Downhole gun tube extension
US11619119B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A gun-tube extension has (1) a body portion, (2) a first end configured to connect to an end cap of a gun tube, and (3) a second end configured to be connected to a sub-assembly. The gun-tube extension may rotate either by the operation of gravity on weights or by a motor. The gun-tube extension may include an orientation-detection device, such as an accelerometer, which may be part of an addressable switch. A ground for a gun tube or gun-tube extension may include a bow spring attached to and in electrical communication with the gun tube housing or the gun-tube extension housing. An end cap may include indexing indicia to orient a gun tube to a desired rotational position and/or may be structured to fit different diameter gun tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.