Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Non-fluorescent graphitic lubricant for drilling fluid

A graphite lubricant, non-fluorescence technology, applied in the direction of drilling composition, chemical instruments and methods, etc., can solve the problems of drilling fluid viscosity, increased shear force, difficult to meet, difficult to biodegrade, etc., to prevent pressure difference Drill sticking, prolonging service life, and good compatibility

Active Publication Date: 2013-04-17
SICHUAN ZHENGRONG IND +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of oil drilling, it is often necessary to use a large amount of drilling fluid lubricants to reduce the friction between the well wall and the drilling tool, the drilling tool and the casing, reduce downhole complexity, and increase the drilling speed. Although in recent years, drilling fluid lubrication Great progress has been made in the research of drilling fluid, but there are still some problems: such as causing drilling fluid foaming, drilling fluid viscosity and shear force increase, which is not conducive to the maintenance and treatment of drilling fluid performance on site; poor lubricating performance, low extreme pressure film strength, Difficult to meet the requirements of directional wells under high lateral pressure conditions; high fluorescence levels, interference with geological logging, and certain toxicity. Difficult to biodegrade, oily drilling cuttings and waste drilling fluids cause serious pollution to the environment, especially the environmental protection requirements in offshore drilling It is very necessary to develop drilling fluid lubricants that can meet the requirements of drilling operations and do not pollute the environment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-fluorescent graphitic lubricant for drilling fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A non-fluorescent graphite lubricant for drilling fluids, the lubricant is made of the following ingredients by weight percentage:

[0025] Solid graphite 70%

[0026] Polyoxyethylene ether 30%

[0027] The method for preparing non-fluorescent graphite lubricant comprises the following steps:

[0028] ① Add the solid graphite of the above formula into the pulverizer, and process it into a certain 120-mesh graphite fine powder;

[0029] ②Put graphite fine powder into a container with a mixer, add polyoxyethylene ether in the amount of the above formula while stirring, and make it fully mixed;

[0030] ③Package after natural air drying or drying.

Embodiment 2

[0032] A non-fluorescent graphite lubricant for drilling fluids, the lubricant is made of the following ingredients by weight percentage:

[0033] Solid graphite 80%

[0034] Polyoxyethylene ether 20%

[0035] The method for preparing non-fluorescent graphite lubricant comprises the following steps:

[0036] ① Add the solid graphite of the above formula into the pulverizer, and process it into a certain 120-mesh graphite fine powder;

[0037] ②Put graphite fine powder into a container with a mixer, add polyoxyethylene ether in the amount of the above formula while stirring, and make it fully mixed;

[0038] ③Package after natural air drying or drying.

Embodiment 3

[0040] A non-fluorescent graphite lubricant for drilling fluids, the lubricant is made of the following ingredients by weight percentage:

[0041] Solid graphite 90%

[0042] Polyoxyethylene Ether 10%

[0043] The method for preparing non-fluorescent graphite lubricant comprises the following steps:

[0044] ① Add the solid graphite of the above formula into the pulverizer, and process it into a certain 120-mesh graphite fine powder;

[0045] ②Put graphite fine powder into a container with a mixer, add polyoxyethylene ether in the amount of the above formula while stirring, and make it fully mixed;

[0046] ③Package after natural air drying or drying.

[0047] Add the present invention in 6% bentonite slurry, measure its lubricating coefficient, the result is as table 4:

[0048] Table 4 Lubrication performance of the present invention

[0049] Invention (1%)

[0050] As can be drawn from Table 4, the present invention has excellent lubricity, and when the addit...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a non-fluorescent graphitic lubricant for a drilling fluid, which is characterized by being prepared from the following components in percentage by weight: 70-90% of solid graphite and 10-30% of polyoxyethylene ether. The non-fluorescent graphitic lubricant of the invention has no influence on the drilling fluid and greatly lowers the coefficient of friction resistance, thus playing roles in antifriction and sticking prevention. The lubricant of the invention has no fluorescence, so that geological logging is free from interference.

Description

technical field [0001] The invention relates to a non-fluorescent graphite lubricant for drilling fluid. Background technique [0002] With the continuous expansion of China's oil exploration fields, the formations encountered are becoming more and more complex. In the process of oil drilling, it is often necessary to use a large amount of drilling fluid lubricants to reduce the friction between the well wall and the drilling tool, the drilling tool and the casing, reduce downhole complexity, and increase the drilling speed. Although in recent years, drilling fluid lubrication Great progress has been made in the research of drilling fluid, but there are still some problems: such as causing drilling fluid foaming, drilling fluid viscosity and shear force increase, which is not conducive to the maintenance and treatment of drilling fluid performance on site; poor lubricating performance, low extreme pressure film strength, Difficult to meet the requirements of directional wel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/03
Inventor 王刚毅何纶
Owner SICHUAN ZHENGRONG IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com