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Preparation method for novel nano lubricant for drilling fluid

A technology for lubricants and drilling fluids, which is applied in the field of preparation of new nano-lubricants for drilling fluids, can solve the problems of high price, adverse effects on drilling fluid performance, few types of multi-functional and efficient lubricants, etc. and inhibitory, high-intensity effects

Inactive Publication Date: 2018-03-30
SHAANXI JUJIEHAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years. Drilling fluid lubricant research has made great progress. However, there are few types of multifunctional high-efficiency lubricants and high prices, which can easily have an adverse effect on the performance of drilling fluids. Research on technical and economical drilling fluid lubricants has become an inevitable development trend.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of preparation method of novel nano-lubricant for drilling fluid of the present invention comprises the following preparation steps:

[0017] (1) Place the nano-silica powder in a vacuum drying oven and dry at 100-150°C for 12-36h;

[0018] (2) Weigh 10g of nano-silica powder and disperse it in 50mL of absolute ethanol, use a non-contact automatic ultrasonic breaker, and ultrasonically disperse for 30min at a power of 900W;

[0019] (3) Dissolve another 1.2g of silane coupling agent KH570 in 10mL of absolute ethanol, mix the two evenly, continue to ultrasonically disperse for 1 hour under 900W power, and then transfer to a four-necked flask;

[0020] (4) React for 5-8 hours under nitrogen atmosphere, uniform stirring and ultrasonic oscillation at 80-120°C;

[0021] (5) After the reaction, the product was centrifuged, washed several times with absolute ethanol, and dried in a vacuum oven at 60°C for later use;

[0022] (6) Add the product obtained in step (5) an...

Embodiment 2

[0025] A kind of preparation method of novel nano-lubricant for drilling fluid of the present invention comprises the following preparation steps:

[0026] (1) Place the nano-silica powder in a vacuum drying oven and dry at 100-150°C for 12-36h;

[0027] (2) Weigh 10g of nano-silica powder and disperse it in 50mL of absolute ethanol, use a non-contact automatic ultrasonic breaker, and ultrasonically disperse for 30min at a power of 900W;

[0028] (3) Dissolve another 1.2g of silane coupling agent KH570 in 10mL of absolute ethanol, mix the two evenly, continue to ultrasonically disperse for 1 hour under 900W power, and then transfer to a four-necked flask;

[0029] (4) React for 5-8 hours under nitrogen atmosphere, uniform stirring and ultrasonic oscillation at 80-120°C;

[0030] (5) After the reaction, the product was centrifuged, washed several times with absolute ethanol, and dried in a vacuum oven at 60°C for later use;

[0031] (6) Add the product obtained in step (5) an...

Embodiment 3

[0034] A kind of preparation method of novel nano-lubricant for drilling fluid of the present invention comprises the following preparation steps:

[0035] (1) Place the nano-silica powder in a vacuum drying oven and dry at 100-150°C for 12-36h;

[0036] (2) Weigh 10g of nano-silica powder and disperse it in 50mL of absolute ethanol, use a non-contact automatic ultrasonic breaker, and ultrasonically disperse for 30min at a power of 900W;

[0037] (3) Dissolve another 1.2g of silane coupling agent KH570 in 10mL of absolute ethanol, mix the two evenly, continue to ultrasonically disperse for 1 hour under 900W power, and then transfer to a four-necked flask;

[0038] (4) React for 5-8 hours under nitrogen atmosphere, uniform stirring and ultrasonic oscillation at 80-120°C;

[0039] (5) After the reaction, the product was centrifuged, washed several times with absolute ethanol, and dried in a vacuum oven at 60°C for later use;

[0040] (6) Add the product obtained in step (5) an...

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PUM

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Abstract

The invention relates to a preparation method for a novel nano lubricant for a drilling fluid. The preparation method comprises the following steps of (1) putting nano silicon dioxide powder in a vacuum dry box, and stoving for 12-36 hours at 100-150DEG C; and (2) weighing 10g of nano silicon dioxide powder and dispersing the powder in 50mL of ethyl alcohol absolute, and ultrasonic dispersing for30 minutes at 900W by using a non-contact full automatic ultrasonic crusher. The lubricant prepared by the method has no obvious effect on the rheological property of the drilling fluid, has certain filtration reducing property and inhibitive ability, has high extreme pressure membrane strength, can resist high temperature reaching up to 180DEG C or more, and has a fluorescence level of level 1-2.

Description

technical field [0001] The invention relates to a preparation method of a novel nano lubricant for drilling fluid. Background technique [0002] With the expansion and deepening of oil and gas resources exploration and development, the difficulty of drilling continues to increase, the complexity of drilling encounters is more prominent, and it is required to increase the drilling speed: therefore. It is necessary to add a large amount of drilling fluid lubricant to reduce friction during drilling and reduce downhole complications⋯. In recent years. Drilling fluid lubricant research has made great progress. However, there are few types of multifunctional high-efficiency lubricants and high prices, which can easily have adverse effects on the performance of drilling fluids. Research on technical and economical drilling fluid lubricants has become an inevitable development trend. Nanomaterials have various excellent properties, and their application prospects in many fields ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035C09K8/03
CPCC09K8/035C09K8/032C09K2208/10C09K2208/34
Inventor 李长英
Owner SHAANXI JUJIEHAN CHEM CO LTD