Process for preparing emulsion breaker of sulfated oil

An oil demulsifier and demulsifier technology, applied in the field of preparation of high-efficiency demulsifiers, can solve the problems of acidified oil not up to standard and poor effect

Inactive Publication Date: 2006-04-05
天津市慧珍科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, the use of a single demulsifier is often not effective. For example, the use of general-purpose demulsifiers such as SP-169, AE8031, AE1910, AP212, BP-121, AR2, HD-3, TA1031 and other demulsifiers cannot reach the acidified oil in Bohai Oilfield. standard

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0023] Embodiment: a kind of preparation method of acidified oil demulsifier is characterized in that it is compounded with three kinds of demulsifiers A, B, C, and said three kinds of demulsifiers A, B, C are made of ethylene oxide It is a block polymer formed by reacting alkanes, propylene oxide, diisocyanate and different initiators, among which: A demulsifier is synthesized by reacting propylene glycol and propylene oxide to synthesize A demulsifier oil head, and then combine with ethylene oxide and The demulsifier B is formed by the reaction of propylene oxide; the demulsifier B is formed by the reaction of high-carbon alcohol and propylene oxide, and then polymerized with ethylene oxide and propylene oxide; the demulsifier C is demulsifier B is the base material and then added diisocyanate to polymerize.

[0024] The synthetic technique of above-mentioned A demulsifier is:

[0025] ① Synthesis of A demulsifier oil head: put 50kg propylene glycol and 3kgKOH into the reac...

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PUM

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Abstract

The preparation method of demulsifier for acidified oil comprises three demulsifers of A, B, and C with weight proportion as 0.5-2:0.5-2:1-5, all belonged to block polymer reacted by ethylene oxide, propylene oxide and diisocyanate with different initiators. With this invention, at 60-70Deg, it is rapid to dewater, and the water content of crude oil is less than 0.5%.

Description

(1) Technical field: [0001] The invention relates to a production method of an oil field demulsifier, in particular to a preparation method of a high-efficiency demulsifier for acidified oil demulsifiers. (two) background technology: [0002] The use of conventional inorganic acids (such as hydrochloric acid) to dissolve rocks and expand oil and gas flow channels can increase oil and gas production. In recent years, in order to adapt to the development of acidizing engineering and improve the chemical effect, in addition to conventional acid solutions, various gel systems, emulsified acid systems and foam acid systems have been applied and popularized, and the technology and effect of acidizing operations have been raised to a new stage. This type of technology has become an important technical measure and development method for increasing oil well production in carbonate reservoirs and some sandstone reservoirs, removing various blockages in oil and water wells, expanding o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/00
Inventor 魏秀珍武长安
Owner 天津市慧珍科技有限公司
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