A kind of super heavy oil demulsifier and preparation method thereof

A crude oil demulsifier and demulsifier technology, applied in the field of super heavy oil demulsifiers, can solve the problems of unsatisfactory demulsification, achieve clear and smooth oil-water interface, facilitate coalescence and flocculation, and have good synergy
CN107474873BActive Publication Date: 2020-04-03盘锦富隆化工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
盘锦富隆化工有限公司
Publication Date
2020-04-03

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Abstract

The invention discloses an ultra-thick oil demulsifier and a preparation method. The ultra-thick oil demulsifier is prepared from the following components in percentage by weight: 40 to 65% of reverse head oil DP type crude oil demulsifier, 10 to 40% of mixed oil head MU type crude oil demulsifier, 20 to 45% of positive oil head PFA type rosin modified phenol-amine crude oil demulsifier, and 1 to 5% of functional negative ion biological surface activating agent (rhamnose ester); the three types of demulsifier and the biological surfactant are uniformly mixed according to a certain ratio, so as to obtain the demulsifier provided by the invention. The ultra-thick oil demulsifier has the characteristics that the structure is diversified, the mutual compounding property and synergistic property are very strong, and the ultra-thick oil demulsifier is applied into ultra-thick oil of Shuguang oil production plant in Liaohe oil field; the demulsifying efficiency is high, the stability is good, the water and oil are clear after demulsifying, the oil and water interface is clear and smooth, and the like.
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Description

technical field

[0001] The invention relates to the technical field of oil field chemical preparations, in particular to a super heavy oil demulsifier and a preparation method thereof. Background technique

[0002] Crude oil (CRUDE OIL) is the main energy source in the world today, and it occupies a very important position in the national economy, so it is also called "black gold". According to different standards, the classification of crude oil is also different. Among them, there is a kind of heavy oil with high viscosity and high density. According to the Chinese heavy oil classification standard proposed by Chief Engineer Liu Wenwen, there is a kind of super heavy oil (natural asphalt) whose dynamic viscosity (50 ℃)≥50000mPa.s, density (20℃)>0.98g / cm 3 .

[0003] Studies by Strausz et al. have shown that asphaltene molecules contain 4-10 fused aromatic systems, and the aromatic rings are linked with rich aliphatic structural units. The three-dimensional spatial st...

Claims

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