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Embedded-type chemical wax removing ball as well as preparation method and application thereof

A wax removal ball and chemical technology, applied in the direction of chemical instruments and methods, mechanical equipment, drilling compositions, etc., can solve the problems of pipe jamming, manpower, material resources, financial resources waste, rubber balls without wax-proof effect, etc., to achieve Reduce dosing cost, reduce dosing cycle and improve wax removal effect

Inactive Publication Date: 2019-06-11
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For oil field pipeline wax removal and prevention, rubber wax removal balls are mainly used. The rubber balls collide with the deposited wax to make the deposited wax fall off the pipe wall. , waste of material and financial resources, and the rubber wax removal ball has no solubility, which is easy to cause pipe jamming. When pipe jamming occurs, it can only be solved by hot washing, thereby increasing pipeline maintenance costs

Method used

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  • Embedded-type chemical wax removing ball as well as preparation method and application thereof
  • Embedded-type chemical wax removing ball as well as preparation method and application thereof
  • Embedded-type chemical wax removing ball as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] An embedded chemical wax removal ball and a preparation method thereof, in terms of parts by mass, its raw material components and dosage are as follows:

[0042] 40 parts of EVA; 40 parts of sodium stearate; 8 parts of sodium benzoate; 7 parts of sodium laurate; 4.7 parts of gemini surfactant 1,4-butane sultone; 0.3 parts of coloring agent.

[0043] Preparation Process

[0044] Take a certain quality of medicine according to the formula, dissolve sodium stearate, sodium benzoate, gemini surfactant, and sodium laurate in absolute ethanol, mix evenly, prepare solid particles with a diameter of 38 mm, and dry. Heat to 75°C to melt the EVA, mix it evenly with the colorant, adhere to the surface of the prepared solid particles, and use a stainless steel spherical mold for cooling and molding. Evenly punch 14 holes with a diameter of 3 mm and a depth of 3.5 mm on the surface of the prepared wax removal ball to penetrate the EVA shell. After the pitching test, the active co...

Embodiment 2

[0046] In parts by mass, 50 parts of EVA; 35 parts of sodium stearate; 3 parts of sodium benzoate; 7 parts of sodium laurate; 4.7 parts of gemini surfactant 1,4-butane sultone; 0.3 parts of coloring agent.

[0047] Preparation Process

[0048]Take a certain quality of medicine according to the formula, dissolve sodium stearate, sodium benzoate, gemini surfactant, and sodium laurate in absolute ethanol, mix evenly, prepare solid particles with a diameter of 40 mm, and dry. The EVA is melted at 78°C, mixed evenly with the coloring agent, attached to the surface of the prepared solid particles, and cooled and formed using a stainless steel spherical mold. Evenly drill 12 holes with a diameter of 2 mm and a depth of 2.5 mm on the surface of the prepared wax removal ball to penetrate the EVA shell. After the pitching test, the active components were completely dissolved, and the EVA shell was cleaned, and sodium stearate, sodium benzoate, gemini surfactant, and sodium laurate were...

Embodiment 3

[0050] 45 parts of EVA; 37 parts of sodium stearate; 5 parts of sodium benzoate; 7 parts of sodium laurate; 4.7 parts of gemini surfactant 1,4-butane sultone; 0.3 parts of coloring agent.

[0051] Preparation Process

[0052] Take a certain quality of medicine according to the formula, dissolve sodium stearate, sodium benzoate, gemini surfactant, and sodium laurate in absolute ethanol, mix evenly, prepare solid particles with a diameter of 39 mm, and dry. The EVA is melted at 80°C, mixed evenly with the coloring agent, attached to the surface of the prepared solid particles, and cooled and formed using a stainless steel spherical mold. Evenly punch 16 holes with a diameter of 4 mm and a depth of 3 mm on the surface of the prepared wax removal ball to penetrate the EVA shell. After the pitching test, the active components were completely dissolved, and the EVA shell was cleaned, and sodium stearate, sodium benzoate, gemini surfactant, and sodium laurate were weighed according ...

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Abstract

The invention provides an embedded-type chemical wax removing ball as well as a preparation method and application thereof. The wax removing ball comprises an inner core prepared from an anti-wax agent and an outer shell prepared from EVA, and the outer shell is provided with a plurality of through holes in a radial direction; the anti-wax agent comprises sodium stearate, sodium benzoate, a geminisurfactant and sodium laurate; and the wax removing ball comprises the following components, in parts by mass: 40-50 parts of the EVA, 35-40 parts of the sodium stearate, 3-8 parts of a preservative,5-8 parts of the sodium laurate and 4-5 parts of the gemini surfactant. According to the wax removing ball provided by the invention, the EVA outer shell has the mainly effects of increasing the mechanical properties of the wax removing ball, and has a physical wax removing effect; the outer shell of the wax removing ball is provided with the plurality of through holes in the radial direction, the through holes are only channels of connection between the outside and the anti-wax agent in the wax removing ball, and when the wax removing ball flows in oil transmission pipelines, the anti-wax agent is released through the pipelines to play a chemical anti-wax effect.

Description

technical field [0001] The invention belongs to the field of crude oil transportation, and relates to an embedded chemical wax removal ball and a preparation method and application thereof. Background technique [0002] Due to the relatively high wax content of crude oil, major oil fields have developed different wax removal and prevention methods for different wax deposition rules and wax deposition processes. Currently, more mature wax removal methods include mechanical wax removal, heating wax removal, surface Treatment of wax control, physical field wax control, microbial wax removal and chemical wax removal and six types of technologies. [0003] For oil field pipeline wax removal and prevention, rubber wax removal balls are mainly used. The rubber balls collide with the deposited wax to make the deposited wax fall off the pipe wall. , waste of material resources and financial resources, and the rubber wax removal ball has no solubility, which is easy to cause pipe jam...

Claims

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Application Information

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IPC IPC(8): C09K8/524F17D1/16
Inventor 燕永利宋兆洋牛梦龙贺炳成寇卫伟豆龙龙
Owner XI'AN PETROLEUM UNIVERSITY
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