Hydrate evaluation experiment system and method

An experimental system and hydrate technology, which is applied in the field of hydrate evaluation experimental system, can solve problems such as insufficient precision, insufficient stability of output pressure, and inconvenient experimental research, and achieve the effects of guaranteed accuracy, stable control, and guaranteed experimental results

Pending Publication Date: 2020-09-11
CHINA HUANENG GRP CO LTD +1
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Problems solved by technology

[0005] The existing experimental systems for the synthesis and exploitation of hydrates have the following disadvantages: (1) The research objects are mainly for natural gas hydrates, and few for CO 2 Hydrated
(2) There is no research on the properties of hydrate inhibitors and accelerators
(3) When the corresponding gas and liquid are output, the design of the control of the pressure is relatively simple, especially in the decompression decomposition experiment, the output pressure is not stable enough, and there may be pulses, which affect the accuracy of the measureme

Method used

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  • Hydrate evaluation experiment system and method

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] Such as figure 1As shown, a hydrate evaluation experimental system provided by the present invention includes a first gas cylinder 1, a second gas cylinder 2, a first valve 3, a second valve 4, a gas booster pump 5, a first safety valve 6, High pressure storage tank 7, first pressure gauge 8, pressure regulating valve 9, second pressure gauge 10, third valve 11, flow controller 12, fourth valve 13, fifth valve 14, first liquid pool 15, constant pressure Pump 16, sixth valve 17, first piston 18, seventh valve 19, eighth valve 20, second piston 21, ninth valve 22, back pressure valve 23, tenth valve 24, air compressor 25, low pressure storage Tank 26, second safety valve 27, eleventh valve 28, twelfth valve 29, thirteenth valve 30, cleaning container 31, fourteenth valve 32, second liquid pool 33, constant flow pump 34, tenth Five valve 35, third pisto...

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Abstract

The invention provides a hydrate evaluation experiment system and method. The hydrate evaluation experiment system comprises a first gas cylinder, a second gas cylinder, a flow control device, a flowcontroller, a magnetic stirring container, a chemical reagent injection device, a closed loop and the like. The first gas cylinder is used for storing CH4 or natural gas mixed gas; a gas outlet of thefirst gas cylinder is connected with the magnetic stirring container through the flow controller; the second gas cylinder is used for storing CO2 gas; a gas outlet of the second gas cylinder is connected with the magnetic stirring container through the flow control device; a chemical reagent injection port is formed in the magnetic stirring container and is connected with an outlet of the chemical reagent injection device; and the closed loop is respectively connected with the first gas cylinder, the second gas cylinder and the chemical reagent injection device through a twentieth valve. According to the method, hydrate formation can be simulated, meanwhile, the influence on hydrate formation and decomposition rules is analyzed, and further detailed analysis and research can be carried out conveniently to guide production.

Description

technical field [0001] The invention relates to the field of hydrate development, in particular to a hydrate evaluation experimental system and method. Background technique [0002] Natural gas hydrate is a naturally occurring compound with a cage-like microstructure. It is an efficient and clean energy source with a high calorific value of combustion. Its combustion energy is dozens of times higher than that of ordinary fossil fuels of the same quality. Natural gas hydrate is a cage crystal compound formed by small molecules of light hydrocarbon gas such as methane in natural gas and water molecules under certain temperature and pressure conditions, which is similar in appearance to loose ice or dense snow. [0003] With the further study of it, many mining methods have been proposed. The main principle is to change the temperature and pressure of the combustible ice reservoir, break its phase balance, and decompose the combustible ice to obtain methane gas. In the process...

Claims

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Application Information

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IPC IPC(8): G01N33/22B01J19/18B01J4/02C10L3/10B01J10/00
CPCG01N33/222B01J19/18B01J4/001B01J4/02B01J4/008C10L3/108B01J10/00
Inventor 张健王金意荆铁亚赵文韬张国祥
Owner CHINA HUANENG GRP CO LTD
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