Supercharge Your Innovation With Domain-Expert AI Agents!

Lubricating agent for drilling fluid as well as preparation method and application of lubricating agent

A drilling fluid and lubricant technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of poor temperature resistance, high foaming rate, and poor lubrication effect of drilling fluid lubricants, reducing direct contact Small area, particle size, the effect of reducing the coefficient of friction

Inactive Publication Date: 2018-11-02
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above defects, the present invention provides a lubricant for drilling fluid and its preparation method and application. The lubricant for drilling fluid can effectively improve the lubrication performance of drilling fluid, reduce the frictional resistance during drilling, and be compatible with drilling fluid Good performance and easy to disperse evenly in drilling fluid, which solves the problems of poor temperature resistance, high foaming rate and poor lubricating effect of drilling fluid lubricants in the prior art

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
  • Lubricating agent for drilling fluid as well as preparation method and application of lubricating agent
  • Lubricating agent for drilling fluid as well as preparation method and application of lubricating agent
  • Lubricating agent for drilling fluid as well as preparation method and application of lubricating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The preparation method of the nano-inorganic intermediate of the present embodiment is as follows:

[0056] a) Mix phyllosilicate and water to obtain the second mixture, adjust the pH of the second mixture to 1 with 1mol / L hydrochloric acid solution, heat and stir the second mixture to 75°C, keep warm and keep stirring for 30-40min to obtain Activated silicate intermediates;

[0057] Among them, the mass ratio of silicate to water is 1:20;

[0058] b) adding sodium cetyl sulfonate intercalation agent to the activated silicate intermediate, maintaining 75°C and stirring at 30 Hz for 11 hours to obtain an intercalation reaction system;

[0059] Among them, the mass ratio of the activated silicate intermediate to the sodium hexadecylsulfonate intercalation agent is 1:0.1;

[0060] c) Filtrating the intercalation reaction system, washing with deionized water several times, drying at 60°C for 24 hours, grinding and passing through a 200-mesh sieve to obtain the nano inorga...

Embodiment 2

[0063] The preparation method of the nano-inorganic intermediate of the present embodiment is as follows:

[0064] a) Mix phyllosilicate and water to obtain the second mixture, adjust the pH of the second mixture to 1 with 1mol / L hydrochloric acid solution, heat and stir the second mixture to 75°C, keep warm and keep stirring for 30-40min to obtain Activated silicate intermediates;

[0065] Among them, the mass ratio of silicate to water is 1:20;

[0066] b) adding sodium cetyl sulfonate intercalation agent to the activated silicate intermediate, maintaining 75°C and stirring at 30 Hz for 11 hours to obtain an intercalation reaction system;

[0067] Among them, the mass ratio of the activated silicate intermediate to the sodium hexadecylsulfonate intercalation agent is 1:0.19;

[0068] c) Filtrating the intercalation reaction system, washing with deionized water several times, drying at 60°C for 24 hours, grinding and passing through a 200-mesh sieve to obtain the nano inorg...

Embodiment 3

[0071] The preparation method of the nano-inorganic intermediate of the present embodiment is as follows:

[0072] a) Mix phyllosilicate and water to obtain the second mixture, adjust the pH of the second mixture to 1 with 1mol / L hydrochloric acid solution, heat and stir the second mixture to 75°C, keep warm and keep stirring for 30-40min to obtain Activated silicate intermediates;

[0073] Among them, the mass ratio of silicate to water is 1:20;

[0074] b) adding sodium cetyl sulfonate intercalation agent to the activated silicate intermediate, maintaining 75°C and stirring at 30 Hz for 11 hours to obtain an intercalation reaction system;

[0075] Among them, the mass ratio of the activated silicate intermediate to the sodium hexadecylsulfonate intercalation agent is 1:0.27;

[0076] c) Filtrating the intercalation reaction system, washing with deionized water several times, drying at 60°C for 24 hours, grinding and passing through a 200-mesh sieve to obtain the nano inorg...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a lubricating agent for drilling fluid as well as a preparation method and application of the lubricating agent. The preparation method comprises the following steps: (1) mixingstyrene with water, adding a nano-inorganic intermediate, a crosslinking agent and an emulsifying agent, and stirring, so as to obtain a first mixture; (2) stirring the first mixture in an inert atmosphere so as to obtain an intermediate emulsified product, heating the intermediate emulsified product to 70-85 DEG C, adding an initiator, maintaining the temperature, stirring for 7-10 hours so as to obtain a polystyrene nano-composite emulsion with a particle size of 40nm-90nm, and sequentially carrying out granulation treatment on the polystyrene nano-composite emulsion, so as to obtain polystyrene nano-composite particles; and (3) mixing industrial base oil, the polystyrene nano-composite particles and industrial oleic acid, and uniformly stirring at the room temperature, so as to obtainthe lubricating agent for the drilling fluid. The lubricating agent is easily dispersed in the drilling fluid, low in bubbling rate and good in heat resistance and has a good lubricating effect, and the compatibility of the drilling fluid is good.

Description

technical field [0001] The invention relates to a drilling fluid additive, in particular to a drilling fluid lubricant and a preparation method and application thereof, belonging to the technical field of oil field drilling and completion engineering. Background technique [0002] With the development of petroleum exploration and development, the depth of drilling is gradually increasing, and the drilling resistance is increasing. This requires that the drilling fluid used should have good lubrication and drag reduction characteristics to reduce the resistance during drilling. Especially during directional drilling, the curvature of the wellbore is relatively large, and the contact pressure, friction and friction between the drilling tool and the well wall are greatly increased when the drilling tool is tripped. Accidents such as drilling will occur, and even cause wellbore scrapping and engineering accidents in serious cases, causing huge safety hazards and economic losses....

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
IPC IPC(8): C09K8/03
CPCC09K8/03C09K2208/34C09K2208/02C09K2208/10C09K8/04C09K8/032C09K8/035
Inventor 柯扬船于呈呈
Owner CHINA UNIV OF PETROLEUM (BEIJING)
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com