Experimental Study and Modeling of the Fracture Behavior, Mechanical Properties, and Bonding Strength of Oil Well Cement

This study aimed to analyze the outcomes of stress intensity factor (KI) and new bond strength tests oil well cement (class H) with a water-to-cement ratio (w/c) 0.38. Mechanical properties paste, such as compressive flexural strengths, were tested qualified at 1, 7, 28 days curing. The relationship between elastic modulus axial strain using differential Vipulanandan p-q model for paste was obtained. 0.3 0.6 MPa.m, crack tip opening displacement (CTOD) 2.798 6.254 µm three different ratios initial notch height (a) thickness beam (d) (a/d = 0.3, 0.4, 0.5). nonlinear used stress–strain behavior curing times. bonding steel tube representing casing in borehole 0.75, 1.89, 2.59 MPa respectively.