Method for determining emulsifying performance of additive
A technology for emulsifying properties and determining methods, applied in the field of detection, can solve problems such as low accuracy of methods, and achieve the effect of improving accuracy
Pending Publication Date: 2021-06-29
PETROCHINA CO LTD
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Problems solved by technology
[0005] In order to solve the problem of low accuracy of the method in the related art, the embodiment of the present application provides a method for determining the emulsification performance of additives
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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0051] At present, the full-line water-filled intermodal transportation before the pipeline is put into production means that after the water transportation of the entire pipeline is completed, the low-lying areas inside the pipeline and the small amount of water remaining at the turning point of the pipeline are filled with oil containing additives such as anti-wear agents. Oil and water mix as they flow through the pipe, forming a water-in-oil emulsion.
[0052] In the method for determining the emulsification performance of additives in related technologies, the final result is judged by visual observation, that is, the influence of current additives on pipeline oil transportation is judged by visually observing the degree of oil-wat...
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Abstract
The invention discloses a method for determining the emulsifying performance of an additive, which belongs to the technical field of detection, and is used for determining the influence of the additive on the emulsifying performance of pipeline oil. The method comprises the following steps of: adding a specified amount of deionized water into first additive oil and second non-additive oil; emulsifying the first additive oil and the second non-additive oil which are added with the specified amount of deionized water to obtain the first additive oil containing a water-in-oil emulsion and the second non-additive oil containing the water-in-oil emulsion; standing the first agent-added oil containing the water-in-oil emulsion and the second agent-unadded oil containing the water-in-oil emulsion for a preset time length; acquiring the mass moisture content of the upper layer oil of the first agent-added oil containing the water-in-oil emulsion and the mass moisture content of the upper layer oil of the second agent-unadded oil containing the water-in-oil emulsion after standing; and determining the influence degree of the additive on the emulsifying property of the pipeline oil according to a difference value of the mass moisture content, wherein the difference value of the mass moisture content is in positive correlation with the influence degree of the additive on the emulsifying property of the pipeline oil.
Description
technical field [0001] The present application relates to the technical field of detection, in particular to a method for determining the emulsification performance of additives. Background technique [0002] At present, before the oil pipeline is put into production, water can be transported to the entire pipeline, so as to test the safety performance, equipment debugging and engineering quality of the pipeline during the water transportation process, and inject oil into the pipeline after the testing and debugging are normal. , The oil injected into the pipeline usually contains additives, and different kinds of additives can improve the performance of the oil. When the additive oil is transported, the residual water and oil in the pipeline will form a water-in-oil emulsion under the action of the additive during the flow process, and the flow pressure of the water-in-oil emulsion will increase and decrease during the process of flowing through the pipeline. pipeline capa...
Claims
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IPC IPC(8): G01N33/28
CPCG01N33/28Y02A90/30
Inventor 李旺王玮姜海斌舒浩纹宫敬张思杨于志鹏冯亮陈莎王丹
Owner PETROCHINA CO LTD