Fluid injection treatments in subterranean formations stimulated using propellants

A method comprising:

• introducing a propellant into one or more secondary boreholes in a subterranean formation prior to igniting the propellant;
• igniting the propellant in the one or more secondary boreholes, the ignition of the propellant occurring around a circumference and along at least a portion of the length of each of the one or more secondary boreholes to cause at least a region of the subterranean formation near the one or more secondary borehole to become at least partially ruptured to form a complex fracture network in the ruptured region of the subterranean formation near the one or more secondary boreholes, wherein the complex fracture network comprises one or more secondary or tertiary fractures in the ruptured region of the subterranean formation;
• introducing a fracturing fluid into a production well bore in the subterranean formation near the ruptured region of the subterranean formation at or above a pressure sufficient to create or enhance at least one primary fracture in the subterranean formation that extends into at least a portion of the ruptured region of the subterranean formation;
• and introducing a displacement fluid into at least one injection well bore in the subterranean formation near the ruptured region of the subterranean formation, wherein the injection well further comprises one or more fractures penetrating the ruptured region of the subterranean formation.

A method comprising:

• drilling a plurality of secondary boreholes in a subterranean formation;
• introducing a propellant into each of the plurality of secondary boreholes prior to igniting the propellant;
• igniting the propellant in the plurality of secondary boreholes, the ignition of the propellant occurring along around a circumference and along at least a portion of the length of secondary boreholes at least a region of the subterranean formation near at least one of the secondary boreholes becomes at least partially ruptured to form a complex fracture network in the region of the subterranean formation near at least one of the plurality of secondary boreholes, wherein the complex fracture network comprises one or more secondary or tertiary fractures in the ruptured region of the subterranean formation;
• drilling a production well bore to penetrate the subterranean formation in or near the ruptured region of the subterranean formation;
• introducing a fracturing fluid into a production well bore at or above a pressure sufficient to create or enhance at least one primary fracture in the subterranean formation that extends into at least a portion of the ruptured region of the subterranean formation;
• producing at least a first hydrocarbon-bearing fluid from the subterranean formation through the production well bore;
• and after producing the first hydrocarbon-bearing fluid from the subterranean formation:
• drilling an injection well bore to penetrate the subterranean formation near a side of the ruptured region of the subterranean formation opposite the production well bore, introducing a fracturing fluid into the injection well bore at or above a pressure sufficient to create or enhance at least one fracture in the subterranean formation that extends into at least a portion of the ruptured region of the subterranean formation, introducing a displacement fluid into the injection well bore, and producing at least a second hydrocarbon-bearing fluid from the subterranean formation through the production well bore.