Environment-friendly efficient heavy oil viscosity reducer

A heavy oil viscosity reducer, an environmentally friendly technology, applied in the field of heavy oil viscosity reducer, can solve the problems of environmental protection, high energy consumption, environmental pollution, etc., and achieve excellent hydrophilic and lipophilic performance, excellent viscosity reducing performance Effect

Active Publication Date: 2021-02-09
山东奥士德石油技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, methods such as heating and viscosity reduction are mainly used in the exploitation of ultra-heavy oil, but the high energy consumption of heating and viscosity reduction will also bring certain environmental pollution, which cannot meet the needs of environmental protection

Method used

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  • Environment-friendly efficient heavy oil viscosity reducer
  • Environment-friendly efficient heavy oil viscosity reducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An environment-friendly high-efficiency heavy oil viscosity reducer, including the first polymer and compound additives;

[0033] The environment-friendly high-efficiency heavy oil viscosity reducer is made by the following method:

[0034] The first polymer and compounding additive are uniformly mixed according to the weight ratio of 0.1:3 to prepare the environment-friendly high-efficiency heavy oil viscosity reducer.

[0035] The first polymer is made by the following method:

[0036] Step S1, adding octadecyl methacrylate to 10% sodium hydroxide aqueous solution by mass fraction and washing until colorless, then washing with deionized water until neutral, filtering, and drying at 60°C for 20 hours to obtain refined octadecyl methacrylate Esters; heat 95% ethanol in a water bath until boiling, then add azobisisobutyronitrile and stir at a constant speed until dissolved, suction filter, cool and crystallize to obtain refined azobisisobutyronitrile;

[0037] Step S2, a...

Embodiment 2

[0043] An environment-friendly high-efficiency heavy oil viscosity reducer, including the first polymer and compound additives;

[0044] The environment-friendly high-efficiency heavy oil viscosity reducer is made by the following method:

[0045] The first polymer and compounding additive are uniformly mixed according to the weight ratio of 0.2:3 to prepare the environment-friendly high-efficiency heavy oil viscosity reducer.

[0046] The first polymer is made by the following method:

[0047] Step S1, adding octadecyl methacrylate to 8% sodium hydroxide aqueous solution by mass fraction and washing until colorless, then washing with deionized water until neutral, filtering, and drying at 60°C for 20 hours to obtain refined octadecyl methacrylate Esters; heat 95% ethanol in a water bath until boiling, then add azobisisobutyronitrile and stir at a constant speed until dissolved, suction filter, cool and crystallize to obtain refined azobisisobutyronitrile;

[0048] Step S2, ...

Embodiment 3

[0054] An environment-friendly high-efficiency heavy oil viscosity reducer, including the first polymer and compound additives;

[0055] The environment-friendly high-efficiency heavy oil viscosity reducer is made by the following method:

[0056] The first polymer and compounding additive are uniformly mixed according to the weight ratio of 0.4:3 to prepare the environment-friendly high-efficiency heavy oil viscosity reducer.

[0057] The first polymer is made by the following method:

[0058] Step S1, adding octadecyl methacrylate to 10% sodium hydroxide aqueous solution by mass fraction and washing until colorless, then washing with deionized water until neutral, filtering, and drying at 60°C for 20 hours to obtain refined octadecyl methacrylate Esters; heat 95% ethanol in a water bath until boiling, then add azobisisobutyronitrile and stir at a constant speed until dissolved, suction filter, cool and crystallize to obtain refined azobisisobutyronitrile;

[0059] Step S2,...

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Abstract

The invention belongs to the field of petroleum additives, and particularly discloses an environment-friendly efficient heavy oil viscosity reducer which comprises a first polymer and a composite additive, the environment-friendly high-efficiency heavy oil viscosity reducer is prepared by the following method: mixing butyl acrylate, styrene, toluene and other monomers, adding azodiisobutyronitrileas an initiator, adding sodium p-styrenesulfonate, and preparing a product C by an emulsion polymerization method, the product C being a butyl acrylate, styrene sodium and p-styrenesulfonate copolymer with high amphipathic property, and then uniformly mixing a product A and the product C to prepare a first polymer; uniformly mixing an auxiliary agent with a main agent to prepare a composite auxiliary agent; and uniformly mixing the first polymer and the composite additive to obtain the environment-friendly high-efficiency heavy oil viscosity reducer. The viscosity reducer has excellent viscosity reduction performance on thick oil.

Description

technical field [0001] The invention relates to a heavy oil viscosity reducer, in particular to an environment-friendly high-efficiency heavy oil viscosity reducer. Background technique [0002] The main difference between heavy oil and other ordinary thin oils is that it contains more colloids and asphaltene, which is also the main factor for the higher viscosity of heavy oil. Colloid and asphaltene molecules are the components with the largest relative molecular mass and the strongest polarity in heavy oil. Studies have found that asphaltene molecules exist in the form of a three-dimensional association network structure in crude oil, forming aggregates with a high degree of regularity. Colloid molecules are adsorbed on asphaltene aggregates to form a transition layer between asphaltene particles and liquid oil, so that asphaltene particles are suspended in the oil to form petroleum colloids. When the relative displacement occurs between crude oil molecules, a large inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/588C08F218/08C08F220/18C08F212/36C08F212/14C08F212/08
CPCC08F218/08C09K8/588C08F220/1804C08F220/1818C08F212/36C08F212/30C08F212/08
Inventor 王志高超崔伟托君丽张丁丁
Owner 山东奥士德石油技术有限公司
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