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Material for making piston rubber-cup 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 short service life, low cost, poor wear resistance, etc., and achieve long service life, not easy to damage, high hardness and very good effect

Inactive Publication Date: 2005-12-28
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 for making mud pump piston leather bowls. The leather bowls made of this material have good wear resistance, are not easy to damage, and cost less. Low

Method used

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  • Material for making piston rubber-cup of slurry pump

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Embodiment Construction

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

[0007] A material for making mud pump piston cups, which is made of the following raw materials, and the ingredients are proportioned by weight: 60-70 parts of natural rubber, 30-40 parts of nitrile rubber, 2-5 parts of zinc oxide, stearin 2-4 parts of acid, 4-6 parts of pine tar, 2-4 parts of anti-aging agent D, 1.5-2.0 parts of accelerator DM, 1.0-1.5 parts of accelerator D, 50-90 parts of high wear-resistant carbon black, 2 parts of sulfur ~5 parts, coumarone 4~9 parts, dibutyl fat 2~10 parts, short fiber 5~20 parts.

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

[0009]

[0010] 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 can only be used on one 1200-meter-deep product...

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Abstract

A material for making mud pump piston cups. The problem of short service life caused by the poor wear resistance of the existing piston cup is solved. It is characterized in that: the components and proportions are as follows 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 D1.0-1.5 parts of high wear-resistant carbon black 50-90 parts, 2-5 parts of sulfur, 4-9 parts of Coumaron, dibutyl 2-10 parts of fat, 5-20 parts of short fiber. The hardness and stiffness of the piston cup made by the invention are good, and it is not easy to be damaged, so the service life is long and the production cost is greatly reduced.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/10C08L7/00F16J1/01
Inventor 焦学明
Owner 焦学明