Projectile drilling system
US10557308B2 · kind B2 · utility
5Cited by
52References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D3/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hole in geologic material, such as a wellbore, may be extended by impacting the working face of the hole with high velocity projectiles. A tube may be placed within the hole, and the lower end of the tube may be sealed to prevent ingress of material from the hole into the tube. A projectile may be accelerated through the tube, such as by igniting a combustible gas mixture to impart a force to the projectile. The impact of the projectile may extend the hole. In some cases, accelerated projectiles may be used in conjunction with a drill bit to drill a wellbore or other type of hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.