In a fracturing treatment, vertical and lateral growth are influenced by in-situ conditions, and by the rheological properties of the fracturing fluid. The analysis of the parameters affecting the height growth of those hydraulically induced fractures is a critical issue for predicting stimulation effectiveness. Eventually, a precise control of the height growth, and preventing the fracture from penetrating into the barriers would avoid possible water or gas coning following the treatment.

The effects of the properties of the barriers, including variations in crack opening moduli, stresses, and additional stresses due to leak-off, on the rate of height growth are described. A boundary integral technique is used to evaluate the effects of treatments which impede the vertical height growth, and treatment simulations are performed with a three-dimensional fracture model. Upwards and downwards growth are proven to be impeded by use of selected prop-pants, and their effect can be characterized by the trends in pressure evolution during the treatment.

Several cases are then presented, with different strategies for height growth control and their implication on poststimulation production. When two-phase flow may occur, comparisons based on a black-oil model are made to show the effects on water-oil ratio curves.

You can access this article if you purchase or spend a download.