Compositions and methods for treating subterranean formations
US-2016032176-A1 · Feb 4, 2016 · US
Modified acid compositions as alternatives to conventional acids in the oil and gas industry
US10822535B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10822535-B2 |
| Application number | US-201815992951-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2018 |
| Priority date | Jun 2, 2017 |
| Publication date | Nov 3, 2020 |
| Grant date | Nov 3, 2020 |
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- Title
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Abstract
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An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
First claim
Opening claim text (preview).
The invention claimed is: 1. An aqueous modified acid composition comprising: Hydrochloric acid and monoethanolamine in a molar ratio ranging from 3:1 to not more than 15:1 where the pH of the composition is less than 1 and the composition is stable at temperatures of up to 190° C. 2. The aqueous modified acid composition according to claim 1 , where the hydrochloric acid and monoethanolamine are present in a molar ratio ranging from 3:1 to not more than 10:1. 3. The aqueous modified acid composition according to claim 1 , where the hydrochloric acid and monoethanolamine in a molar ratio ranging from 3:1 to not more than 7:1. 4. The aqueous modified acid composition according to claim 1 , where the hydrochloric acid and monoethanolamine in a molar ratio ranging from 3:1 to not more than 4.1:1.
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Classifications
Acids · CPC title
involving the removal of part of the materials of the treated articles, e.g. etching · CPC title
Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites · CPC title
Anticorrosion additives · CPC title
by neutralisation; pH adjustment (for degassing C02F1/20; using ion-exchange C02F1/42; for flocculation or precipitation of suspended impurities C02F1/52; for removing dissolved compounds C02F1/58) · CPC title
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- What does patent US10822535B2 cover?
- An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
- Who is the assignee on this patent?
- Fluid Energy Group Ltd
- What technology area does this patent fall under?
- Primary CPC classification A23C21/00. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 03 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).