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High-temperature emulsification dynamic testing instrument and method

A high-temperature emulsification and tester technology, applied in instruments, measuring devices, mechanical devices, etc., can solve the problems of difficulty in measuring the initial emulsification amount, difficult to read, and oil adheres to the wall surface, and achieves repeatable operation and experimental cycle. Short, error-eliminating effect

Active Publication Date: 2017-06-20
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ① Emulsification evaluation experiments cannot be carried out under high temperature conditions (especially over 100°C);
[0005] ②Oil samples often adhere to the wall, making it difficult to read;
[0006] ③ It is impossible to measure the position of each phase interface during the emulsification process, and it is impossible to obtain the dynamic information of the emulsification process;
[0007] ④The suspension of oil droplets caused great difficulty in the determination of the initial emulsification amount;
[0008] ⑤The emulsification conditions of the manual method are difficult to quantitatively control

Method used

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  • High-temperature emulsification dynamic testing instrument and method

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Embodiment 1

[0086] This embodiment provides a high-temperature emulsification dynamic tester, and its structural schematic diagram is as follows figure 1 shown.

[0087] The high-temperature emulsification dynamic tester includes a visual emulsification unit, and a vibration unit and a temperature control unit that are respectively connected to the visual emulsification unit; wherein,

[0088] The visible emulsification unit includes a temperature-resistant and pressure-resistant glass cylinder 1, a steel ruler 2 and a glass test tube 5; ℃ high temperature and 1.5MPa pressure; the top of the steel ruler 2 is connected to the top of the temperature-resistant and pressure-resistant glass cylinder 1, and the bottom of the steel ruler 2 is suspended and not connected to the bottom of the temperature-resistant and pressure-resistant glass cylinder 1. The steel ruler 2 is along the direction from the top to the bottom, and the scale value thereon decreases gradually; the top of the glass test...

Embodiment 2

[0092] The present embodiment provides a high-temperature emulsification dynamic test method, which includes the following steps:

[0093] Add the pre-prepared emulsifier solution (water phase) into the glass test tube 5 first, then add the oil sample (oil phase), the volume ratio of the two is 1:1, after adding the oil sample, tighten the cork to seal.

[0094] Put the glass test tube 5 into the temperature-resistant and pressure-resistant glass cylinder 1, keep the glass test tube 5 vertically upward, at this time, the water phase is on the bottom, and the oil phase is on the top; at the same time, the initial scale value on the steel ruler 2 is at the bottom of the water phase On the same horizontal line / plane for easy reading of height.

[0095] Inject deionized water as a heating medium into the temperature-resistant and pressure-resistant glass cylinder 1, and immerse the glass test tube 5. Turn on the temperature controller 6 and set the temperature as the target oil r...

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Abstract

The invention provides a high-temperature emulsification dynamic testing instrument and method. The high-temperature emulsification dynamic testing instrument comprises a visual emulsification unit, and a vibration unit and a temperature control unit which are connected with the visual emulsification unit respectively. The high-temperature emulsification dynamic testing method comprises the following steps: adding an emulsifier solution and an oil sample into a visual test tube; heating a liquid medium to pre-set temperature; reading water-phase height and total height of oil and water phases; starting the vibration unit and reading interface height of an oil phase-emulsification band and a water phase-emulsification band in real time; stopping the vibration unit, and reading interface height of the oil phase-emulsification band and the water phase-emulsification band as soon as an emulsification process is finished and after a certain time; determining an emulsification coefficient and an emulsion stability coefficient and finishing testing. According to the high-temperature emulsification dynamic testing instrument and method, dynamic change data of the interface height of the oil phase-emulsification band and the water phase-emulsification band is accurately measured in an oil-water emulsification process and a standing demulsification process; emulsification conditions can be accurately controlled, the operation is simple and convenient and an experiment period is short.

Description

technical field [0001] The invention relates to a high-temperature emulsification dynamic tester and a test method, belonging to the technical field of emulsification performance testing. Background technique [0002] In many industrial and technical fields, it involves the testing and evaluation of oil-water emulsification ability and emulsion stability under high temperature conditions. For example, in the field of oil extraction, especially in the chemical flooding process containing surfactants, the oil-water emulsification ability and emulsion stability are important factors affecting the oil displacement efficiency and sweep efficiency. Therefore, under the conditions of reservoirs (especially high-temperature reservoirs), the evaluation method of oil-water emulsification ability and emulsion stability is an urgent need for the research of chemical flooding theory and technology. [0003] The existing test methods for oil-water emulsification and emulsion stability ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/00
CPCG01N19/00
Inventor 岳湘安杨长春张立娟张雪楠李超跃
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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