Patent ID: 7565929
Filing Date: 2009-07-28
Classification: C09K,E21B

Abstract:
1. A degradable material assisted diversion (DMAD) method of well treatment, comprising the steps of: a) injecting a first well treatment fluid into a well penetrating a multilayer formation to propagate a hydraulic fracture in a layer of the formation; b) injecting an aqueous slurry into a well penetrating a formation, wherein a solids phase of the slurry comprises an insoluble degradable material; c) consolidating the degradable material to form a plug in a perforation, fracture, wellbore or combination thereof in the well; d) diverting with the plug while injecting a second well treatment fluid into the well to propagate a subsequent hydraulic fracture in another layer of the formation; and e) degrading the consolidated degradable material to remove the plug and restore permeability to the perforation, fracture, wellbore or combination thereof.