Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate

A method of increasing the fracture complexity in a treatment zone of a subterranean formation, wherein the subterranean formation is characterized by having a matrix permeability less than 1.0 microDarcy, the method comprising:

• pumping two or more fracturing fluids into the treatment zone at a rate and pressure above the fracture pressure of the treatment zone for a total pumping volume greater than 2 wellbore volumes, wherein:
• (a) a first fracturing fluid of the two or more fracturing fluids is pumped into the treatment zone at least before the last 2 wellbore volumes of the total pumping volume, wherein the first fracturing fluid comprises a proppant, wherein the first fracturing fluid does not include a first solid particulate;
• and
• (b) a second fracturing fluid of the two or more fracturing fluids is pumped into the treatment zone after the first fracturing fluid is pumped into the treatment zone but at least before the last 2 wellbore volumes of the total pumping volume, wherein the second fracturing fluid comprises the first solid particulate;
• wherein the first solid particulate comprises a first particle size range effective for bridging the pore throats of a proppant pack formed in the treatment zone by the proppant of the first fracturing fluid;
• and
• wherein the first solid particulate comprises a degradable material that is an anionic compounds that can bind with a multi-valent metal, wherein the degradable material comprises a water-insoluble chelating agent.

A method of increasing the fracture complexity in a treatment zone of a subterranean formation, wherein the subterranean formation is characterized by having a matrix permeability less than 1.0 microDarcy, the method comprising:

• pumping a treatment fluid including a proppant into a far-field region of the treatment zone of the subterranean formation, wherein the treatment fluid does not comprise a first solid particulate;
• pumping one or more fracturing fluids into the far-field region of the treatment zone of the subterranean formation at a rate and pressure above the fracture pressure of the treatment zone,
• wherein a first fracturing fluid of the one or more fracturing fluids comprises a first solid particulate, and wherein:
• (a) the first solid particulate comprises a first particle size range effective for bridging the pore throats of a proppant pack previously formed in the far-field region of the treatment zone;
• and
• (b) the first solid particulate comprises a degradable material that is an anionic compounds that can bind with a multi-valent metal, wherein the degradable material comprises a water-insoluble chelating agent.