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Lubricating agent for drilling fluid and preparation method thereof

A lubricant and drilling fluid technology, applied in the field of petroleum drilling fluid, can solve the problems of poor biodegradability of mineral lubricants and environmental pollution, and achieve the effects of reducing production cost, improving production efficiency and stable performance

Inactive Publication Date: 2014-04-16
新乡市振华钻井液材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lubricants currently in use are mostly formulated with mineral oil. Due to the poor biodegradability of mineral lubricants, they cause serious environmental pollution. With the continuous enhancement of human environmental protection awareness, the environmental requirements for lubricants are also getting higher and higher, and there is an urgent need to develop Environmentally Friendly Lubricants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The present invention selects vegetable oil for use, and described vegetable oil is peanut oil, and the weight of peanut oil is 70% weight portion of whole product quality, then chooses and adds 30% methyl alcohol that accounts for whole product quality; Slowly add the selected methanol, stir evenly, and continue heating for 3 hours. After stopping heating, the mixed liquid is naturally cooled to 30°C, and the preparation is completed.

Embodiment 2

[0011] The present invention selects vegetable oil for use, and described vegetable oil is rapeseed oil, and the weight of rapeseed oil is 80% weight portion of whole product quality, then chooses to add 20% methyl alcohol that accounts for whole product quality; After reaching 110°C, slowly add the selected methanol, stir evenly, and continue heating for 3.5 hours. After stopping the heating, the mixed liquid is naturally cooled to 28°C, and the preparation is completed.

Embodiment 3

[0013] The present invention selects vegetable oil for use, and described vegetable oil is waste oil, and the weight of waste oil is 90% weight part of whole product quality, then selects and adds 10% methyl alcohol that accounts for whole product quality; , and then slowly add the selected methanol, stir evenly, continue heating for 4 hours, stop heating, and cool the mixed liquid to 27°C naturally, and the preparation is completed.

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PUM

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Abstract

The invention discloses a lubricating agent for a drilling fluid and a preparation method thereof. The invention aims to design a lubricating agent for a drilling fluid which is low in cost and does not pollute the environment. According to the technical scheme, the lubricating agent for a drilling fluid comprises vegetable oil and methanol, wherein the vegetable oil accounts for 70-90 percent of the weight of the components, and the methanol accounts for 10-30 percent of the weight of the components. The method for preparing the lubricating agent for a drilling fluid comprises the following steps: heating the selected vegetable oil to 100-110 DEG C, slowly adding the selected methanol, uniformly stirring, continuously heating for 3-4 hours, stopping heating, naturally cooling the mixed liquid to be 30 DEG C or below, and finishing the preparation. The lubricating agent for a drilling fluid has the advantages of stable performance, no toxicity, easy biodegradation and slight environmental pollution, the friction between the wall of a well and a drilling tool can be effectively reduced, the drilling production cost is reduced, and the drilling production efficiency is improved.

Description

technical field [0001] The invention relates to the field of petroleum drilling fluid, in particular to a lubricant for drilling fluid and a preparation method thereof. Background technique [0002] Drilling fluid is a working fluid that can carry cuttings, cool and lubricate drill bits, balance formation pressure, protect wellbore stability and protect oil layers from damage during drilling. Its performance directly affects drilling efficiency and downhole safety. And cost control is an important part of drilling engineering technology. Drilling fluid lubricant is an important chemical treatment agent for drilling fluid. Its function is to improve the lubricity of drilling fluid, reduce the friction between the well wall and the drilling tool, reduce the rotational torque of the drill string and the tripping resistance, thereby reducing the The occurrence of drill stuck accidents. [0003] In recent years, due to the development of drilling technology, higher requirements...

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 周庆丰夏鹏
Owner 新乡市振华钻井液材料有限公司