ABSTRACT

This chapter introduces the 3D numerical modeling of zipper fractures/modified zipper fractures. The purpose of this numerical modeling is to determine the most effective operational means to perform a hydraulic injection of the zipper fracture. With reference to the numerical damage distribution solution for a given injection plan, simultaneous injection was found to obtain a significantly larger area of damage distribution than that obtained by sequential hydraulic injection. The plastic damage model is presented in Chapter 1; its parameter values, presented in

Chapter 2, are adopted in this calculation.