Microwave drill bit capable of achieving fracturing of borehole wall and end of deep hard rock while drilling and use method thereof
US12188338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Apr 21, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/15
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A microwave drill bit capable of achieving fracturing of a borehole wall and end of a deep hard rock while drilling and a use method thereof are provided. The microwave drill bit comprises a microwave drill bit body, wherein a support frame front plate, a metal sleeve and a water inlet ring sequentially sleeve on the microwave drill bit body, the metal sleeve is connected with a rotary drive I mounted on the support frame front plate, the microwave drill body is connected with a microwave mode converter and a microwave splitter II respectively, the microwave mode converter and the microwave splitter II are connected with a microwave splitter I by a rectangular waveguide, the microwave splitter I is sequentially connected with a microwave rotating joint, a fixed waveguide and a microwave generator, and the microwave rotating joint is connected with a rotary drive II mounted on the support frame rear plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.