Propped hydraulic fracture stimulation is widely used to improve hydrocarbons production by oil wells. However, during the production phase of the well, or even still during the clean-up period, part of injected granular material (proppant) can be carried to surface. This can lead to operational problems and reduction of the well productivity. More critically, proppant flowback can cause total loss of fracture conductivity. This paper presents a computational system for the prediction of proppant flowback occurrence by hydraulically fractured wells. A simple and dynamic tool with graphical interface is developed, that allows the user to analyze the conditions of proppant production for given field data and evaluate the sensitivity of the stability of the propped fracture to the design variables. Some empirical and theoretical models available in the literature are incorporated to the system. This analysis is indicated for the attainment of optimal projects once it identifies the governing variables and allows a better choice of values for these variables. The computational system is object-oriented on the basis of a Model-View-Controller architecture (MVC). The MVC splits the responsibilities of the system in three parts: the model, that contains all data and code logic; the view, that supplies the visual presentation for the model; the controller, that defines the behavior of the system sending the user input to the model. This architecture results in a reliable, robust, efficient and well organized system. The programming language Java was adopted for its development.
|Título de la publicación alojada||Proceedings of the XXVI Iberian Latin-American Congress on Computational Methods in Engineering – CILAMCE 2005|
|Estado||Publicada - 19 oct. 2005|