Experimental study of shear and hydraulic bonding strength between casing and cement under complex temperature and pressure conditions.

ABSTRACT: The cement sheath plays a vital role in preventing gas channelling. It is important to understand the interfacial bonding between the casing and cement sheath when the downhole temperature and pressure change. This paper demonstrates the results of an experimental study to investigate the effect of high temperature and high pressure and their variations on the cement sheath interfacial bonding strength (CSIBS). An experimental device was developed that is used to test the shear and hydraulic bonding strength with the method of uniaxial compression and gas channelling. The results show that both temperature and pressure have a significant influence on the CSIBS. As the curing temperature increases with a constant curing time or as the curing time increases with a constant curing temperature

SUBMITTER: Yang H 

PROVIDER: S-EPMC7211851 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature