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Oil-soluble wax removal agent

A wax remover and oil-soluble technology, which is applied in the direction of detergent composition solvent, surface active detergent composition, detergent compounding agent, etc., can solve the problem of slow effect, achieve high wax dissolution rate and promote wax dissolution effect Effect

Inactive Publication Date: 2016-11-09
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-based wax remover has the advantages of safe use and high density, but it also has the problem of slow effect; oil-based wax remover has a fast wax melting rate and obvious effect, but its low flash point and low density seriously restrict its wide application; emulsion The type wax remover is generally an oil-in-water emulsion, and the effect of wax removal is better than that of water-based wax remover, but it is required not to break the emulsion during transportation and storage, and to break the emulsion quickly after the wax removal is completed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The present embodiment prepares wax remover according to the following scheme: with 65g100 # Aromatic hydrocarbon solvent and 30g of biodiesel were added into the mixer, stirred at 1000r / min for 2min, then 5g of sodium di-sec-octyl maleate sulfonate was added, and stirred for 5min to obtain the oil-soluble wax remover.

[0011] After testing, the wax remover product has a specific gravity of 0.940, a flash point ≥ 50°C, and a wax melting rate of 0.020g / min, meeting the requirements of the wax remover technical standard SY / T 6300-2009.

Embodiment 2

[0013] The present embodiment prepares wax remover according to the following scheme: with 70g100 # Aromatic hydrocarbon solvent and 25g of biodiesel were added to the mixer, stirred at 1000r / min for 2min, then 5g of sodium di-sec-octyl maleate sulfonate was added, and stirred for 5min to obtain the oil-soluble wax remover.

[0014] After testing, the wax remover product has a specific gravity of 0.928, a flash point ≥ 50°C, and a wax melting rate of 0.022g / min, meeting the requirements of the wax remover technical standard SY / T 6300-2009.

Embodiment 3

[0016] The present embodiment prepares wax remover according to the following scheme: with 75g100 # Aromatic hydrocarbon solvent and 20g of biodiesel were added into the mixer, stirred at 1000r / min for 2min, then 5g of sodium di-sec-octyl maleate sulfonate was added, and stirred for 5min to obtain the oil-soluble wax remover.

[0017] After testing, the wax remover product has a specific gravity of 0.920, a flash point ≥ 50°C, and a wax melting rate of 0.026g / min, meeting the requirements of the wax remover technical standard SY / T 6300-2009.

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Abstract

The invention provides an oil-soluble wax removal agent. The oil-soluble wax removal agent comprises, by mass, 65-75% of an aromatic hydrocarbon solvent 100#, 20-30% of biodiesel and 5% of sodium diethylhexyl sulfosuccinate. The oil-soluble wax removal agent is prepared from easily available raw materials, has high product specific gravity and a high flash point, does not contain S and Cl and is conducive to transport, storage and on-site safe construction. The oil-soluble wax removal agent has a wax dissolution rate of 0.020-0.026g / min at a temperature of 45 DEG C, wherein the wax dissolution rate is obviously higher than the standard SY / T 6300-2009 lowest value of 0.016g / min, and has the highest wax dissolution rate based on use safety.

Description

Technical field: [0001] The invention relates to an oil-soluble wax remover, which belongs to the field of oilfield chemical industry. Background technique: [0002] Waxing in oil wells is a common phenomenon in oilfield development, especially in the process of heavy oil production, where the wax content is high. During the production process, as the pressure and temperature decrease, the wax contained in crude oil will gradually precipitate and adhere to the bottom of the well. , and even block the oil-producing layer, seriously affecting the production of oil wells. [0003] At present, the commonly used wax removers include water-based wax remover, oil-based wax remover and emulsion wax remover. Water-based wax remover has the advantages of safe use and high density, but it also has the problem of slow effect; oil-based wax remover has a fast wax melting rate and obvious effect, but its low flash point and low density seriously restrict its wide application; emulsion T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D10/02
CPCC11D3/187C11D3/43C11D10/00C11D1/123
Inventor 张旋葛际江张贵才蒋平林杨
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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