Material for making piston rubber-rup of slurry pump

A technology for piston cups and mud pumps, applied in the direction of pistons, cylindrical pistons, plungers, etc., can solve the problems of low cost, poor wear resistance, short service life, etc., and achieve not easy damage, good hardness and stiffness , long service life effect

Inactive Publication Date: 2003-08-27
焦学明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the short service life caused by the poor wear resistance of existing leather bowls, the invention provides a material fo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The present invention will be further described below:

[0007] A material for making mud pump piston cups, including natural rubber, accelerator DM, and accelerator D, characterized in that the ingredients and proportions are as follows in parts by weight, 60-70 parts of natural rubber, 30-40 parts of nitrile rubber 2-5 parts of zinc oxide, 2-4 parts of stearic acid, 4-6 parts of pine tar, 2-4 parts of anti-aging agent, 1.5-2.0 parts of accelerator DM, 1.0-1.5 parts of accelerator D, high 50-90 parts of wear-resistant carbon black, 2-5 parts of sulfur, 4-9 parts of coomalon, 2-10 parts of dibutyl fat, and 5-20 parts of short fiber.

[0008] The following three schemes can be adopted for illustration, and the effect parameters of each scheme are as follows:

[0009] Only the piston cup made by the above-mentioned plan 1 can drill two 1200-meter-deep production wells in Daqing without replacement, and the service life is greatly extended; while the existing piston cup...

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PUM

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Abstract

The invention is a material to make piston leather bowl of slurry pump, solving the problem of short life. Its characters: the components according to weight shares: natural glue 60-70, butyronitrile glue 30-40, zinc oxide 2-5, stearic acid 2-4, pine tar 4-6, anti-aging agent 2-4, accelerant DM 1.5-2.0, accelerant D 1.0-1.5, high-wearable carbon blacnk 50-90, sulphur 2-5, coumarone 4-9, dibutyl ester 2-10 and short fiber 5-20.

Description

Technical field: [0001] The invention relates to a material of an equipment accessory used in oil field drilling, which belongs to the material for making mud pump piston cups. Background technique: [0002] In the oilfield drilling process, mud pumps are used to carry out cuttings and circulating drilling fluid at the bottom of the well, and the mud pump completes the construction process through the reciprocating motion of the piston. The piston forms a closed cavity with the liquid cylinder and the leather bowl. When the bowl reciprocates with the piston, it has to withstand high pressure, and it also needs to transport liquids with high viscosity, high density, high sand content and high corrosion. The fluidity is relatively small, the wear resistance is poor, and it is easily damaged, resulting in Short life, resulting in high production costs. Invention content: [0003] In order to overcome the short service life caused by the poor wear resistance of existing leath...

Claims

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Application Information

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IPC IPC(8): C08K5/10C08L7/00F16J1/01
Inventor 焦学明
Owner 焦学明
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