Complex Fracture Network in Shale Gas Reservoir Derived From Microseismic Data

Microseismic monitoring is a commonly used technique in characterizing hydraulic fractures. Fracture-network reconstruction remains challenging, however, because of the heterogeneity and complex stress fields in shale gas reservoirs. An energy-based 3D fracture-reconstruction method (EFR3D) is proposed to derive the complex fracture network from microseismic data in a shale gas reservoir. The proposed method has good adaptability and high accuracy in various fracture configurations.

Introduction

Because the location of microseismic data has a closely related spatial and temporal relationship with fractures, reconstructing fractures directly from microseismic data has become an effective method of identifying fracture networks.