Modular seal bladder for high temperature applications
US8690551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2008 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/086
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A seal section for use in a downhole submersible pumping system includes a modular seal bag assembly having a first end cap, a second end cap and a plurality of seal bags connected between the first and second end caps. Each of the first and second end caps includes a plurality of nozzles and each of the plurality of seal bags is connected to a unique pair of nozzles on the first and second end caps. The modular seal bag assembly further includes a shaft tube connected between the first and second end caps. In a second preferred embodiment, the present invention provides a seal section that includes a single seal bag connected between two opposing end caps. The seal bag is preferably seamless and fabricated from a fluoropolymer, such as perfluoroalkoxy (PFA).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.