METHOD FOR CHECKING FRACTURE GEOMETRY FOR MICROSEISMIC EVENTS Russian patent published in 2017 - IPC E21B43/26 G06F19/00 

FIELD: measuring equipment.

SUBSTANCE: drilling site is located near a subterranean formation with a borehole drilled in it and a complex fracture network. The complex fracture network includes intrinsic fractures. The drilling site is intensified by injecting a pumped fluid with a propping agent into the complex fracture network. The method includes creating drilling site data including measurements of microseismic events of the subterranean formation, simulating a network of hydraulic fractures and a discrete fracture network for the complex fracture network based on the drilling site data, and performing a seismic moment operation. The method includes determining the actual seismic moment density based on the drilling site data and the predicted seismic moment density based on the shear and stretch components of the simulated hydraulic fracture network and checking the discrete fracture network based on the comparison of the predicted moment density and the actual moment density.

EFFECT: improved efficiency of the fracturing operation at the drilling site.

12 cl, 7 tbl, 85 dwg