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Thickened oil emulsification viscosity reduction-demulsification compound and preparation method thereof

A technology for emulsification and viscosity reduction and compounding agent, which is applied in chemical instruments and methods, chemical methods for dehydration/demulsification, drilling compositions, etc. The effect of simple preparation process and high input-output rate

Inactive Publication Date: 2014-08-20
KARAMAY XINRONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dilution method requires less investment and has a good drag reduction effect, but due to the limitation of reservoir conditions, only some areas can use the dilution method to reduce the viscosity; the modified viscosity reduction method is not suitable for the current situation of oilfield production in my country due to its complicated process and large investment. The viscosity reduction effect of the viscosity reducer is far inferior to that of emulsification viscosity reduction and other viscosity reduction processes

Method used

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  • Thickened oil emulsification viscosity reduction-demulsification compound and preparation method thereof
  • Thickened oil emulsification viscosity reduction-demulsification compound and preparation method thereof
  • Thickened oil emulsification viscosity reduction-demulsification compound and preparation method thereof

Examples

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Embodiment 1

[0028] Example 1, the thick oil emulsification viscosity-reducing-demulsification composite agent is made according to the following raw materials by weight: 86.5 to 69 parts of water, 5 to 15 parts of emulsifier, 5 to 10 parts of emulsion stabilizer, 0.5 to 1 part of the emulsion, 3 to 5 parts of the inorganic base; the emulsifier is compounded as the main emulsifier and the auxiliary emulsifier, and the weight ratio is 60 to 70 parts, 40 to 30 parts; The demulsifier is made of fluorocarbon surfactant, petroleum sulfonate or fluorocarbon surfactant, and petroleum carboxylate, and its weight ratio is 0.5 to 1.5 parts, 99.5 to 98.5 parts, and 0.5 parts to 1.5 parts, 99.5 to 98.5 parts.

Embodiment 2

[0029]Example 2, the thick oil emulsification viscosity-reducing-demulsification composite agent is made according to the following raw materials by weight: 86.5 parts or 69 parts of water, 5 parts or 15 parts of emulsifier, 5 parts or 10 parts of emulsion stabilizer, 0.5 parts or 1 part of emulsion, 3 parts or 5 parts of inorganic base; wherein the emulsifier is composed of main emulsifier and auxiliary emulsifier, and the weight ratio is 60 or 70 parts, 40 or 30 parts; The demulsifier is compounded by fluorocarbon surfactant, petroleum sulfonate or fluorocarbon surfactant, and petroleum carboxylate, and its weight ratio is 0.5 or 1.5, 99.5 or 98.5, and 0.5 Or 1.5, 99.5 or 98.5 parts.

Embodiment 3

[0030] Example 3, the heavy oil emulsification viscosity-reducing-demulsification composite agent is made according to the following raw materials by weight: 86.5 parts of water, 5 parts of emulsifier, 5 parts of emulsion stabilizer, 0.5 part of demulsifier, and 3 parts of inorganic base; Among them, the emulsifier is composed of main emulsifier and auxiliary emulsifier, and its weight ratio is 60 parts and 40 parts in turn; the demulsifier is made of fluorocarbon surfactant and petroleum sulfonate, and its weight parts Proportioning is 0.5 part, 99.5 part successively.

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Abstract

The invention relates to the technical field of thickened oil emulsification viscosity reduction and demulsification dehydration mining and discloses a thickened oil emulsification viscosity reduction-demulsification compound and a preparation method thereof. The thickened oil emulsification viscosity reduction-demulsification compound is prepared from 86.5-69 parts of water, 5-15 parts of an emulsifier, 5-10 parts of an emulsion stabilizing agent, 0.5-1 part of a de-emulsifier and 3-5 parts of an inorganic base. The thickened oil emulsification viscosity reduction-demulsification compound has the advantages that a thickened oil emulsification viscosity reduction ratio is in a range of 95-100%; a film is formed on the surface of a metal pipe wall so that the friction between thickened oil flowing in a shaft and a gathering and transportation pipe and the pipe wall is reduced; a static settling demulsification rate is in a range of 90-99% at a temperature of 80-90 DEG C; and processes are simple so that integration of reduction of viscosity of thickened oil in the shaft and demulsification dehydration before refining is realized. The thickened oil emulsification viscosity reduction-demulsification compound is mainly suitable for viscosity reduction of thickened oil having water content greater than or equal to 30% and viscosity less than 50000mPa.s at a temperature of room temperature to 100 DEG C in a shaft, and gathering and transportation of the thickened oil in a pipe.

Description

technical field [0001] The invention relates to the technical field of heavy oil emulsification viscosity reduction and demulsification dehydration mining, and relates to a heavy oil emulsification viscosity reduction-demulsification compound agent and a preparation method thereof. Background technique [0002] Heavy oil is difficult to extract because it is viscous and easy to solidify, so it is called "immobile oil field" and is recognized as a difficult problem in crude oil extraction around the world. The geological reserves of heavy oil resources in the world are 700 billion tons, and the proven geological reserves of heavy oil in our country are 15% to 20% of the total proven geological reserves of oil, about billions of tons; the exploitation of this part of heavy oil resources is very important Domestic oil supply is significant. Heavy oil is a complex mixture of multiple hydrocarbons rich in colloids and asphaltenes, characterized by high density, high viscosity an...

Claims

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Application Information

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IPC IPC(8): C09K8/584C10G33/04
CPCC09K8/584C09K2208/26C10G33/04
Inventor 吴洪特王茂仁赵喜爱
Owner KARAMAY XINRONG TECH
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