Forced separation device for submarine drilling machine and drilling tool
US11441359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2021 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | May 2, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/03
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A forced separation device includes a transmission shaft, a main shaft, an electromagnetic transmission mechanism, a blasting separation mechanism and a pressure-resistant cabin. A pressing cover is fastened to the upper portion of the pressure-resistant cabin. The electromagnetic transmission mechanism is provided with a driving chuck and a driven chuck. The driving chuck is connected with the transmission shaft, the driven chuck is connected with the main shaft, the pressing cover is welded with the transmission shaft, and the driven chuck is welded with the lower portion of the pressure-resistant cabin. The blasting separation mechanism is provided with explosive packages and detonators. A plurality of explosive packages are distributed between the pressing cover and the top surface of the pressure-resistant cabin, and each explosive package is connected with the corresponding detonator respectively. The pressure-resistant cabin is further internally provided with a storage battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.