Fracturing, multiple fracturing and re-fracturing often create peak loads for well design. Identification of areas within new or older wells that may be damaged by single or cyclic fracturing stimulations are the scope of this presentation. The discussion will center on stresses created by stimulations and potential damage to the well that would remove the well from candidate selection as well as methods of repair or protection that could allow stimulation. Specific subjects include common areas of damage within gas and oil wells and common types of damages including corrosion, wear, fatigue and erosion. Investigation methods include pressure testing, cement evaluation tools (CET), cement and stimulation pump charts, downhole imaging devices (cameras, calipers, electrical logging tools), and other approaches are also discussed.
