Adjustable bullnose assembly for use with a wellbore deflector assembly
US9140082B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Jul 25, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellbore system includes an upper deflector arranged within a main bore and defines first and second channels that extend longitudinally therethrough. A lower deflector is arranged within the main bore and spaced from the upper deflector by a predetermined distance. The lower deflector defines a first conduit that communicates with a lower portion of the main bore and a second conduit that communicates with a lateral bore. A bullnose assembly includes a body, a bullnose tip arranged at a distal end of the body, and a sleeve member arranged about the body. The sleeve member or the bullnose tip is axially movable to vary a length of the bullnose tip, and the upper and lower deflectors direct the bullnose assembly into the lateral bore or the lower portion of the main bore based on the length of the bullnose tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.