Thermal insulating fluids
US-9523028-B2 · Dec 20, 2016 · US
High density and high temperature emulsifier for use in an oil based drilling fluid system
US2018142134A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018142134-A1 |
| Application number | US-201815876801-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 22, 2018 |
| Priority date | Oct 14, 2015 |
| Publication date | May 24, 2018 |
| Grant date | — |
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Abstract
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An emulsifying composition for an oil based drilling fluid includes oleyl alcohol and a mixture of polymeric amides. The polymeric amides can be 1,3-dihydroxypropan-2-yl (E)-12-hydroxyoctadec-9-enoate, (9E,9′ E)-N,N′-(azanediylbis(ethane-2,1-diyl))bis(12-hydroxyoctadec-9-enamide, (E)-12-hydroxy-N,N-bis(2-((E)-12-hydroxyoctadec-9-enamido(ethyl)octadec-9-enamide, (Z)-4-(bis(2-((E)-12-hydroxyoctadec-9-enamido)ethy)amino)-4-oxobut-2-enoic acid, 1,3-dihydroxypropan-2-yl(Z)-4-(bis(2-((E)-12-hydroxyoctadec-9-enamido)ethy)amino)-4-oxobut-2-enoate, and N1,N1,N4,N4-tetrakis(2-((E)-12-hydroxyoctadec-9-enamido)ethyl)maleamide. The method of forming the emulsifying composition includes reacting a fatty oil with diethylenetriamine and then maleic acid, and adding oleyl alcohol. The high density emusifying composition is stable at high temperatures of drilling operations at greater depths in the wellbore.
First claim
Opening claim text (preview).
What is claimed is: 1 . An emulsifying composition for an oil based drilling fluid, comprising: a saturated or unsaturated, monohydroxylated or polyhydroxylated, branched or straight chain alcohol; 1,3-dihydroxypropan-2-yl (E)-12-hydroxyoctadec-9-enoate as Compound A; (9E,9′E)-N,N′-(azanediylbis(ethane-2,1-diyl))bis(12-hydroxyoctadec-9-enamide as Compound B; (E)-12-hydroxy-N,N-bis(2-((E)-12-hydroxyoctadec-9-enamido(ethyl)octadec-9-enamide as Compound C; (Z)-4-(bis(2-((E)-12-hydroxyoctadec-9-enamido)ethy)amino)-4-oxobut-2-enoic acid as Compound D; 1,3-dihydroxypropan-2-yl (Z)-4-(bis(2-((E)-12-hydroxyoctadec-9-enamido)ethy)amino)-4-oxobut-2-enoate as Compound E; and N 1 ,N 1 ,N 4 ,N 4 -tetrakis(2-((E)-12-hydroxyoctadec-9-enamido)ethyl)maleamide as Compound F; 2 . The emulsifying composition, according to claim 1 , wherein said alcohol is 10-50% by weight, said Compound A is 10-50% by weight, and said Compound B is 5-30% by weight. 3 . The emulsifying composition, according to claim 2 , wherein each of said Compound C, said Compound D, said Compound E, and said Compound F is 5-40% by weight. 4 . The emulsifying composition, according to claim 1 , wherein said alcohol is 20-30% by weight, said Compound A is 10-30% by weight, and said Compound B is 10-20% by weight. 5 . The emulsifying composition, according to claim 3 , wherein each of said Compound C, said Compound D, and said Compound E is 5-10% by weight, and said Compound F is 5-20% by weight. 6 . The emulsifying composition, according to claim 1 , being produced by reactions of a fatty oil with diethylenetriamine and then maleic acid. 7 . The emulsifying composition, according to claim 1 , wherein the said alcohol is oleyl alcohol.
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- C09K8/34Primary
Organic liquids · CPC title
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- What does patent US2018142134A1 cover?
- An emulsifying composition for an oil based drilling fluid includes oleyl alcohol and a mixture of polymeric amides. The polymeric amides can be 1,3-dihydroxypropan-2-yl (E)-12-hydroxyoctadec-9-enoate, (9E,9′ E)-N,N′-(azanediylbis(ethane-2,1-diyl))bis(12-hydroxyoctadec-9-enamide, (E)-12-hydroxy-N,N-bis(2-((E)-12-hydroxyoctadec-9-enamido(ethyl)octadec-9-enamide, (Z)-4-(bis(2-((E)-12-hydroxyoctad…
- Who is the assignee on this patent?
- Cnpc Usa Corp
- What technology area does this patent fall under?
- Primary CPC classification C09K8/34. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 24 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).