A kind of crosslinking agent of crosslinkable organic acid and its preparation method and application
An organic acid and cross-linking agent technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problem of not meeting the requirements of deep penetration of the acidizing system, not being able to cross-link organic acid liquid, and not treating the formation Deep and other problems, to achieve good delayed crosslinking performance, long effective distance of acid etching, good temperature resistance and shear resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] Add 5g of titanium tetrachloride, 50g of isopropanol, and 15g of ethylene glycol into a three-necked flask equipped with stirring and a thermometer, heat to 40°C, and stir at a constant speed of 190r / min for 30min. Add 20g of glycine and 3g of polyepoxysuccinic acid to the above homogeneous solution, heat to 60°C, and stir at 190r / min for 2h; the organic acid crosslinking agent is obtained.
[0039] Application of organic acid crosslinking agent for crosslinking organic acids. The cross-linking experiment method is as follows:
[0040]Slowly add a polymer thickener to the mixed solution of hydrochloric acid, formic acid and water stirred at a constant speed of 400-500r / min according to the proportion, the mass fraction of hydrochloric acid in the mixed solution is 15%, and the mass fraction of formic acid is 8%; the polymer thickens The dosage of the agent is 1% of the mixed liquid, and then stir at a constant speed of 600-650r / min for 30-35min, dissolve evenly and for...
Embodiment 2
[0042] Add 8g of tetraisopropyl titanate, 30g of isopropanol, and 20g of ethylene glycol into a three-necked flask equipped with a stirring and thermometer, heat to 40°C, and stir at a constant speed of 200r / min for 30min. Add 10g of serine and 3g of polyepoxysuccinic acid to the above homogeneous solution, heat to 80°C, and stir at 200r / min for 2h; the organic acid crosslinking agent is obtained.
[0043] Application of organic acid crosslinking agent for crosslinking organic acids. The cross-linking experiment method is as follows:
[0044] Slowly add a polymer thickener to the mixed solution of hydrochloric acid, formic acid and water stirred at a constant speed of 400-500r / min according to the proportion, the mass fraction of hydrochloric acid in the mixed solution is 15%, and the mass fraction of formic acid is 8%; the polymer thickens The dosage of the agent is 0.8% of the mixed liquid, and then stir at a constant speed of 600-650r / min for 30-35min, dissolve evenly and ...
Embodiment 3
[0047] Add 4g of titanium nitrate, 20g of isopropanol, and 10g of ethylene glycol into a three-necked flask equipped with a stirring and thermometer, heat to 40°C, and stir at a constant speed of 180r / min for 30min. Add 5g of aspartic acid and 2g of polyepoxysuccinic acid to the above homogeneous solution, heat to 60°C, and stir at 180r / min for 2h; the organic acid crosslinking agent is obtained.
[0048] The experimental method of cross-linking effect is as in Example 1. Add 1% of the prepared organic acid cross-linking agent to the thickening acid, and stir for 3 minutes after the addition to form an adjustable hanging jelly. to obtain organic cross-linked acids.
PUM
Property | Measurement | Unit |
---|---|---|
viscosity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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