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

Shale inhibitor organosilicon polymer used for drilling fluid and preparation method of shale inhibitor organosilicon polymer

A technology of shale inhibitors and polymers, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of reducing the expansion coefficient of shale, reducing the rate of clay slurrying, etc., so as to reduce the expansion coefficient and improve the Rheological properties, moisture content suppression effect

Active Publication Date: 2017-05-03
石家庄华莱鼎盛科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above technologies have a strong inhibitory effect on how to make organosilicon polymers have a strong ability to adsorb and coat clay particles, which can effectively reduce the expansion coefficient of shale, reduce the slurrying rate of clay, and inhibit the hydration and dispersion of shale. Improve the stability of the well wall, without giving a specific guidance plan

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
  • Shale inhibitor organosilicon polymer used for drilling fluid and preparation method of shale inhibitor organosilicon polymer
  • Shale inhibitor organosilicon polymer used for drilling fluid and preparation method of shale inhibitor organosilicon polymer
  • Shale inhibitor organosilicon polymer used for drilling fluid and preparation method of shale inhibitor organosilicon polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: the shale inhibitor organosilicon polymer for drilling fluid of the present invention is to be made from the raw material of following weight ratio:

[0040]

[0041] The above-mentioned natural high molecular polymer is selected from lignin, the above-mentioned azo initiator is selected from azobisisoheptanonitrile, and the molecular weight regulator is selected from dodecyl mercaptan.

[0042] The preparation method of the shale inhibitor organosilicon polymer for drilling fluid includes the following process steps: ① firstly take the natural high molecular polymer according to the above weight ratio, add it into the reaction kettle, and add the natural high molecular weight polymer The molecular polymer undergoes a degradation reaction, which is hydrolyzed into a macromolecular compound at 80°C, and the reaction time is 2 hours to obtain an intermediate product; ②Then add the above-mentioned organosilicon monomer, azo Initiator and molecular weight r...

Embodiment 2

[0043] Embodiment 2: the shale inhibitor organosilicon polymer for drilling fluid of the present invention is to be made from the raw material of following weight ratio:

[0044]

[0045] The above-mentioned natural high molecular polymer is selected from chitosan, the above-mentioned azo initiator is selected from azobisisoheptanonitrile, and the molecular weight regulator is selected from sodium methacrylic sulfonate.

[0046] The preparation method of the shale inhibitor organosilicon polymer for drilling fluid includes the following process steps: ① firstly take the natural high molecular polymer according to the above weight ratio, add it into the reaction kettle, and add the natural high molecular weight polymer Molecular polymer undergoes a degradation reaction to hydrolyze it into a macromolecular compound at 60°C. The reaction time is 2 hours to obtain an intermediate product; ②Then add the above-mentioned organosilicon monomer, azo Initiator and molecular weight r...

Embodiment 3

[0047] Embodiment 3: the shale inhibitor organosilicon polymer for drilling fluid of the present invention is made from the raw materials of following weight ratio:

[0048]

[0049] The above-mentioned natural high molecular polymer is selected from cellulose, the above-mentioned azo initiator is selected from azobisisovaleronitrile, and the molecular weight regulator is selected from mercaptopropionic acid.

[0050] The preparation method of the shale inhibitor organosilicon polymer for drilling fluid includes the following process steps: ① firstly take the natural high molecular polymer according to the above weight ratio, add it into the reaction kettle, and add the natural high molecular weight polymer Molecular polymer undergoes a degradation reaction to hydrolyze it into a macromolecular compound at 70°C. The reaction time is 2 hours to obtain an intermediate product; ②Then add the above-mentioned organosilicon monomer, azo Initiator and molecular weight regulator, p...

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 discloses a shale inhibitor organosilicon polymer used for drilling fluid and a preparation method of the shale inhibitor organosilicon polymer. The shale inhibitor organosilicon polymer is prepared from the following raw materials including natural polymers, organosilicone monomers, azo type initiators and molecular weight regulators. The preparation method comprises the following technical steps that the natural polymers are weighed and added into a reaction kettle so as to be hydrolyzed into macromolecular compounds at 60-80 DEG C, the reaction time lasts for 2 hours to 2 hours and 10 minutes, and intermediate products are obtained; then, the organosilicone monomers, the azo type initiators and the molecular weight regulators are added into the intermediate products, polymerization is conducted at 120-160 DEG C, and the reaction time lasts for 8-10 hours. The shale inhibitor organosilicon polymer is high in inhibitive ability and clay particle adsorbing and coating capacity; and through the shale inhibitor organosilicon polymer, the expansion coefficient of shale is effectively decreased, the mud yield of clay is decreased, hydration dispersion of the shale is inhibited, the stability of a well wall is improved, collapse is inhibited, and a hydrocarbon reservoir is effectively protected.

Description

technical field [0001] The invention relates to a petroleum drilling fluid additive, in particular to a shale inhibitor organosilicon polymer for drilling fluid. The invention also relates to a preparation method of the shale inhibitor organosilicon polymer for drilling fluid. Background technique [0002] my country is rich in oil and gas resources. With the development of oil and gas fields in recent decades, shale inhibition and environmental protection have always been important topics in the study of drilling fluid performance. So far, the mature water-based drilling fluid system cannot meet the requirements of highly-inhibited highly deviated wells and Deep well performance needs. Shale is made of hardened clay particles that absorb water and swell and crack. Especially when carbonaceous shale is encountered during drilling, it swells and collapses in a very short period of time after encountering water, causing a series of downhole complex accidents such as well wall...

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): C08G77/04C08G77/06C08L83/04C08L97/00C08L5/08C08L1/02C09K8/035
CPCC08G77/04C08G77/06C08L83/04C09K8/035C09K2208/12C08L97/005C08L5/08C08L1/02
Inventor 陈利赵秀平
Owner 石家庄华莱鼎盛科技有限公司
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