Process for determining the location and/or extent of rock cavities
US4158963A · kind A · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1978 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Jan 11, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/247
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The size and location of rock formation cavities are determined by placing small bodies within the cavity, altering the physical or chemical state of the bodies within the cavity and measuring the change of state of the bodies thereby providing a measurement of the location or size of the cavity. Preferably, the small bodies are detonatable bodies which upon detonation provide an acoustic indication of the size and location of the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.