Interface tension measuring device and method by hanging drop or bubble blowing way under high pressure

An interfacial tension and measuring device technology, applied in the direction of surface tension analysis, etc., can solve the problems of temperature control and the inability to switch quickly between the two measurement methods, and cannot withstand high pressure, etc., to achieve easy operation, controllable and measurable pressure, accurate measurement. Effect

Inactive Publication Date: 2013-11-27
DALIAN UNIV OF TECH
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Problems solved by technology

[0005] The invention provides a hanging drop or bubbling method interfacial tension measurement device and measurement method under high pressure, wh

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  • Interface tension measuring device and method by hanging drop or bubble blowing way under high pressure
  • Interface tension measuring device and method by hanging drop or bubble blowing way under high pressure
  • Interface tension measuring device and method by hanging drop or bubble blowing way under high pressure

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Embodiment Construction

[0021] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0022] Taking the droplet method to measure the interfacial tension as an example, combined with figure 1 , Fig. 2 (a), Fig. 2 (b) further illustrate the working process of the present invention as:

[0023] Place the metal window pressure chamber 11 on the support frame 312 and adjust its position so that the thin injection tube 21 is in a position perpendicular to the horizontal plane, and then tighten the locking bolt 313 . Adjust the depth of the injection thin tube 21 inserted into the metal window pressure chamber 11, turn on the backlight 42 and open the camera software on the data processing computer 43, observe through the CCD camera 41, when the outlet end face of the injection thin tube 21 is in the center of the window of the CCD camera 41 When locking the injection capillary 21 with an adjustable ferru...

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Abstract

The invention relates to an interface tension measuring device and method by a hanging drop or bubble blowing way under high pressure and belongs to the technical field of high-temperature high-pressure interface tension measuring. The device comprises a window pressure chamber device composed of a metal pressure chamber cylinder body and high pressure resistant glasses at two ends, a liquid drop/bubble injection device, a support and locking device and a photo and data processing device, wherein a liquid/gas inlet hole is formed in the side wall of the pressure chamber cylinder body and connected with a gas cylinder or a liquid charging pump through a quick connector, so as to realize the feeding of environmental gas or liquid into the pressure chamber cylinder body; a liquid/gas outlet hole is connected with a three-way connector, one path of the three-way connector is connected with a drain valve, and the other path is connected with a vacuum pump for vacuum-pumping of the pressure chamber; the liquid drop/bubble injection device comprises an injection tube and a pressure sensor; the injection tube is inserted into the cylinder body, and is sealed and connected with the pressure sensor to monitor the injection pressure, and the other end of the injection tube is connected with the liquid charging pump or the gas cylinder through a precision needle valve; the support and locking device comprises a base, a support frame and a locking bolt; the photo and data processing device comprises a CCD camera, a backlight and a data processing computer.

Description

technical field [0001] The invention belongs to the technical field of surface and interfacial tension measurement, and relates to a measuring device and a measuring method for measuring the interfacial tension between oil and gas (nitrogen, carbon dioxide, gaseous hydrocarbon, etc.) by means of a hanging drop or bubbling method under high pressure. Background technique [0002] Using nitrogen, carbon dioxide, gaseous hydrocarbons and other gases to displace crude oil is an effective means of enhanced oil recovery (Enhanced Oil Recovery, EOR). The interfacial tension between crude oil and gas during the injection process is one of the important control parameters for the flow and redistribution of crude oil in the formation, and it is also an important factor affecting the displacement efficiency. Therefore, before carrying out the actual displacement project, it is necessary to accurately measure the interfacial tension between the crude oil and the displacement gas, and an...

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Application Information

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IPC IPC(8): G01N13/02
Inventor 刘瑜宋永臣蒋兰兰赵越超杨明军赵佳飞张毅王大勇
Owner DALIAN UNIV OF TECH
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