Micro proppants for far field stimulation

A well fracturing system, comprising:

• a pumping system;
• a fracturing fluid source coupled to the pumping system;
• a proppant source coupled to the pumping system to combine with the fracturing fluid source;
• and
• a micro proppant source coupled to the pumping system to combine with the fracturing fluid source and form the micro proppant in the fracturing fluid to yield a fracturing fluid mixture comprising the proppant and the micro proppant, the micro proppant smaller than the proppant.

A method, comprising:

• fracturing a low permeability subterranean zone around a well bore with a fracturing fluid to generate primary fractures that extend from the wellbore and dendritic fractures that extend from the primary fractures;
• combining a micro proppant pre-cursor with an activator to generate, in the fracturing fluid, a micro proppant of 200 mesh or smaller;
• and
• propping the primary fractures substantially with a proppant of 100 mesh or larger that is mixed into the fracturing fluid at a terranean surface;
• propping the dendritic fractures substantially with the micro proppant.

A method of fracturing a subterranean zone surrounding a well bore, comprising:

• fracturing the subterranean zone with a fracturing fluid to form near field primary fractures and far field secondary fractures;
• pumping proppant into far field fractures of the subterranean zone, the proppant comprising substantially micro proppant;
• generating the micro proppant in the fracturing fluid by hydrolyzing aluminoxane in the fracturing fluid;
• and
• propping far field fractures substantially with the micro proppant.