Deactivation and activation of permeability modifiers for use in subterranean formation operations
US-2016369160-A1 · Dec 22, 2016 · US
Methods for strengthening smectite shale in highwall mines
US9222012B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9222012-B2 |
| Application number | US-201313873471-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 30, 2013 |
| Priority date | Apr 30, 2013 |
| Publication date | Dec 29, 2015 |
| Grant date | Dec 29, 2015 |
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Abstract
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Stabilizing smectite shale may include treating a smectite shale in a subsurface formation with a dewatering fluid so as to yield a stabilized smectite shale, the dewatering fluid comprising an aqueous base fluid and a dewatering additive. In some instances, at least a portion of a highwall in a highwall mine may be formed at a highwall mine site comprising stabilized smectite shale.
First claim
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The invention claimed is: 1. A method comprising: treating a highwall in a highwall mine, the highwall comprising a smectite shale, with a dewatering fluid so as to yield a stabilized smectite shale, wherein the dewatering fluid comprises an aqueous base fluid and a dewatering additive that comprises potassium citrate and potassium nitrate each independently in a concentration of about 0.5% to about 5% by weight of the aqueous base fluid. 2. The method of cl…
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- What does patent US9222012B2 cover?
- Stabilizing smectite shale may include treating a smectite shale in a subsurface formation with a dewatering fluid so as to yield a stabilized smectite shale, the dewatering fluid comprising an aqueous base fluid and a dewatering additive. In some instances, at least a portion of a highwall in a highwall mine may be formed at a highwall mine site comprising stabilized smectite shale.
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K8/56. 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).