Spread crosslinker and method of water control downhole
US-9512347-B2 · Dec 6, 2016 · US
Well completion methods using gellable treatment fluids having long term thermal stability of the gelled state
US8955587B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8955587-B2 |
| Application number | US-201113297663-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2011 |
| Priority date | Nov 16, 2011 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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Gellable treatment fluids containing a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid monomer units can be used in various subterranean operations where it is necessary for the treatment fluid to remain in a gelled state for extended periods of time at high formation temperatures. Methods for treating a subterranean formation can comprise providing a treatment fluid comprising an aqueous carrier fluid, a crosslinking agent, a gel stabilizer, and a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or any salt thereof; introducing the treatment fluid into a subterranean formation; allowing the treatment fluid to form a gel in the subterranean formation; and breaking the gel after it has been in the subterranean formation for at least about one day.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: providing a treatment fluid comprising an aqueous carrier fluid, a crosslinking agent, a gel stabilizer for a crosslinked gel, and a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or any salt thereof; wherein the gel stabilizer comprises a hydroxylamine; introducing the treatment fluid into a subterranean formation; allowing the treatment fluid to form a gel i…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09K8/5083Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US8955587B2 cover?
- Gellable treatment fluids containing a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid monomer units can be used in various subterranean operations where it is necessary for the treatment fluid to remain in a gelled state for extended periods of time at high formation temperatures. Methods for treating a subterranean formation can comprise providing…
- Who is the assignee on this patent?
- Sherman John Walter, Funkhouser Gary P, Deville Jay Paul, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C09K8/5083. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 17 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).