and the pressure reducing valve 15 are composed. The natural gas in the natural gas tank 1 is further pressurized by the booster pump 4 and heated to the simulated gas reservoir temperature by the heating unit 5 and the temperature controller 6. After the check valve 7 and the flow meter 8, it enters the flow test section 9 to form a supercritical flow. The back pressure control system 11 controls the pressure ...

Embodiment 2

[0014] Embodiment 2: in combination with figure 1 , the present invention is further described in detail (natural gas viscosity measurement under supercritical conditions):

[0015] It is used to simulate the flow law of natural gas wellbore under supercritical conditions in ultra-deep natural gas wells, and measure the viscosity of natural gas. Its structure is the same as that of Embodiment 1, except that the differential pressure sensor 19 is used to measure the differential pressure of the test section under different temperature and pressure conditions, and the viscosity of the natural gas can be obtained through calculation.

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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...

Claims

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Application Information

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IPC IPC(8): G01M10/00G01N9/32G01N11/08
Inventor 孙宝江李昊于忠高永海
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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