Recirculation isolator for artificial lift and method of use
US10787873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system includes a retrievable string for use in a completion string of a well, the completion string including an electrical stator. The retrievable string is to be disposed in the completion string, the retrievable string including a rotor for receipt within the electrical stator and to rotate in response to electromagnetic fields generated by the stator, an impeller coupled to the rotor, a housing to surround the impeller, and a recirculation isolator coupled to the housing. The recirculation isolator includes a sealing element and a locking tool, where the sealing element sealingly engages with the completion string, and the locking tool positions the retrievable string in the completion string and detachably couples the retrievable string to the completion string. The locking tool includes a rotational locking feature to engage an indexing receptacle of the completion string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.