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Gear oil composition for reduction box of oil pumping unit and its prepn

A technology for pumping units and reduction boxes, which is applied in the direction of lubricating compositions, petroleum industry, additives, etc. It can solve the problems of poor lubricating performance, easy theft, short service life, etc., achieve high pressure resistance, prevent theft, The effect of preventing splash loss

Inactive Publication Date: 2004-03-10
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the prior art, the present invention provides a new gear oil for the reduction box of oil field pumping units, which has the characteristics of anti-theft, anti-leakage, good extreme pressure lubricity, good temperature resistance and stability, and long service life. Solve the problems of easy theft, poor lubricating performance and short service life of ordinary lubricating oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: 30 parts of special thickening agent hydrogenated castor oil 10 parts of antioxidant thionyl octyl zinc salt 10 parts of solid microbead lubricant molybdenum disulfide 12 parts of rust and corrosion inhibitor benzotriazole 9 parts in refinery Viscosity base oil (base oil A) 65 parts refined 4-line oil (base oil B) 22 parts extreme pressure lubricating film-forming agent dialkyldithioammonium carboxylate 8 parts waterproofing agent benzotriazole fatty acid amine sodium salt 10 parts The preparation method is as follows:

[0024] 1. Add high-viscosity refined base oil A and thickener into the reaction kettle, and carry out thickening reaction at 100°C for 5 hours;

[0025] 2. After the thickening reaction, raise the temperature to 180°C, then add other additives such as antioxidant, antirust and corrosion inhibitor, extreme pressure lubricating film forming agent, waterproofing agent, and add 20 parts of base oil B to carry out the secondary reaction;

[00...

Embodiment 2

[0027] 4. Shear reaction for 1.5 hours, adjust the cone penetration to 500 (10 -1 mm) / 25°C, and then pack it out of the kettle when the temperature drops to 80°C. Example 2: 5 parts of special thickener lauryl hydroxystearic acid 0.4 part of antioxidant 2,6-di-tert-butyl-p-cresol 0.4 part of solid microbead lubricant anti-high temperature wear-resistant resin microbead 0.3 part of antirust and corrosion inhibition Agent barium dinonylbenzene sulfonate 0.8 parts extreme pressure lubrication film-forming agent dialkyldithioammonium formate 2 parts waterproofing agent benzotriazole fatty acid amine potassium salt 4 parts CA-40 diesel engine oil (base oil A) 50 35 parts of refined 4-line oil (base oil B) The preparation method is as follows:

[0028] 1. Add the high-viscosity refined base oil A and thickener into the reaction kettle, and carry out the thickening reaction at 110°C, and the reaction time is 4.5 hours;

[0029] 2. After the thickening reaction, raise the temperatur...

Embodiment 3

[0032] Example 3: 18 parts of special thickener, hydrogenated castor oil, 2 parts of antioxidant, thiophosphobutyloctyl zinc salt, 2 parts of solid microbead lubricant, molybdenum disulfide, 4 parts of antirust and corrosion inhibitor, 5 parts of benzotriazole, extreme pressure lubrication Film-forming agent cerium dialkyl dithioammonium formate 3 parts waterproofing agent benzotriazole fatty acid amine sodium salt 6 parts refinery medium viscosity base oil (base oil A) 55 parts QA-40 engine oil (base oil B) 30 Parts are prepared as follows:

[0033] 1. Add the high-viscosity refined base oil A and thickener into the reaction kettle, and carry out the thickening reaction at 110°C, and the reaction time is 4.5 hours;

[0034] 2. After the thickening reaction, raise the temperature to 200°C, then add other additives such as antioxidant, antirust and corrosion inhibitor, extreme pressure lubricating film forming agent, water repellent, and add 28 parts of base oil B to carry out ...

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Abstract

The present invention belongs to the field of petrochemical technology. The present invention is mainly using special densifier to densify medium-viscosity refined oil, adding additives for resisting oxidation, resisting water, antirust, antifriction, extreme pressure lubricating and othre purposes separately and adding solid bead so as to compose semi-fluid gear oil composite for reduction box of oil pumping unit. The lubricating oil for gear box has good extreme pressure lubricating performance, good temperature stability and other advantages.

Description

(1) Technical field [0001] The invention relates to an anti-theft gear oil composition for an oil pumping unit reduction box and a preparation method thereof, belonging to the field of petrochemical industry. (2) Background technology [0002] Oil field pumping unit gearbox is a kind of general transmission equipment. At present, oilfields generally use mechanical oil or gear oil as lubricant for lubrication. In the process of on-site use, the following problems generally exist: 1. Large oil consumption and waste of energy. Because of its good liquidity, it is easy to be stolen by criminals. 2. The oil change cycle is short, which increases the work intensity of maintenance. If required, the oil field pumping unit gearbox must be changed twice a year, once in spring and once in winter. 3. The mechanical oil cannot fully meet the requirements, and the mechanical wear is fast. In order to prevent the lubricating oil from being stolen in some oil fields, the gearbox is welded...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M135/10
Inventor 杨振杰
Owner XI'AN PETROLEUM UNIVERSITY
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