Additive for hydraulic compositions, and hydraulic composition using same
US-2024199490-A1 · Jun 20, 2024 · US
Self-adaptive cements
US9222011B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9222011-B2 |
| Application number | US-201414320464-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 30, 2014 |
| Priority date | Feb 11, 2011 |
| Publication date | Dec 29, 2015 |
| Grant date | Dec 29, 2015 |
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Abstract
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A self-adaptive cement formulation includes cement, water, block copolymer and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising a settable material, at least particles of an asphaltite mineral, styrene-isoprene-styrene block copolymer particles and sufficient water to form a pumpable cement slurry. 2. The composition of claim 1 , wherein the cement slurry has a viscosity which is less than or equal to 1000 mPa-s at a shear rate of 100 s −1 . 3. The composition of claim 1 , wherein the asphaltite mineral comprises…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C04B28/02Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US9222011B2 cover?
- A self-adaptive cement formulation includes cement, water, block copolymer and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the format…
- Who is the assignee on this patent?
- Schlumberger Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification C04B28/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 29 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).