... pressure swings can cause plastic deformation to coals, rapid two-phase flow in the near-wellbore region, fines production and/or wellbore break out as well as the associated premature failure of mechanical lift systems. The high-density compressed natural gas (HDCNG) well unloading system coupled...

... were tested in axial compression (zero stress boundary condition) to measure the intact stress-strain behaviour and calculate the intact Young’s Modulus and three vertically printed specimens with zero, one and two specimens were tested in isotropic stress conditions to measure bulk modulus (inverse...