The collapse strain and fracture force for shale–sandstone were being computed across various elastic modulus and Poisson’s ratios to ascertain the Harmless density window.Thickening brokers with sand were included to your well, causing the removing of considerable chunks ranging from one to 2cm, with some as significant as three–4 cm. Just a

By applying the cohesion and inner friction angle parameters derived within the JPW criterion (Desk two) on the Mohr-Coulomb design, the resultant minimum Harmless density polar plot is generated as illustrated in Figure 10. This visualization employs a chromatic development from deep blue to purple to denote rising collapse stress magnitudes withi