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Methods and compositions to use shape changing polymers in subterranean formations
US9725635B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9725635-B2 |
| Application number | US-201414412708-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 17, 2014 |
| Priority date | Jan 17, 2014 |
| Publication date | Aug 8, 2017 |
| Grant date | Aug 8, 2017 |
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Abstract
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A wellbore treatment fluid containing lost circulation materials and methods for using the treatment fluid, the fluid including a carrier fluid and shape changing polymer structures. The shape changing polymer structures may be folded or rolled into various cross-sectional surface area reducing configurations and are capable of reversibly extending and reversibly contracting with changes in temperature. The materials forming the shape changing polymer structures may include at least one selected from poly[ethylene-co-(vinyl acetate)], poly(ω-pentadecalactone), poly(ε-caprolactone), and copolymers thereof. A method for utilizing the treatment fluid for creation or maintenance of a well includes forming or providing the treatment fluid and introducing the treatment fluid into a borehole.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of treating a formation comprising: forming or providing a well fluid including shape changing polymer structures, wherein the shape changing polymer structures are activated by temperature and are capable of reversibly extending and reversibly contracting with changes in temperature; dispersing the shape changing polymer structures in a tank or flow stream having a carrier fluid, wherein before said dispersing the shape changing polymer str…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09K8/035Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9725635B2 cover?
- A wellbore treatment fluid containing lost circulation materials and methods for using the treatment fluid, the fluid including a carrier fluid and shape changing polymer structures. The shape changing polymer structures may be folded or rolled into various cross-sectional surface area reducing configurations and are capable of reversibly extending and reversibly contracting with changes in tem…
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K8/035. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 08 2017 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).