Degradable polymeric material

Patent metadata

Field	Value
Publication number	US-10240022-B2
Application number	US-201615274592-A
Country	US
Kind code	B2
Filing date	Sep 23, 2016
Priority date	Sep 23, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A component can include a degradable polymeric material that includes a thermoplastic elastomeric matrix and alloy particles disposed at least in part within the matrix where the alloy particles include aluminum and one or more metals selected from a group of alkali metals, alkaline earth metals, group 12 transition metals, and basic metals having an atomic number equal to or greater than 31.

First claim

What is claimed is:

1. A component comprising:
a degradable polymeric material that comprises a thermoplastic elastomeric matrix and alloy particles disposed at least in part within the matrix wherein the alloy particles comprise aluminum and one or more basic metals having an atomic number equal to or greater than 31,
wherein the degradable polymeric material comprises a percent crystallinity of at least approximately 20 percent.

2. The component of claim 1 wherein the degradable polymeric material degrades upon exposure to water.

3. The component of claim 1 wherein the degradable polymeric material comprises a hydrolyzable thermoplastic polyester material.

4. The component of claim 1 wherein the thermoplastic elastomeric matrix comprises a thermoplastic polyester material.

5. The component of claim 1 wherein the alloy particles comprise less than approximately 50 percent by weight of the degradable polymeric material.

6. The component of claim 1 wherein the one or more metals comprise gallium.

7. The component of claim 1 wherein, at a temperature of approximately 22.5 degrees C., the degradable polymeric material comprises a storage modulus that is at least 600 MPa.

8. A component comprising:
a degradable polymeric material that comprises a thermoplastic elastomeric matrix and alloy particles disposed at least in part within the matrix wherein the alloy particles comprise aluminum and one or more basic metals having an atomic number equal to or greater than 31,
wherein, at a temperature of approximately 100 degrees C., the degradable polymeric material comprises a flexural modulus that is at least 30 MPa.

9. The component of claim 1 comprising a structural component of a bore tool.

10. The component of claim 1 comprising a joint.

11. A method comprising:
forming a degradable polymeric material wherein the forming comprises compounding a composite of a thermoplastic elastomeric material that comprises alloy particles that comprise aluminum and one or more basic metals having an atomic number equal to or greater than 31,
wherein the degradable polymeric material comprises a percent crystallinity of at least approximately 20 percent.

12. The method of claim 11 wherein the one or more metals comprise gallium.

13. The method of claim 11 wherein the forming comprises shaping a component of a bore tool.

14. The method of claim 11 wherein the forming comprises forming pellets.

15. The method of claim 11 comprising exposing the degradable polymeric material to water and degrading the thermoplastic elastomeric material and degrading the alloy particles.

16. The method of claim 11 wherein the compounding comprises reactive compounding.

17. A bore tool comprising:
a degradable polymeric material that comprises a thermoplastic elastomeric matrix and alloy particles disposed at least in part within the matrix wherein the alloy particles comprise aluminum and gallium; and
a joint that is made at least in part from the degradable polymeric material.

18. The bore tool of claim 17 comprising a member that is made at least in part from the degradable polymeric material wherein the member is in contact with a component of the bore tool.

Assignees

• Schlumberger Technology Corp

Inventors

• Roy Indranil
• Zhu Shitong S
• Amarante Miranda

Classifications

• E21B43/10

  Setting of casings, screens, liners {or the like} in wells · CPC title

• E21B43/14

  Obtaining from a multiple-zone well · CPC title

• E21B33/134

  Bridging plugs · CPC title

• E21B33/12

  Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title

• E21B43/26

  by forming crevices or fractures · CPC title