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A device and method for measuring the microscopic adhesion between hydrate particles in a gas phase system

A hydrate and adhesion technology, applied in measuring devices, mechanical devices, instruments, etc., can solve the problems of high risk factor, high requirements on device safety performance, low operability, etc.

Active Publication Date: 2020-07-07
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole set of devices has the following problems: 1. The experiment is carried out under low temperature and high pressure, which has a high risk factor and requires high safety performance of the device; 2. The device is complicated, the experimental conditions are not easy to control, and the operability is low; 2. The equipment is expensive and cannot be widely used Study on the microcosmic adhesion force between hydrate particles in the gas phase system

Method used

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  • A device and method for measuring the microscopic adhesion between hydrate particles in a gas phase system
  • A device and method for measuring the microscopic adhesion between hydrate particles in a gas phase system
  • A device and method for measuring the microscopic adhesion between hydrate particles in a gas phase system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A device for measuring the microscopic adhesion between hydrate particles in a gas phase system, such as figure 1 As shown, it includes a first microscopic operating system, a second microscopic operating system, a visual reaction device, a camera / video system, a low temperature constant temperature control system, and a temperature acquisition instrument;

[0073] The first microcosmic operating system includes a high-precision first three-dimensional manipulation platform 3 and a first operating arm 7 clamped on the first three-dimensional manipulation platform 3, and the first three-dimensional manipulation platform 3 includes a first XY manipulation platform 17 (model LY-125 -LM-50), the first Z operating platform 18 (model LZ125-2), the contact surfaces of the two are fixed by bolt connection;

[0074] The second microscopic operating system includes a high-precision second three-dimensional manipulation platform and a second operating arm clamped on the second thr...

Embodiment 2

[0078] According to a device for measuring the microscopic adhesion force between hydrate particles in the gas phase system described in Example 1, the difference is that

[0079] The visualized reaction device includes a temperature-controlled circulation tank 11, a circulation fluid inlet 8, a circulation fluid outlet, an operating unit 10, and a double-glazed window 9. The low-temperature constant temperature control system is respectively connected to the temperature-controlled circulation tank 11 through the circulation fluid inlet 8 and the circulation fluid outlet. An operating unit 10 is arranged in the temperature-controlled circulation tank 11, and a double-glazed window 9 is arranged on the side of the operating unit 10 corresponding to the position of the photographing / video recording system.

[0080] The low-temperature constant temperature tank 1 is respectively connected to the circulating fluid inlet 8 and the circulating fluid outlet through the rubber pipeline...

Embodiment 3

[0096] The device described in embodiment 2 measures the method for the microcosmic adhesion between hydrate particles in the gas phase system, such as Figure 4 shown, including the following steps:

[0097] A. Determine the elastic coefficient of glass fiber

[0098] a, the first operating arm 7 is clamped on the first three-dimensional control platform 3, the small cone 22 is placed on the stage of the precision electronic balance 23, the precision electronic balance 23 is opened, and the reading m of the precision electronic balance 23 is recorded 1 ;

[0099] b. Operate the first three-dimensional control platform 3 so that the end of the first glass fiber 21 is in contact with the apex of the small cone 22 on the precision electronic balance 23 stage;

[0100] c. Operate the first Z operating platform 18 to slowly lower the first operating arm 7 by 300-500um, and read the descending displacement Δx through the joystick of the first Z operating platform 18 1 , and re...

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Abstract

The invention relates to a device and a method for measuring microscopic adhesion among hydrate particles in a gas phase system, the device comprises a first micro operating system, a second micro operating system, a visual reaction device, a photographing / picture recording system, a cryogenic constant temperature control system and a temperature acquisition instrument, the first micro operatingsystem comprises a high-precision first three-dimensional operating platform and a first operating arm, the first three-dimensional operating platform comprises a first XY operating platform and a first Z operating platform; the visual reaction device is used for generating the hydrate particles; the photographing / picture recording system is used to obtain the displacement of the hydrate particles in the visual reaction device; the cryogenic constant temperature control system is used to provide a stable operating temperature for the visual reaction device; and the temperature acquisition instrument is used to measure the operating temperature in the visual reaction device in real time. The method for measuring the microscopic adhesion among the hydrate particles in the gas phase system can be used for well measuring the microscopic adhesion among the hydrate particles in the gas phase system.

Description

technical field [0001] The invention relates to an experimental device and method for the microscopic adhesion force between hydrate particles, in particular to a device and method for measuring the microscopic adhesion force between hydrate particles in a gas phase system. Background technique [0002] Gas hydrate is a solid crystal of water molecules in a cage structure. The structural cavities made up of water molecules are filled by small molecules that act to stabilize the crystal lattice. Small molecules include hydrocarbons with small relative molecular masses, such as methane, ethane, propane, as well as hydrogen and carbon dioxide. Deep water and ultra-deep water areas have the characteristics of high pressure and low temperature. Under these conditions, light hydrocarbon components (such as methane, ethane, etc.) in oil and gas gathering and transportation pipelines can easily form natural gas hydrates with water, which seriously affects the safety of pipelines. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 刘陈伟李波锋李明忠张崇瑞
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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