Wednesday, 28 July 2021, 12:15 p.m.–1:45 p.m., Houston, TX - George R. Brown Convention Center
Casing Damage and Hydraulic Fracturing: Geomechanical Perspectives
Casing damages have been found in many stimulated wells worldwide. While other mechanisms such as mechanical, thermal, and chemical can be responsible, this talk will focus on and clarify geomechanical contributions during and after hydraulic fracturing. Through case studies, key contributors to casing integrity are evaluated with varying casing properties, pipe eccentricities, cement channels, borehole breakouts, injection pressures, as well as different loading mechanics such as compression, shear, or combined. Dynamic rock changes induced by stimulation are quantified and compared to the threshold triggering casing damage.