  Hydraulic fracturing is one of the key technologies for reservoir stimulation
in low-permeability/unconventional oil and gas fields. In response to the high
energy consumption and greenhouse gas emissions caused by extreme flow-limiting
perforation in hydraulic fracturing, stress-coupled perforation technology has
been proposed to promote low-energy consumption and high efficiency in
artificial fracturing. Based on the stress distribution in perforation hole and
fracture propagation mechanism, a mathematical model for fracture propagation
was established based on linear elastic fracture mechanics theory. Taking into
account rock mechanical parameters, tensile effects at the crack tip, stress on
both sides of the main crack and fracturing parameters, the real-time stress
distribution and fracturing energy consumption were calculated using Monte
Carlo random method and Newton's iterative method. With the unit fracture area
energy consumption, total fracture area, and fracture uniformity as objective
functions, the number and diameter of perforation holes were fully coupled and
optimized. The developed simulator balances the calculation efficiency and
accuracy of multiple fracture propagation. The study shows that under the
condition of the same reservoir fracture volume, stress-coupled perforation
technology will reduce energy consumption by 37%. This technology has been
successfully applied to the reservoir stimulation of Fan Ye 1 well horizontal
well in Jiyang Depression, improving the energy utilization efficiency of
hydraulic fracturing and reducing carbon emissions.
