Method for testing temperature tolerance of thick oil emulsifying viscosity reducer
A technology of emulsification viscosity reduction and testing method, which is applied in the direction of chemical analysis by titration method, can solve the problem of single temperature resistance or anti-mineral salt performance, and achieve the effect of reducing test cost, simple test steps and high test accuracy
Inactive Publication Date: 2013-05-08
宋倩
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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.
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Embodiment
[0031] The test method of the temperature resistance of the viscous oil emulsified viscosity reducer involved in the present embodiment comprises the following steps:
[0032] (a) prepare viscous oil emulsified viscosity reducer for subsequent use;
[0033] (b) preparing viscous oil emulsified viscosity reducer solution;
[0034] (c) select different heavy oil for standby;
[0035] (d) placed in a high-temperature container for processing for a period of time;
[0036] (e) After high temperature treatment, use two-phase titration to measure the surfactant concentration, and measure the viscosity-reducing ability of the treated surfactant. Through the measured data, analyze the temperature resistance of different viscous oil emulsified viscosity-reducing agents.
[0037] Described step (a) comprises:
[0038] (a1) condensation reaction of octylphenol polyoxyethylene ether and formaldehyde;
[0039] (a2) sulfonation reaction of co-condensation polymer and concentrated sulfur...
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Abstract
The invention discloses a method for testing temperature tolerance of a thick oil emulsifying viscosity reducer. The method comprises the steps of: (a) preparing the thick oil emulsifying viscosity reducer for later use; (b) preparing a thick oil emulsifying viscosity reducer solution; (c) selecting different types of thick oil for later use; (d) placing the thick oil emulsifying viscosity reducer solution in a high temperature container for treatment for a period; and (e) after the high temperature treatment, testing the concentration of a surfactant by using a two-phase titration method, testing the viscosity reducing capability of the treated surfactant, and analyzing the temperature tolerance of different thick oil emulsifying viscosity reducers according to the tested data. By virtue of the method, the temperature tolerance of the thick oil emulsifying viscosity reducer can be rapidly tested with high testing accuracy and simple testing steps, additionally the testing cost is reduced greatly, and a theoretical basis is provided for the use of the thick oil emulsifying viscosity reducer.
Description
technical field [0001] The invention relates to a method for testing the temperature resistance of a thick oil emulsified viscosity reducer. Background technique [0002] 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 industry has developed faster than conventional oil. The annual output of heavy oil and tar sands has increased from 20 million tons to nearly 100 million tons, and its importance has attracted increasing attention. The difficulty of heavy oil reservoir development is mainly manifested in two aspects: on the one hand, the viscosity of heavy oil is high, and the seepage resistance of heavy oil in the oil layer is large, so that the heavy oil cannot flow from the reservoir to the bottom of the well; on the other hand, even in the reservoir Under certain conditions, the heavy oil can flow into the bottom ...
Claims
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IPC IPC(8): G01N31/16
Inventor 宋倩
Owner 宋倩