Multi-lateral re-entry guide and method of use
US9476285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2013 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jan 3, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool for use in a multilateral wellbore includes a guide member on one end that selectively projects into a designated wellbore, where the designated wellbore can be a motherbore or a lateral wellbore. Pistons are set radially in a body of the tool that selectively push against an end of the guide member to pivot it into a designated orientation to guide the tool into the designated wellbore. The pistons are hydraulically actuated when probes that are on sides of the tool body extend outward into contact with a lateral wellbore. The probes block hydraulic flow when retracted, but when deployed outward they allow fluid communication to push the pistons against the guide member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.