Port free hydraulic unibody system and methodology for use in a well
US11821283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Sep 21, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A technique facilitates use of a liner hanger in a borehole. A port free hydraulic unibody system including an outer structure having a tubing hanger portion and a packer portion mounted about a mandrel may be constructed so as to avoid the creation of leak paths. A seal system may be employed between the mandrel and the surrounding outer structure to ensure sealing engagement therebetween. The mandrel has a port free section on the downhole side of the seal system, and this port free section is maintained during, for example, actuation of the tubing hanger portion so as to prevent formation of leak paths. An actuator may be located along the mandrel and may be configured to initiate actuation of hanger slips mounted along the tubing hanger portion. An anti-preset mechanism positioned along the mandrel works in cooperation with the actuator to prevent premature actuation of the hanger slips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.