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High-temperature-resistant and wear-resistant lubricating oil for drilling fluid and preparation method of lubricating oil

A technology of high temperature resistance and wear resistance, which is applied in the field of high temperature and wear resistance lubricating oil for drilling fluid and its preparation, can solve the problems of poor lubrication effect, poor high temperature resistance and wear resistance, etc., and achieve the reduction of friction coefficient and increase Lubrication performance, effect of improving high temperature resistance

Inactive Publication Date: 2014-10-08
青岛蓬勃石油技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high temperature and wear resistant lubricating oil for drilling fluid and its preparation method to solve the problems of poor lubricating effect and poor high temperature and wear resistance of traditional drilling fluid lubricating oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high-temperature-resistant and wear-resistant lubricating oil for drilling fluids, comprising the following raw materials in parts by mass: 30 kg of palm oil, 11 kg of sulfurized isobutylene, 5 kg of fatty alcohol polyoxyethylene ether, 6 kg of nano-graphite powder, dialkyl Zinc dithiophosphate 4 kg, oxymolybdenum dialkyldithiophosphate 8 kg, 3,4,5-trimethoxycinnamic acid 1 kg, lauric acid monoethanolamide phosphate 10 kg, glycerol 16 kg, Ethylene glycol monobutyl ether 10 kg, pentaerythritol 20 kg.

[0021] The preparation method of the present embodiment comprises the following steps:

[0022] The first step: According to the mass ratio, add 30 kg of palm oil into the reaction tank, stir and heat up to 50 °C, and then add 11 kg of sulfurized isobutylene, 5 kg of fatty alcohol polyoxyethylene ether, 6 kg of nano-graphite powder, and two Zinc alkyl dithiophosphate 4 kg, oxymolybdenum dialkyl dithiophosphate 8 kg, 3,4,5-trimethoxycinnamic acid 1 kg, lauric acid monoet...

Embodiment 2

[0025] A high-temperature-resistant and wear-resistant lubricating oil for drilling fluid, comprising the following raw materials in parts by mass: 48 kg of palm oil, 14 kg of sulfurized isobutylene, 8 kg of fatty alcohol polyoxyethylene ether, 9 kg of nano-graphite powder, dioxane Zinc dithiophosphate 9 kg, oxymolybdenum dialkyldithiophosphate 12 kg, 3,4,5-trimethoxycinnamic acid 3 kg, lauric acid monoethanolamide phosphate 14 kg, glycerol 19 kg , Ethylene glycol monobutyl ether 13 kg, pentaerythritol 30 kg.

[0026] The preparation method of the present embodiment comprises the following steps:

[0027] The first step: According to the mass ratio, add 48 kg of palm oil into the reaction tank, stir and heat up to 56 °C, and then add 14 kg of sulfurized isobutylene, 8 kg of fatty alcohol polyoxyethylene ether, 9 kg of nano-graphite powder, and two Zinc alkyl dithiophosphate 9 kg, oxymolybdenum dialkyl dithiophosphate 12 kg, 3,4,5-trimethoxycinnamic acid 3 kg, lauric acid mono...

Embodiment 3

[0030] High-temperature and wear-resistant lubricating oil for drilling fluid, including the following raw materials in parts by mass: 36 kg of palm oil, 12 kg of sulfurized isobutylene, 7 kg of fatty alcohol polyoxyethylene ether, 8 kg of nano-graphite powder, dialkyl di Zinc thiophosphate 7 kg, oxymolybdenum dialkyldithiophosphate 10 kg, 3,4,5-trimethoxycinnamic acid 2 kg, lauric acid monoethanolamide phosphate 13 kg, glycerin 17 kg, ethyl Diol monobutyl ether 12 kg, pentaerythritol 26 kg.

[0031] A preparation method for a high-temperature-resistant wear-resistant lubricating oil for drilling fluid, comprising the following steps:

[0032] The first step: According to the mass ratio, add 36 kg of palm oil into the reaction tank, stir and heat up to 55 ° C, and then add 12 kg of sulfurized isobutylene, 7 kg of fatty alcohol polyoxyethylene ether, 8 kg of nano-graphite powder, and two Zinc alkyl dithiophosphate 7 kg, oxymolybdenum dialkyl dithiophosphate 10 kg, 3,4,5-trimet...

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Abstract

The invention relates to high-temperature-resistant and wear-resistant lubricating oil for a drilling fluid. The lubricating oil is prepared from the following raw materials in parts by mass: 30-48 parts of palm oil, 11-14 parts of sulfurized isobutylene, 5-8 parts of fatty alcohol-polyoxyethylene ether, 6-9 parts of nano graphite powder, 4-9 parts of zinc dialkyl dithiophosphate, 8-12 parts of molybdenum oxygen dialkyldithiophosphate, 1-3 parts of 3, 4, 5-trimethoxyl cinnamic acid, 10-14 parts of lauric acid monoethanolamide phosphate, 16-19 parts of glycerine, 10-13 parts of ethylene glycol monobutyl ether and 20-30 parts of pentaerythritol. By reasonably compounding the palm oil and other additives, the lubricating performance, high-temperature resistance and wear resistance of the lubricating oil are effectively improved. Meanwhile, 3, 4, 5-trimethoxyl cinnamic acid and lauric acid monoethanolamide phosphate are added, so that the high-temperature resistance, the wear resistance and the antirust time of the lubricating oil are effectively improved under the joint effect of 3, 4, 5-trimethoxyl cinnamic acid, lauric acid monoethanolamide phosphate and other components, and the friction coefficient is greatly lowered.

Description

Technical field [0001] The present invention is the field of lubricating oil technology, which involves a drilling fluid with high temperature and wear -resistant lubricant and its preparation methods. Background technique [0002] General lubricating oil is to add one or more additives to the lubricant to improve the characteristics of lubricating oil and make the lubricant have some new properties, such as giving lubricating oil antioxidant, cleaning, anticorrosive rust and other properties.EssenceThe use of lubricating oil brings great convenience to people's life or industrial production. [0003] During the modern drilling process, the depth of drilling has increased a lot compared with the past, and it has gradually developed in the direction of deep wells. Due to the increase in drilling depth, it has brought greater difficulties to mining.Under normal circumstances, due to the high temperature and pressure of the undercuts, and the long working time of the underground, th...

Claims

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Application Information

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IPC IPC(8): C09K8/03
CPCC09K8/03C09K2208/34
Inventor 李瑞国
Owner 青岛蓬勃石油技术服务有限公司
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