OIL-BASED COMPOSITIONS FOR DISPERSING ASPHALTENES AND PARAFFINS

• US 20170198193A1
• Filed: 05/26/2015
• Published: 07/13/2017
• Est. Priority Date: 05/26/2014
• Status: Active Grant

• Current Assignee: Itzeder Alejandro Isunza Rebolledo
• Original Assignee: Itzeder Alejandro Isunza Rebolledo
• Inventors: ISUNZA REBOLLEDO, Itzeder Alejandro
• Granted Patent: US 10,557,077 B2
• Time in Patent Office: Days
• CPC Class Codes: C09K 2208/10 Nanoparticle-containing well treatment fluids
• CPC Class Codes: C09K 8/52 Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
• CPC Class Codes: C09K 8/524 organic depositions, e.g. paraffins or asphaltenes

Abstract

The present invention consists of oil-based compositions for dispersing asphaltenes and paraffins in ducts and equipment employed in the field of oil production, transporting, processing and storing. Said compositions are easy to formulate and they further are environmentally friendly as they are biodegradable and “green” products. The compositions comprise a non-polar solvent and bismuth nanoparticles, and can optionally further comprise a compound in the terpenes or terpenoids family and an organic acid.

Claims

1. An oil based composition, comprising a non-polar solvent selected from a fatty acid methyl ester and bismuth nanoparticles.

2. The composition according to claim 1, comprising a compound in the terpenes or terpenoids family and an organic acid.

3. The composition according to claim 1, comprising from 10 to 99.99% of the non-polar solvent, and from 0.01 to 10.0 wt % of the bismuth nanoparticles.

4. The composition according to claim 3, comprising from 90 to 99 wt % of the non-polar solvent, and from 0.01 to 1.0 wt % of the bismuth nanoparticles.

5. The composition according to claim 4, comprising from 95 to 99 wt % of the non-polar solvent.

6. The composition according to claim 2, comprising from 0 to 50 wt % of the compound in the terpenes or terpenoids family, and from 0 to 20 wt % of the organic acid.

7. The composition according to claim 6, comprising from 0.5 to 10 wt % of the compound in the terpenes or terpenoids family, and from 0.5 to 10 wt % of the organic acid.

8. The composition according to claim 7, comprising from 0.5 to 5 wt % of the compound in the terpenes or terpenoids family, and from 0.5 to 5 wt % of the organic acid.

9. The composition according to claim 1, wherein the fatty acid methyl ester is selected from the group comprising corn oil methyl ester, rapeseed oil methyl ester, oleic acid methyl ester, fatty-acids medium and large size chain-triglyceride methyl esters and mixtures thereof.

10. The composition according to claim 9, wherein the fatty acid methyl ester is corn oil methyl ester.

11. The composition according to claim 1, wherein the bismuth nanoparticles are selected from the group comprising nanodust, nanowire, nanolines, nanotubes and any bismuth nanostructure.

12. The composition according to claim 1, wherein the bismuth nanoparticles are selected from the group comprising metal bismuth, bismuth oxide, bismuth sulfur, bismuth carbonate, and mixtures thereof.

13. The composition according to claim 1, wherein the bismuth nanoparticles have a particle size between 5 nm and 200 nm.

14. The composition according to claim 13, wherein the bismuth nanoparticles have a particle size between 20 nm and 100 nm.

15. The composition according to claim 1, wherein the bismuth nanoparticles can also be modified on their surface or functionalized with functional groups selected from saturated or unsaturated lineal, branched, cyclic C1-C20 carboxylic acids, salts thereof and combinations thereof;

amides, amines, triglycerides, polymers, and salts thereof;

aldehydes, ketones;

anionic, cationic, zwitterionic and non-ionic surfactants;

mercapto groups, thiols, ethers, terpenes, terpenoids;

essential oils; and

combinations thereof; and

saturated or unsaturated straight, branched and cyclic sulfonated acids, salts thereof and combinations thereof.

16. The composition according to claim 2, wherein the compound in the terpene or terpenoid family is selected from the group comprising monoterpenes, sesquiterpenes, diterpenes, triterpenes, tetraterpenes, polyterpenes, and mixtures thereof.

17. The composition according to claim 16, wherein the compound in the terpene or terpenoid family is selected from the group comprising menthol, pinene, camphor, geraniol, D-limonene, L-limonene, dipentene, myrcene, terpinene, squalene, carotene, orange terpenes, cinnamic aldehyde and long chain aldehydes, and mixtures thereof.

18. The composition according to claim 17, wherein the compound in the terpene or terpenoid family is selected from the group comprising D-limonene, orange terpenes, cinnamic aldehyde, long chains aldehydes, and mixtures thereof.

19. The composition according to claim 2, wherein the organic acid is selected from the group comprising sulfonic acids and salts thereof;

carboxylic acids and salts thereof;

sulfonated acids; and

mixtures thereof.

20. The composition according to claim 19, wherein the organic acid is selected from the group comprising dodecilbenzenesulfonic acid, C₆-C₁₈ sulfonated acids, and mixtures thereof.

21. The composition according to claim 20, wherein the organic acid is dodecilbenzenesulfonic acid.

22. The composition according to claim 1, comprising surfactants selected from the group comprising non-ionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and mixtures thereof.

23. The composition according to claim 22, wherein the non-ionic surfactants are selected from the group comprising alkyl polyglicosides, sorbitan esters, methyl glucoside esters, ethoxylated amines, ethoxylated diamines, polyglicerol esters, polysorbates, alkyl ethoxylates, and mixtures thereof.

24. The composition according to claim 22, wherein the anionic surfactants are selected from the group comprising alkyl ether sulfonates, docusates, alkyl benzene sulfonates, alkyl sulfonates, alkyl aryl sulfonates, straight or branched alkyl ether sulfates, straight or branched alkyl ether sulfonates, polypropoxylated alcohol sulfates, alkyl bisulfonates, alkyl bisulfates, and mixtures thereof.

25. The composition according to claim 22, wherein the cationic surfactants are selected from the group comprising methyl arginine esters, alkanolamines, alkylenediamides, alkyl trimethyl ammonium salts, and mixtures thereof.

26. The composition according to claim 23, wherein the surfactant is selected preferably from polysorbates;

more preferably polyoxyethylene (20)sorbitanmonooleate.

27. The composition according to claim 1, wherein the composition is formulated as an oil/water or water/oil emulsion.