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Normal temperature catalytic chain breakage-based heavy oil and asphalt colloidal deblocking and viscosity-reducing agent and preparation method thereof

A technology of viscosity reducer and catalyst, applied in the field of heavy oil viscosity reducer catalyzing chain scission at room temperature, can solve the problems of high use temperature, organic ligand dispersion, poor penetration and salt resistance, etc., and achieves good permeability and improved The effect of efficiency

Inactive Publication Date: 2019-10-22
新疆肯迪能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a thick oil bitumen colloid deblocking viscosity-reducing agent based on catalytic chain breaking at room temperature, which overcomes the high operating temperature of the hydrothermal catalytic cracking viscosity reduction technology, the dispersion of organic ligands, poor penetration and salt resistance, etc. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Under the condition of stirring at room temperature, add 55 parts of kerosene and 10 parts of TX-7 to the reaction kettle in turn, stir for 20 minutes, then add 25 parts of ethylene glycol monobutyl ether into the reaction kettle, continue stirring for 30 minutes, and finally add Add 10 parts of tert-butyl bromide and stir for 30 minutes to obtain the finished product of normal temperature catalytic chain scission heavy oil viscosity reducer.

[0027] Prepare a 2% solution of the catalytic chain scission viscosity reducer at room temperature, take 50ml of the viscosity reducer solution, add it to 100ml of heavy oil with a viscosity of 48900mPa. s, the viscosity reduction rate is 99.34%, and the viscosity reduction effect is excellent.

Embodiment 2

[0029] Under the condition of stirring at room temperature, add 50 parts of white oil and 10 parts of OP-10 to the reaction kettle in turn, stir for 20 minutes, then add 32 parts of ethylene glycol dibutyl ether into the reaction kettle, continue stirring for 30 minutes, and finally add Add 8 parts of tert-butyl chloride to the mixture, and stir for 30 minutes to obtain the finished product of normal temperature catalytic chain scission heavy oil viscosity reducer.

[0030] Prepare a 2% solution of the catalytic chain scission viscosity reducer at room temperature, take 45ml of the viscosity reducer solution, add it to 100ml of heavy oil with a viscosity of 48900mPa. s, the viscosity reduction rate is 98.61%, and the viscosity reduction effect is good.

Embodiment 3

[0032] Under the condition of stirring at room temperature, add 62 parts of toluene and 8 parts of sodium fatty alcohol polyoxyethylene ether carboxylate to the reaction kettle in turn, stir for 20 minutes, then add 25 parts of ethylene glycol dibutyl ether into the reaction kettle, and continue stirring for 30 minutes , and finally add 5 parts of methyl bromide into the reaction kettle, and stir for 30 minutes to obtain the finished product of normal temperature catalytic chain scission heavy oil viscosity reducer.

[0033] Prepare a 2% solution of the catalytic chain scission viscosity reducer at room temperature, take 60ml of the viscosity reducer solution, add it to 100ml of heavy oil with a viscosity of 48900mPa. s, the viscosity reduction rate is 97.99%, and the viscosity reduction effect is good.

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Abstract

The invention discloses a normal temperature catalytic chain breakage-based heavy oil and asphalt colloidal deblocking and viscosity-reducing agent. The normal temperature catalytic chain breakage-based heavy oil and asphalt colloidal deblocking and viscosity-reducing agent comprises 30-80 wt% of an organic solvent, 5-30 wt% of a surfactant, 20-50 wt% of a mutual solvent and 5-20 wt% of a catalyst. The colloidal deblocking and viscosity-reducing agent can form carbocations at normal temperature to achieve catalytic chain breakage of crude oil without steam heating; and the carbocations play aleading role in catalytic chain breakage, and the mineralization degree does not affect the production of the carbocations, so the catalytic viscosity reduction system is suitable for catalytic chainbreakage viscosity reduction of high-salinity reservoirs. The addition of the mutual solvent makes the carbocations fully contacted with the crude oil and have a good permeability, so the catalytic chain breakage efficiency can be improved.

Description

technical field [0001] The present invention relates to a kind of crude oil colloidal asphalt catalytic chain scission modification based on normal temperature, especially a kind of normal temperature catalytic chain scission thick oil viscosity reducer, belongs to the field of heavy oil viscosity reducer, this system is widely applicable to heavy oil Mining viscosity reduction process. Background technique [0002] With the continuous development of the global economy, energy consumption continues to grow. As an important part of global petroleum resources, heavy oil has resource potential several times higher than conventional petroleum resources. Although the current oil price is low and the global petroleum industry has entered a cold winter, with With the gradual reduction of conventional light oil resources, heavy oil resources will still play a pivotal role in the future world energy supply. [0003] The core of heavy oil development is to achieve a large viscosity r...

Claims

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Application Information

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IPC IPC(8): C09K8/58
CPCC09K8/58
Inventor 危建新杨震金建国龚知远龚玉斌高连涛徐珊贺玉楚
Owner 新疆肯迪能源科技有限公司
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