Unlock instant, AI-driven research and patent intelligence for your innovation.

Composite crude oil demulsifying agent

A crude oil demulsifier, technology in parts by weight, applied in the direction of chemical dehydration/demulsification, etc., to achieve the effects of good demulsification performance, excellent wetting performance, good surface performance and penetration ability

Active Publication Date: 2013-11-06
石家庄卫科生物科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for a single demulsifier to fully meet these requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A composite crude oil demulsifier of the present invention is composed of the following materials:

[0016] Polyoxypropylene polyoxyethylene stearyl alcohol ether 30kg, propylene glycol polyoxypropylene polyoxyethylene ether 20kg, sodium lauryl sulfate 10kg, ammonium chloride 15kg, polyether modified trisiloxane 10kg, methanol 8kg

Embodiment 2

[0018] A composite crude oil demulsifier of the present invention is composed of the following materials:

[0019] Polyoxypropylene polyoxyethylene stearyl alcohol ether 25kg, propylene glycol polyoxypropylene polyoxyethylene ether 15kg, sodium lauryl sulfate 7kg, ammonium chloride 8kg, polyether modified trisiloxane 8kg, methanol 5kg

Embodiment 3

[0021] A composite crude oil demulsifier of the present invention is composed of the following materials:

[0022] Polyoxypropylene polyoxyethylene stearyl alcohol ether 35kg, propylene glycol polyoxypropylene polyoxyethylene ether 25kg, sodium lauryl sulfate 15kg, ammonium chloride 20kg, polyether modified trisiloxane 16kg, methanol 10kg

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a composite crude oil demulsifying agent, which comprises the following materials in parts by weight: 24-35 parts of polyoxypropylene polyoxyethylene octadecyl alcohol, 15-25 parts of propanediol polyoxypropylene polyoxyethylene ether, 7-15 parts of sodium lauryl sulfate, 8-20 parts of ammonium chloride, 8-16 parts of polyether-modified trisiloxane, and 5-10 parts of methanol. The composite crude oil demulsifying agent provided by the invention has good surface activity, wetting property and enough flocculation and agglutination capacity, can rapidly reach the oil-water interface to replace natural interfacial active substances to form a new unstable oil-water interfacial film, and has good performance of demulsifying crude oil emulsion. Also, the composite crude oil demulsifying agent saves time, manpower and material resources, and can be widely applied in crude oil extraction, crude oil refining and other fields.

Description

technical field [0001] The invention relates to a composite crude oil demulsifier, which belongs to the technical field of oilfield chemical additives. Background technique [0002] With the development of the world's petroleum industry, the amount of oil production is increasing day by day, resulting in an increasing amount of crude oil emulsion. Especially after water injection enhanced oil recovery, the water content of crude oil increases significantly. Most of the crude oil is mined in the form of oil-water emulsion. . The crude oil produced liquid contains a large amount of water and inorganic salts, which brings great difficulties to oil and gas gathering and transportation and crude oil refining. Therefore, dehydration and desalination must be carried out. [0003] Demulsifier is a surface active substance, which can destroy the emulsified liquid structure, so as to achieve the purpose of separating the phases in the emulsified liquid. Crude oil demulsification is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G33/04
Inventor 吴海霞王奎涛高金龙鲁楠邢士辉夏立雷罗洋
Owner 石家庄卫科生物科技有限公司