E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/2
E21B 43/25 (2006.01) E21B 43/247 (2006.01) E21B 47/10 (2006.01)
Patent
CA 1081606
ABSTRACT OF THE DISCLOSURE 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.
294708
Johnson Douglas S. Q.c.
Preussag Aktiengesellschaft
LandOfFree
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