Downhole tool for generating vibration in a tubular
US10829995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | May 13, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B4/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool and method for use, in which the tool includes a housing defining a first bore axially therethrough, and a valve shaft disposed in the first bore of the housing. The valve shaft defines a second bore extending axially therein and one or more openings extending radially from the second bore, the valve shaft being rotatable relative to the housing. The tool also includes a valve sleeve disposed in the housing and defining one or more openings extending radially therethrough. The valve shaft is rotatable relative to the valve sleeve, such that the one or more openings of the valve sleeve are periodically aligned and misaligned with the one or more openings of the valve sleeve as the valve shaft rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.