Treatment of subterranean formations
US-11685855-B2 · Jun 27, 2023 · US
Treatment of subterranean formations
US12139660B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12139660-B2 |
| Application number | US-202318310256-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 1, 2023 |
| Priority date | Oct 25, 2021 |
| Publication date | Nov 12, 2024 |
| Grant date | Nov 12, 2024 |
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- Title
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Abstract
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A method, wellbore, and pill for treating a region of a subterranean formation adjacent a wellbore zone of the wellbore, including injecting a gellable treatment composition (e.g., as the pill) through the wellbore zone into the region of the subterranean formation adjacent the wellbore zone, allowing the gellable treatment composition to form nanoparticles in-situ in the region and gel in the region via heat provided by the region to prevent or reduce flow of an unwanted fluid from the region into the wellbore zone. The gellable treatment composition may include a zwitterionic gemini surfactant (ZGS).
First claim
Opening claim text (preview).
What is claimed is: 1. A wellbore in a subterranean formation, the wellbore comprising a wellbore zone having a gel that restricts flow of fluid from the subterranean formation into the wellbore at the wellbore zone, wherein the gel comprises zwitterionic gemini surfactant and silica nanoparticles, wherein the silica nanoparticles are formed in situ from orthosilicate catalyzed by an acid. 2. The wellbore of claim 1 , wherein the zwitterionic gemini surfactant comprises: wherein n 1 =8 to 18, n 2 =3 to 6, and n 3 =3 or 4, and wherein the functional group R is a sulfonate group, a carboxylate group, an aldehyde group, or a hydroxyl group. 3. The wellbore of claim 1 , wherein the fluid comprises water or natural gas, or both. 4. The wellbore of claim 1 , wherein the gel prevents flow of fluid from the subterranean formation into the wellbore at the wellbore zone.
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Classifications
Plastering the borehole wall; Injecting into the formation · CPC title
Nanoparticle-containing well treatment fluids · CPC title
- C09K8/5086Primary
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
- C09K8/508Primary
macromolecular compounds {(C09K8/512 takes precedence)} · CPC title
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- What does patent US12139660B2 cover?
- A method, wellbore, and pill for treating a region of a subterranean formation adjacent a wellbore zone of the wellbore, including injecting a gellable treatment composition (e.g., as the pill) through the wellbore zone into the region of the subterranean formation adjacent the wellbore zone, allowing the gellable treatment composition to form nanoparticles in-situ in the region and gel in the …
- Who is the assignee on this patent?
- Saudi Arabian Oil Co, Univ King Fahd Pet & Minerals
- What technology area does this patent fall under?
- Primary CPC classification C09K8/5086. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 12 2024 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).