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Cleaning paraffin remover for oil field and preparation method of cleaning paraffin remover

A wax remover and cleaning technology, applied in chemical instruments and methods, drilling compositions and other directions, can solve the problems of low oil production efficiency, high production cost, and many well cleaning times of oil wells, reducing the number of well cleaning, The effect of low production cost and extended well cleaning cycle

Inactive Publication Date: 2021-11-05
陕西延长石油油田化学科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cleaning wax remover for oil fields, which solves the problems of frequent well washing, low oil production efficiency and high oil production cost in the oil production process.
[0004] Another object of the present invention is to provide a preparation method of a cleaning wax remover for oil fields, which solves the problems of high production cost and environmental pollution in the prior art

Method used

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  • Cleaning paraffin remover for oil field and preparation method of cleaning paraffin remover

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present invention provides a kind of preparation method of cleaning wax remover for oil field, specifically implement according to the following steps:

[0030] Step 1, weigh the following components respectively according to mass percentage: OP-10 is 70kg, cetyltrimethylammonium chloride is 80kg, ethanol is 120kg, sodium salicylate is 30kg, water is 700kg, the above groups The sum of the weight percentages of the parts is 100%;

[0031] Step 2, adding 70kg of OP-10 weighed in step 1 into 500kg of water and stirring for 40min to dissolve the OP-10 to obtain an OP-10 solution;

[0032] Step 3, add the 120kg ethanol weighed in step 1 into the remaining 200kg water to obtain an ethanol solution, add the 80kg cetyltrimethylammonium chloride weighed in step 1 into the solution, stir for 20min, and obtain hexadecyl trimethyl ammonium chloride Trimethylammonium chloride solution;

[0033] Step 4, add the OP-10 solution obtained in step 2 to the cetyltrimethylammonium chl...

Embodiment 2

[0035] The present invention provides a kind of preparation method of cleaning wax remover for oil field, specifically implement according to the following steps:

[0036] Step 1, weigh the following components respectively according to mass percentage: OP-10 is 100kg, cetyltrimethylammonium chloride is 60kg, ethanol is 100kg, sodium salicylate is 20kg, water is 720kg, the above groups The sum of the weight percentages of the parts is 100%;

[0037] Step 2, adding 100kg of OP-10 weighed in step 1 into 500kg of water and stirring for 40min to dissolve the OP-10 to obtain an OP-10 solution;

[0038] Step 3, add the 100kg ethanol weighed in step 1 into the remaining 220kg water to obtain an ethanol solution, add the 60kg cetyltrimethylammonium chloride weighed in step 1 into the solution, stir for 15min, and obtain hexadecyl trimethyl ammonium chloride Trimethylammonium chloride solution;

[0039] Step 4, add the OP-10 solution obtained in step 2 to the cetyltrimethylammonium c...

Embodiment 3

[0041] The present invention provides a kind of preparation method of cleaning wax remover for oil field, specifically implement according to the following steps:

[0042] Step 1, take the following components respectively according to the mass percentage: OP-10 is 50kg, cetyltrimethylammonium chloride is 150kg, ethanol is 150kg, sodium salicylate is 40kg, water is 610kg, the above groups The sum of the weight percentages of the parts is 100%;

[0043] Step 2, adding 50kg of OP-10 weighed in step 1 into 500kg of water and stirring for 40min to dissolve the OP-10 to obtain an OP-10 solution;

[0044] Step 3, add the 150kg ethanol weighed in step 1 to the remaining 110kg water to obtain an ethanol solution, add the 150kg cetyltrimethylammonium chloride weighed in step 1 to the solution, stir for 20min, and obtain cetyl trimethyl ammonium chloride Trimethylammonium chloride solution;

[0045] Step 4, add the OP-10 solution obtained in step 2 to the cetyltrimethylammonium chlori...

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Abstract

The invention discloses a cleaning paraffin remover for an oil field and a preparation method of the cleaning paraffin remover. The cleaning paraffin remover consists of the following components in percentage by mass: 5-10% of OP-10, 3-15% of hexadecyl trimethyl ammonium chloride, 10-15% of ethanol, 2-5% of sodium salicylate and 61-80% of water, and the sum of the weight percentages of the components is 100%. The problems that in the oil extraction process, the well washing frequency is large, the oil production efficiency of an oil well is low, and the oil extraction cost is high are solved.

Description

technical field [0001] The invention belongs to the technical field of oil field fine chemicals, relates to a cleaning and wax removing agent for oil fields, and also relates to a preparation method of the cleaning and wax removing agent for oil fields. Background technique [0002] Yanchang Oilfield is located in the northwest of my country, and the temperature is lower than the freezing point of crude oil for a long time. Every year when the temperature is low, it is necessary to use a large amount of wax remover, pour point depressant, and drag reducer in the process of crude oil extraction and gathering. Chemical additives to improve the fluidity of crude oil. Most of the oil wells in Yanchang Oilfield suffer from severe wax deposition in winter, which seriously affects the oil recovery and production increase of the oil field. In order to increase production, it is necessary to continuously carry out wax removal and anti-wax measures. The operation frequency is high and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/524
CPCC09K8/524
Inventor 向礼勇王逵张保利邱哓翠樊博强刘磊樊亮亮郭强
Owner 陕西延长石油油田化学科技有限责任公司
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