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Oil-base paraffin remover and preparation method thereof

An oil-based wax remover technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of unsafe use, flammability, high toxicity of oil-based wax remover, etc. The effect of high flash point and fast wax dissolution rate

Inactive Publication Date: 2018-05-04
克拉玛依新科澳石油天然气技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an oil-based wax remover and a preparation method thereof, which overcomes the deficiencies of the prior art and can effectively solve the problems of the existing oil-based wax remover with high toxicity, flammability, unsatisfactory wax-dissolving effect, and unsatisfactory use. safety issue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: The oil-based wax remover, raw materials include water-soluble imidazoline, triethanolamine, dodecylbenzenesulfonic acid, kerosene and penetrating agent, and the oil-based wax remover obtains according to the following steps: the first step, Under normal temperature and pressure, uniformly mix water-soluble imidazoline and triethanolamine to obtain a mixed solution, wherein the weight ratio of water-soluble imidazoline, triethanolamine and dodecylbenzenesulfonic acid is 1:1.2:2.4; the second In the first step, dodecylbenzenesulfonic acid is added into the mixed solution to react, and the stirring is continued until the reaction is completed to obtain a reaction product; in the third step, the reaction product, kerosene and penetrating agent are mixed to obtain an oil-based wax remover, wherein, 93 to 96 parts of kerosene (parts by weight) and 1 to 2 parts (parts by weight) of penetrating agent are added to the reaction product of 3 to 5 parts by weight.

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Embodiment 2

[0021] Embodiment 2: the oil-based wax remover, raw materials include water-soluble imidazoline, triethanolamine, dodecylbenzenesulfonic acid, kerosene and penetrating agent, the oil-based wax remover is obtained according to the following steps: the first step, Under normal temperature and pressure, uniformly mix water-soluble imidazoline and triethanolamine to obtain a mixed solution, wherein the weight ratio of water-soluble imidazoline, triethanolamine and dodecylbenzenesulfonic acid is 1:1.2:2.4; the second In the first step, dodecylbenzenesulfonic acid is added into the mixed solution to react, and the stirring is continued until the reaction is completed to obtain a reaction product; in the third step, the reaction product, kerosene and penetrating agent are mixed to obtain an oil-based wax remover, wherein, For every 3 or 5 parts by weight of the reaction product, 93 or 96 parts of kerosene and 1 or 2 parts of penetrating agent are added.

Embodiment 3

[0022] Embodiment 3: As an optimization of the above embodiment, the penetrating agent is alkylphenol polyoxyethylene-polyoxypropylene alcohol ether.

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Abstract

The invention relates to the technical field of preparation of oil field chemical paraffin removers and particularly relates to an oil-base paraffin remover and preparation method thereof. The oil-base paraffin remover contains the following raw materials: water-soluble imidazoline, triethanolamine, dodecylbenzene sulfonic acid, kerosene and a penetrating agent. The oil-base paraffin remover is prepared by the following steps: (1) uniformly mixing water-soluble imidazoline with triethanolamine at the normal temperature and pressure, so as to obtain mixed liquid; (2) adding dodecylbenzene sulfonic acid into the mixed liquid to react, and continuously stirring until the reaction is finished, so as to obtain a reaction product; and (3) mixing the reaction product with the kerosene and the penetrating agent, so as to obtain the oil-base paraffin remover. According to the oil-base paraffin remover and preparation method, the problems that an existing oil-base paraffin remover is high in toxicity, inflammable and unsafe to use and does not have an ideal paraffin dissolving effect can be effectively solved; and the oil-base paraffin remover has the advantages of high paraffin dissolving speed, flashing point and security coefficient and is drug-free and can be widely applied to paraffin removal techniques for oil extraction of blowing wells.

Description

technical field [0001] The invention relates to the technical field of preparation of an oilfield chemical wax remover, and relates to an oil-based wax remover and a preparation method thereof. Background technique [0002] Because crude oil contains a large amount of wax and colloidal asphaltenes, the wax and colloidal asphaltenes in crude oil will be precipitated as the temperature and pressure change during the crude oil extraction process, resulting in different degrees of wax deposition in oil wells. The stuck pump accident caused great economic losses, especially in the wax removal of self-flowing wells. At present, the wax removal of self-flowing wells is mainly based on mechanical wax removal, hot nitrogen flushing, running into coiled tubing, etc., which cannot achieve good results. There are many wax removal methods commonly used in existing oilfields, among which chemical wax removal is the main method. Chemical wax removal is simple and effective, and the cost i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/524
CPCC09K8/524
Inventor 窦军丛日凯冯桂荣高继红李建平邵洋洋
Owner 克拉玛依新科澳石油天然气技术股份有限公司