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Method for testing stability of thickened oil

A test method and stability technology, which is applied in the field of heavy oil stability test, can solve the problem of single temperature resistance or anti-mineral salt performance, and achieve the effect of low test cost and high test accuracy

Inactive Publication Date: 2013-04-17
王兴洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently used emulsifying viscosity reducers only have a single temperature-resistant or mineral-salt-resistant performance, that is, the research and development of temperature-resistant and mineral-salt-resistant emulsified viscosity reducers is still rare.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] A kind of testing method of heavy oil stability that present embodiment relates to, comprises the following steps:

[0026] (a) preparing thick oil emulsion;

[0027] (b) placed in the experimental container;

[0028] (c) placing the experimental container in a constant temperature oven for a period of time;

[0029] (d) Record the amount of deposited water at the bottom of the measuring cylinder, and divide the amount of deposited water by the total amount of water in the heavy oil emulsion to obtain the sedimentation dehydration rate;

[0030] (e) The stability of the heavy oil is analyzed through the sedimentation dehydration rate, and the heavy oil emulsion with a high sedimentation dehydration rate is unstable.

[0031] In the step (a), the thick oil emulsion has a thick oil-to-water ratio of 7:3, and the added amount of the viscosity reducer is 0.5%.

[0032] In the step (b), the experimental container is a stoppered measuring cylinder.

[0033] In the step (c...

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Abstract

The invention discloses a method for testing stability of thickened oil. The method comprises the steps of: (a) preparing a thickened oil emulsion; (b) putting the emulsion into an experimental container; (c) standing the experimental container into a constant temperature oven for a period of time; (d) recording the deposition water amount at the bottom of a measuring cylinder, dividing the deposition water amount by total moisture content in the emulsion of the thickened oil to obtain the settling dehydration rate; and (e) analyzing the stability of the thickened oil through the settling dehydration rate, and judging that the thickened oil emulsion with high settling dehydration rate is unstable. The stability of the thickened oil can be rapidly tested by the method; and the method is high in test accuracy and low in test cost, and data support is provided for mining of the thickened oil.

Description

technical field [0001] The invention relates to a method for testing the stability of heavy oil. Background technique [0002] Against the backdrop of strong oil demand, high oil prices and declining production of conventional heavy oil, the oil industry is shifting its focus to heavy oil production in many parts of the world. Global oil resources are about 9-13 trillion barrels (1.4-2.1 trillion cubic meters), [0003] Conventional heavy oil only accounts for 30% of it, and the rest is heavy oil, super heavy oil and bitumen. Heavy oil and tar sand resources are important energy sources in the world. The current global recoverable reserves are about 400 billion tons, which is 2.7 times that of conventional heavy oil recoverable reserves of 150 billion tons. [0004] As the availability of conventional oil is decreasing day by day, heavy oil is becoming an important energy source for mankind in the next century. After more than 20 years of hard work, the global heavy oil i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28
Inventor 王兴洋
Owner 王兴洋
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