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Liquid lubricant for drilling fluid and preparation method of liquid lubricant

A lubricant and drilling fluid technology, applied in the field of water-based drilling treatment fluid, can solve the problems of difficult and weak varieties and performance, and achieve the effects of improving lubrication performance, reducing drilling costs, and reducing oil-water interfacial tension

Inactive Publication Date: 2016-02-03
天津滨海新区普瑞德石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the research on drilling fluid lubricants has made great progress, the current domestic research on lubricants is still at a relatively weak stage. The ability to pull and torque is unsatisfactory, which has high research significance

Method used

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  • Liquid lubricant for drilling fluid and preparation method of liquid lubricant
  • Liquid lubricant for drilling fluid and preparation method of liquid lubricant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A kind of liquid lubricant for drilling fluid

[0017] A liquid lubricant for drilling fluid, which is made of the following raw materials in parts by weight: 550 parts of methyl oleate, 200 kg of silicone oil, 200 kg of white oil, 50 kg of overstock oil, 60 kg of emulsifier S-8060 parts, and 1060 parts of surfactant OP- , Masking agent 18kg.

[0018] The preparation method of the above-mentioned liquid lubricant is as follows: add 550kg of methyl oleate, 200kg of silicone oil, 200kg of white oil, and 50kg of overstocked oil into the enamel stirring kettle, stir and heat up to 55-60°C, keep warm and stir for 30min, and add emulsifying Agent S-8060kg, surfactant OP-1060kg, masking agent 18kg, just stir evenly.

Embodiment 2

[0019] Embodiment 2: A kind of liquid lubricant for drilling fluid

[0020] A liquid lubricant for drilling fluid, which is made of the following raw materials in parts by weight: 580 parts of methyl oleate, 220 kg of silicone oil, 220 kg of white oil, 70 kg of overstock oil, 80 kg of emulsifier S-8080 parts, and 1080 parts of surfactant OP- , Masking agent 20kg.

[0021] The preparation method of the above-mentioned liquid lubricant is as follows: add 580kg of methyl oleate, 220kg of silicone oil, 220kg of white oil, and 70kg of overstock oil into the enamel stirring kettle, stir and heat up to 55-60°C, keep stirring for 30min, visually observe that the mixture is uniform, and then add emulsification Agent S-8080kg, surfactant OP-1080kg, masking agent 20kg, just stir evenly.

Embodiment 3

[0022] Embodiment 3: A kind of liquid lubricant for drilling fluid

[0023] A liquid lubricant for drilling fluid, which is made of the following raw materials in parts by weight: 500 parts of methyl oleate, 180 kg of silicone oil, 180 kg of white oil, 40 kg of overstock oil, 70 kg of emulsifier S-8070 parts, and 1070 parts of surfactant OP- , Masking agent 16kg.

[0024] The preparation method of the above-mentioned liquid lubricant is as follows: add 500kg of methyl oleate, 180kg of silicone oil, 180kg of white oil, and 40kg of overstocked oil into the enamel stirring kettle, stir and heat up to 55-60°C, keep stirring for 30min, visually observe and stir evenly, and then add emulsification Agent S-8070kg, surfactant OP-1070kg, masking agent 16kg, just stir evenly.

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Abstract

The invention discloses a liquid lubricant for a drilling fluid and a preparation method of the liquid lubricant. The liquid lubricant is prepared from the following raw materials by weight: 500 to 600 parts of methyl oleate, 170 to 230 parts of silicone oil, 170 to 230 parts of white oil, 30 to 80 parts of backlogged oil, 40 to 80 parts of an emulsifier, 40 to 80 parts of a surfactant, and 15 to 20 parts of a covering agent. The liquid lubricant can be used for a water-based drilling fluid, is approximately not changed in lubricity at 200 DEG C high temperature, can be used for reducing the pulling up force and the torque of a drill stem greatly, and is relatively high in resistance reducing lubricity.

Description

technical field [0001] The invention relates to a water-based drilling treatment fluid, in particular to a high temperature resistant liquid lubricant for drilling fluid. Background technique [0002] Drilling fluid is mostly composed of dispersion medium, dispersed phase, and drilling fluid treatment agent, also known as drilling blood, which is indispensable to the development of water-based drilling technology and is also the fastest growing component. Among them, the dispersion medium can be water or oil; the dispersed phase is usually clay (bentonite: a clay mineral with a montmorillonite content of not less than 85%) can also be oil, water or gas; the treatment agent can be added as needed, usually There are 18 types. Lubricant is a kind of treatment agent, which can improve and optimize various indicators of drilling fluid. It is an important preparation for improving drilling fluid level and improving drilling yield and efficiency. [0003] With the popularization a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035
CPCC09K8/035C09K2208/34
Inventor 周永
Owner 天津滨海新区普瑞德石油科技有限公司
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