Method for reducing permeability of downhole motor protector bags

Patent metadata

Field	Value
Publication number	US-9470216-B2
Application number	US-201314135366-A
Country	US
Kind code	B2
Filing date	Dec 19, 2013
Priority date	Nov 28, 2012
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

A method for applying a metalized polymer film to a seal bag for use in a downhole submersible pumping system includes the steps of applying a metal layer to a polymer layer, applying an adhesive layer to the polymer layer, and rolling the adhesive layer onto a substrate of the seal bag. The method may also include the steps of rotating a first roller, which is located above the polymer layer of the metalized polymer film, and rotating a second roller, which is located on an interior surface of the substrate of the seal bag, in the opposite direction of the first roller. Also disclosed is a downhole pumping system that incorporates a seal bag manufactured from these techniques.

First claim

What is claimed is:

1. A method for applying a metalized polymer film to a seal bag for use in a downhole submersible pumping system, wherein the seal bag is manufactured from a substrate, the method comprising the steps of:
applying a metal layer to a first planar side of a polymer layer;
applying an adhesive layer to a second planar side of the polymer layer; and
rolling the adhesive layer onto the substrate of the seal bag.

2. The method of claim 1 , wherein the metal layer comprises a metal selected from the group consisting of titanium, stainless steel, nickel, aluminum, chrome, silver and gold.

3. The method of claim 1 , wherein the metal layer comprises at least two metals selected from the group consisting of titanium, stainless steel, nickel, aluminum, chrome, silver and gold.

4. The method of claim 1 , wherein the polymer layer comprises a polytetrafluoroethylene polymer in a thickness ranging from 0.001 inches to about 0.005 inches.

5. The method of claim 1 , further comprising the steps of:
rotating a first roller, wherein the first roller is located above the metal layer of the metalized polymer film; and
rotating a second roller in the opposite direction of the first roller, wherein the second roller is located on an interior surface of the substrate of the seal bag.

6. The method of claim 5 , further comprising the step of applying pressure with the first roller and the second roller to help the adhesive layer adhere to the substrate.

7. The method of claim 5 , further comprising the step of applying heat to the first roller and the second roller to help the adhesive layer adhere to the substrate.

8. The method of claim 1 , wherein the substrate has an interior and an exterior and the step of rolling the adhesive layer onto the substrate of the seal bag further comprises rolling the adhesive layer onto the exterior of the substrate.

9. The method of claim 1 , wherein the substrate has an interior and an exterior and the step of rolling the adhesive layer onto the substrate of the seal bag further comprises rolling the adhesive layer onto the exterior of the substrate and then turning the substrate inside-out.

10. A method for applying a metalized polymer film to a seal bag for use in a downhole submersible pumping system, the method comprising the steps of:
applying a metal layer to a polymer layer;
applying an adhesive layer to the metal layer; and
rolling the adhesive layer onto a substrate of the seal bag.

11. The method of claim 10 , wherein the metal layer comprises a metal selected from the group consisting of titanium, stainless steel, nickel, aluminum, chrome, silver and gold.

12. The method of claim 10 , wherein the metal layer comprises at least two metals selected from the group consisting of titanium, stainless steel, nickel, aluminum, chrome, silver and gold.

13. The method of claim 10 , wherein the polymer layer comprises a polytetrafluoroethylene polymer in a thickness ranging from 0.001 inches to about 0.005 inches.

14. The method of claim 10 , further comprising the steps of:
rotating a first roller, wherein the first roller is located above the polymer layer of the metalized polymer film; and
rotating a second roller, in the opposite direction of the first roller, wherein the second roller is located on an interior surface of the substrate of the seal bag.

15. The method of claim 14 , further comprising the step of applying pressure with the first roller and the second roller to help the adhesive layer adhere to the substrate.

16. The method of claim 14 , further comprising the step of applying heat to the first roller and the second roller to help the adhesive layer adhere to the substrate.

Assignees

• Ge Oil & Gas Esp Inc

Inventors

• Reeves Brian
• Wang Chengbao
• Howell Steven Alan

Classifications

• F04B53/16

  Casings; Cylinders; Cylinder liners or heads; Fluid connections · CPC title

• F04B47/06

  having motor-pump units situated at great depth · CPC title

• F04B17/03 Primary

  driven by electric motors · CPC title