Member for hydrocarbon resource collection downhole tool
US-2016108696-A1 · Apr 21, 2016 · US
Molded product having effective thickness of 1 mm or more and containing aliphatic polyester resin, and downhole tool member for hydrocarbon resource recovery
US9926764B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9926764-B2 |
| Application number | US-201515118210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2015 |
| Priority date | Mar 11, 2014 |
| Publication date | Mar 27, 2018 |
| Grant date | Mar 27, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Described are a molded product having an effective thickness of 1 mm or more, the molded product being formed from an aliphatic polyester resin composition containing from 1 to 30 parts by mass of a carboxylic acid anhydride and preferably further containing from 1 to 50 parts by mass of at least one type of a short fiber reinforcing material, a thermoplastic elastomer, or an acrylic rubber core-shell polymer per 100 parts by mass of an aliphatic polyester resin containing not less than 50 mass % of a polyglycolic acid resin, the effective thickness being 1 mm or more; a downhole tool for hydrocarbon resource recovery formed from the molded product having an effective thickness of 1 mm or more; an aliphatic polyester resin composition for the downhole tool member for hydrocarbon resource recovery; and a well drilling method.
First claim
Opening claim text (preview).
The invention claimed is: 1. A downhole tool member for hydrocarbon resource recovery comprising a molded product; wherein the molded product is formed from an aliphatic polyester resin composition containing an aliphatic polyester resin containing not less than 50 mass % of a polyglycolic acid resin and from 1 to 30 parts by mass of a carboxylic acid anhydride per 100 parts by mass of the aliphatic polyester resin, wherein an effective thickness of the molded product is 1 mm to 1,000 mm, and wherein the carboxylic acid anhydride is at least one selected from the group consisting of an aliphatic monocarboxylic acid anhydride, an aromatic dicarboxylic acid anhydride, an aromatic tricarboxylic acid anhydride, an alicyclic dicarboxylic acid anhydride, an aliphatic tetracarboxylic dianhydride, and an aromatic tetracarboxylic dianhydride. 2. The downhole tool member for hydrocarbon resource recovery according to claim 1 , wherein the downhole tool member is at least one selected from the group consisting of an annular member, a ball, a ball seat, and a screw.
Assignees
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Classifications
Additives being defined by their diameter · CPC title
Solid spheres · CPC title
- E21B33/12Primary
Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title
macromolecular compounds · CPC title
Additives defined by their aspect ratio · CPC title
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- What does patent US9926764B2 cover?
- Described are a molded product having an effective thickness of 1 mm or more, the molded product being formed from an aliphatic polyester resin composition containing from 1 to 30 parts by mass of a carboxylic acid anhydride and preferably further containing from 1 to 50 parts by mass of at least one type of a short fiber reinforcing material, a thermoplastic elastomer, or an acrylic rubber cor…
- Who is the assignee on this patent?
- Kureha Corp
- What technology area does this patent fall under?
- Primary CPC classification E21B33/12. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 27 2018 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).