High expansion wedge
US11506010B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Mar 26, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Sep 18, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling wedge that has, in addition to a normal connector rod, two wings that extend from the sides of the wedge. These wings are angular members that fill much of the space in the larger casing around the wedge. These wings prevent a milling assembly from sliding past the wedge or from moving off to the side, where an exit through the pipe or casing in the wrong place can occur. Instead, the wings help to keep the milling assembly in the proper position on the tray of the wedge to ensure that the milling assembly reaches the proper exit point in the casing. The wings are retracted when the HEW is deployed through the narrower pipe. Once the HEW is properly positioned, the guide cone is extended and the wings are deployed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.