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Device for determining dilational viscoelasticity of liquid film

A measuring device and viscoelasticity technology, which is applied in the field of foam film physical and chemical property measuring devices, can solve problems such as difficulty in level adjustment, and achieve the effect of convenient and fast adjustment

Active Publication Date: 2012-12-12
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is relatively easy to adjust the level of the lower ring, but it is more difficult to adjust the level of the suspended upper ring

Method used

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  • Device for determining dilational viscoelasticity of liquid film
  • Device for determining dilational viscoelasticity of liquid film
  • Device for determining dilational viscoelasticity of liquid film

Examples

Experimental program
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Embodiment Construction

[0041]The liquid film expansion viscoelasticity measurement device includes a liquid film generating device and an upper and lower displacement and sinusoidal vibration generating device. The liquid film generating device is composed of an upper ring assembly, a lower ring assembly and a liquid holding plate. The film pulling ring is suspended by an electronic analytical balance. The lower ring assembly is located in the liquid holding pan and can be integrated with the liquid holding pan to move under the drive of the upper and lower displacement and sinusoidal vibration generating devices. The lower ring assembly is The ring assembly is composed of a metal ring sleeve with a ring groove, a pull-down membrane ring, a liquid-conducting layer of a porous medium material, and a hydrophobic ring-shaped cover plate. The pull-down membrane ring is located in the middle of the metal ring sleeve, and is connected The size is the same and they are coaxial and horizontal; the porous med...

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PUM

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Abstract

The invention relates to a device for determining dilational viscoelasticity of a liquid film, belonging to devices for determining physical and chemical properties of a foam film and comprising a liquid film generating device and an upward-downward displacement and sinusoidal vibration generating device. Due to the design of a liquid feeding pressure adjustment system and an overflow groove of the liquid film generating device, a liquid film thicker or thinner than that generated by natural gravity liquid-discharging can be obtained, furthermore, the liquid-discharging progress is reversible, and the film thickness control is more accurate, a repeat experiment and a comparative experiment are facilitated, and the level of an upper ring of the device is easy to adjust.

Description

technical field [0001] The invention relates to a device for measuring the physical and chemical properties of a foam film, such as measuring the dynamic mechanical properties of a foam film (also called a free liquid film, hereinafter referred to as a liquid film), measuring the separation pressure of a foam film, etc., in particular to a device for measuring the expansion viscoelasticity of a liquid film . Background technique [0002] Foam systems are widely used in industrial and agricultural production and daily life. With the development of the petroleum industry, people are increasingly using foam in exploration, development and oil recovery fields such as drilling, fracturing, acidizing, and tertiary oil recovery. An important characteristic of foam systems is the stability of the foam. Previous studies have shown that solution surface viscoelasticity has an important influence on foam stability, but it should be pointed out that this surface viscoelasticity is mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/00G01N1/28
Inventor 宋新民王红庄马德胜侯庆锋张禹负罗幼松朱友益翁蕊
Owner PETROCHINA CO LTD
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