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Anti-blocking lubricant for drilling fluid and preparing method

A production method and lubricant technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems such as environmental pollution, high fluorescence levels, interference with geological logging data, etc., to prevent pipe sticking accidents and improve lubrication performance Strong, lubricating coefficient reduction effect

Inactive Publication Date: 2012-06-13
LANGFANG QINGXING CHEM
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] Known anti-seize lubricants for drilling fluids have high fluorescence levels, interfere with geological logging data, and cause serious pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The invention is prepared by mixing No. 10 white oil, methyl oleate and emulsifier SOP-80.

[0011] Add 97.5% of No. 10 white oil into the reaction kettle, stir slowly and heat up to 25°C; then add 2% methyl oleate, stir evenly at a slow speed, heat up while stirring, control the temperature not to exceed 45°C, and stir without stirring. After less than 30 minutes, add 0.5% emulsifier SOP-80, keep stirring and raise the temperature, control the temperature not to exceed 50°C, and keep stirring for 1 hour to obtain the present invention.

[0012] The invention is a yellow or light yellow or yellow-green transparent liquid, which can be used as a liquid lubricant for oil drilling, with a density of 0.8-0.9g / cm 3 , Fluorescence level 3 , The reduction rate of lubrication coefficient is more than 80%.

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Abstract

Disclosed are anti-blocking lubricant for drilling fluid and a preparing method. The anti-blocking lubricant for drilling fluid is characterized by including the following components, by weight percentage, 97.5% of No.10 white oil, 2% of oleic acid formic ester and 0.5% of emulsifier (SOP (standard operation procedure)-80). The manufacturing method includes steps of adding 97.5% of the No.10 white oil into a reactor, slowly mixing the same until the temperature rises to 25 DEG C, then adding 2% of the oleic acid formic ester and mixing uniformly slowly as heating in a manner of controlling the temperature to be no higher than 45 DEG C and mixing time to be not less than 30 minutes, finally, adding 0.5% of the emulsifier (SOP-80) and mixing continuously for one hour while heating again and controlling the temperature to be no higher than 50 DEG C. The anti-blocking lubricant for drilling fluid is high in lubricating performance, free of fluorescence and affection on geological logging data, capable of effectively preventing blocking of a drill during drilling and filling the blank of the field in home and abroad and reduction rate of lubrication coefficient is higher than 80%.

Description

technical field [0001] The invention relates to an anti-seize lubricant for drilling fluid and a production method thereof. Background technique [0002] At present, the oil industry standard for similar products requires "lubrication coefficient reduction rate" ≥ 50%; the oil industry standard for extreme pressure similar products requires "lubrication coefficient reduction rate" ≥ 70%. [0003] Known anti-seize lubricants for drilling fluids have high fluorescence levels, which interfere with geological logging data and cause serious pollution to the environment. Contents of the invention [0004] In view of the deficiencies in the above technical problems, the object of the present invention is to provide an anti-seize lubricant for drilling fluid and a production method. [0005] Technical scheme of the present invention is as follows: [0006] An anti-seize lubricant for drilling fluid and its production method, characterized in that it consists of the following com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035
Inventor 袁世杰
Owner LANGFANG QINGXING CHEM
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