Method and apparatus for generating seismic pulses to map subterranean fractures

摘要: The methods described are for determining distribution, orientation and dimensions of networks hydraulically-induced fractures within a subterranean formation containing fluids. Micro-seismic events generated by particles introduced into the which capable explosive or chemical reaction. In one method, treated proppant having reactive coating is positioned in during fracturing introduced. another core non-reactive react upon removal coating, such as dissolving, reaction with particle. waves micro-seismic used to map fracture space.