Downhole Methods for Forming Resin Coatings on Fracture Surfaces

A method for producing a coating on a fracture surface within a subterranean formation, comprising:

• forming a primary fracture in the subterranean formation by injecting a pad fluid into a wellbore extending into the subterranean formation;
• forming secondary fractures extending from the primary fracture and into the subterranean formation by injecting a coating fluid into the primary fracture;
• exposing nucleation surfaces on the secondary fractures to the coating fluid;
• producing a resin coating on the nucleation surfaces, wherein the resin coating contains conductive flow paths extending therethrough;
• retrieving a hydrocarbon from the subterranean formation via the conductive flow paths within the secondary fractures;
• wherein a viscosity of the pad fluid is greater than a viscosity of the coating fluid;
• wherein the viscosity of the coating fluid is in a range from about 1 cps to less than 20 cps;
• and
• wherein the coating fluid comprises a resin, a curing agent, and a surfactant.

A method for producing a coating on a fracture surface within a subterranean formation, comprising:

• injecting a coating fluid into a primary fracture within the subterranean formation to form secondary fractures in the subterranean formation, wherein the primary fracture contains a pad fluid;
• exposing nucleation surfaces on the secondary fractures to the coating fluid;
• producing a resin coating on the nucleation surfaces, wherein the resin coating contains conductive flow paths extending therethrough;
• retrieving a hydrocarbon from the subterranean formation via the conductive flow paths within the secondary fractures;
• wherein a viscosity of the pad fluid is greater than a viscosity of the coating fluid;
• wherein the coating fluid comprises a resin, a curing agent, a surfactant, an organic solvent, and a proppant;
• and
• wherein the proppant comprises micro-proppant having an average particle size in a range from about 0.1 μm to 100 μm.