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Autolytic composite material with anticorrosion and descaling functions and preparation method of autolytic composite material

A composite material and self-dissolving technology, applied in the field of materials, can solve the problems of complex corrosion and scale inhibitor filling process, low corrosion and scale inhibition efficiency, cumbersome management, etc., achieving significant economic and social benefits, and convenient on-site use. , the effect of simple preparation process

Inactive Publication Date: 2020-08-25
南京市美泰鑫能源材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to propose a self-dissolving composite material with anti-corrosion and scale-removing functions and its The preparation method simplifies the filling process, improves the corrosion inhibition efficiency, and effectively removes the scale layer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The self-dissolving composite material of the present embodiment is made of 0.5kg sodium hydroxide, 0.5kg potassium hydroxide, 3.1kg calcium hydroxide, 0.41kg carboxymethyl cellulose, 1# magnesium alloy tube (inner diameter 20mm, wall thickness 1mm, length 1000mm ), 2# magnesium alloy cylinder (inner diameter 38mm, wall thickness 2mm, length 1002mm), 3# magnesium alloy cylinder (inner diameter 58mm, wall thickness 1mm, length 1004mm).

[0020] (1) 0.5kg sodium hydroxide, 0.5kg potassium hydroxide, 3.1kg calcium hydroxide, 0.41kg carboxymethyl cellulose are poured in the mixer, start the mixer and mix for 5 minutes to obtain the mixture;

[0021] (2) Use a pneumatic conveying device to inject the mixed solid alkali into the extruder, extrude a solid alkali rod with a diameter of 20mm and a length of 1000mm, and extrude a 1# solid alkali cylinder with an inner diameter of 22mm, a thickness of 8mm, and a length of 1000mm Root, extrude a 2# solid alkali cylinder with an inn...

Embodiment 2

[0024] The self-dissolving composite material of this embodiment consists of 4.88kg sulfamic acid, 0.5kg starch, 0.098kg solid corrosion inhibitor Lan826, 1# magnesium alloy cylinder (inner diameter 20mm, wall thickness 1mm, length 1000mm), 2# magnesium alloy cylinder ( Inner diameter 38mm, wall thickness 2mm, length 1002mm), 3# magnesium alloy cylinder (inner diameter 58mm, wall thickness 1mm, length 1004mm).

[0025] (1) Pour 4.88kg sulfamic acid, 0.5kg starch, and 0.098kg solid corrosion inhibitor Lan826 into the mixer, start the mixer and mix for 10 minutes to obtain the mixture;

[0026] (2) Use a pneumatic conveying device to inject the mixed solid acid into the extruder, extrude a solid acid rod with a diameter of 20mm and a length of 1000mm, and extrude a 1# solid acid cylinder with an inner diameter of 22mm, a thickness of 8mm, and a length of 1000mm Root, extrude a 2# solid acid cylinder with an inner diameter of 42mm, a thickness of 8mm, and a length of 1000mm;

[...

Embodiment 3

[0029] The self-dissolving composite material of the present embodiment is made of 0.3kg sodium hydroxide, 0.3kg potassium hydroxide, 2.22kg calcium hydroxide, 0.3kg hydroxymethyl cellulose, 1.5kg sulfamic acid, 0.15kg polyvinyl alcohol, 0.03kg solid Corrosion inhibitor Lan826, 1# magnesium alloy cylinder (inner diameter 20mm, wall thickness 1mm, length 1000mm), 2# magnesium alloy cylinder (inner diameter 38mm, wall thickness 2mm, length 1002mm), 3# magnesium alloy cylinder (inner diameter 58mm, wall thickness 1mm, length 1004mm).

[0030] (1) 0.3kg sodium hydroxide, 0.3kg potassium hydroxide, 2.22kg calcium hydroxide, 0.3kg hydroxymethyl cellulose are poured into the mixer, start the mixer and mix for 5 minutes to obtain the mixture;

[0031] (2) Inject the mixed solid alkali into the extruder with a pneumatic conveying device, extrude a solid alkali rod with a diameter of 20mm and a length of 1000mm, and extrude a solid alkali cylinder with an inner diameter of 42mm, a thick...

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Abstract

The invention relates to an autolytic composite material with anticorrosion and descaling functions and a preparation method thereof, and belongs to the technical field of materials. The autolytic composite material comprises a solid alkali rod / acid rod placed in an autolytic layer, wherein the solid alkali rod / acid rod is prepared from solid alkali / solid acid, a solid corrosion inhibitor and a water-soluble binder. The raw materials of the autolytic composite material are wide in source, the autolytic composite material is simple in preparation process, low in cost and convenient to use on site, the purposes of corrosion prevention and scale removal are achieved by alternately releasing hydroxyl ions and hydrogen ions, the problems of corrosion and scale formation of underground tubular columns and ground gathering and transportation pipelines can be effectively solved, the oil and gas production cost is reduced, and the autolytic composite material has remarkable economic and socialbenefits.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a self-dissolving composite material with anti-corrosion and descaling functions and a preparation method thereof, belonging to the field of material technology. Background technique [0002] At present, most oil fields in my country have entered the stage of secondary or tertiary oil recovery. Although secondary or tertiary oil recovery can increase the oil production of oil wells, it will also bring about the problem that the water content of oil wells will gradually increase. The water content has exceeded 90%, and high water content will inevitably lead to serious corrosion and scaling problems in downhole pipe strings and surface gathering and transportation pipelines. Injecting corrosion inhibitors and scale inhibitors into oil wells can effectively alleviate the problem of corrosion and scaling. The output liquid is washed away, and the effect of cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/54C09K8/52
CPCC09K8/54C09K8/52
Inventor 于连旭
Owner 南京市美泰鑫能源材料科技有限公司
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