Premature screenouts druing proppant placement have often interfered with fracturing treatments of cased horizontal wells.Fractures and tortuosities are believed to cause reduced fracture widths,which in turn are believed to be the primary causes of screenouts.No one cna be certain which (or if either) of these two phenomena is the primary cause of screenout.This paper investigates a theory that could a furnish third factor causing screenouts,even after t5reatment engineers take extreme precautions to avoid tortuosities and multiple fractures.This investigation flucses on the complex inteaction of hte fracturing fluid flow and hte mechanics of the fracture using finite element analysis.
展开▼
