Laser drilling method and system of fossil fuel recovery
US4113036A · kind A · utility
74Cited by
8References
19Claims
0Family size
Inventor
Key dates
| Filing date | Apr 9, 1976 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Apr 9, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Underground bores are drilled through a formation from a plurality of vertical bore holes by use of laser beams to form a subsurface, three-dimensional bore passage pattern for in situ preparation of fossil fuel deposits to be recovered. A laser beam is projected vertically through an angularly adjusted tubular housing inserted into each bore hole from which a reflected drilling beam is laterally directed by an angularly adjusted reflector to form a bore passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.