Wellbore debris handler for electric submersible pumps
US10578111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jul 19, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for decreasing a size of debris entering an electrical submersible pump assembly in a subterranean well with a debris handling assembly include a handler housing with an inner bore and a housing cutting profile located on an inner surface of the inner bore. A cutting blade is secured to a rotating shaft within the inner bore of the handler housing, the cutting blade being aligned with a first portion of the housing cutting profile. A mill is secured to the rotating shaft, the mill aligned with a second portion of the housing cutting profile. An annular mill space is defined by an outer surface of the mill and the inner surface of the inner bore, the annular mill space decreasing in a radial dimension in a downstream direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.