... impact pressure increased reflected, absorbed and transmitted energies, while the transmitted energy ratio remained comparatively stable. Fragment size decreased with increasing impact pressure, reaching a minimum average size of 27 mm for specimens treated with sodium chloride at 300°C and 0.5 MPa. SEM...

... reserved 2023 citric acid composite materials energy hydrotalcite oil-well cement sustained release Cementing is the key to the safe development of oil and gas resources. In this process, cement slurry is injected into the annular space between a casing and formation or between casings...