Patent ID: 9488043
Filing Date: 2016-11-08
CPC Classification: E21B,G01V

Claim Text:
1. A method for mapping of fractures within a hydrocarbon bearing zone of a subterranean formation, the zone having a wellbore extending therethrough, the method comprising the steps of: injecting a plurality of treated proppant particles into fractures in the zone of the formation, the treated proppant particles having a reactive exterior coating; injecting a plurality of reactive particles into fractures in the zone of the formation wherein the reactive particles comprise a reactive core material encapsulated by a removable coating; causing, within the fractures, a plurality of reactions between the reactive exterior coating of the treated proppant particles and the reactive particles; creating a plurality of micro-seismic events in response to the plurality of reactions; detecting at least one of the micro-seismic events; and determining a distribution, dimension or geometry of hydraulically-induced fractures and fracture networks from at least one of the micro-seismic events.