Experimental Study of Hydraulic Sealability and Shear Bond Strength of Cementitious Barrier Materials

Abstract In this experimental study, two different cementitious materials, including (i) a class of expansive cement currently used for plug and abandonment (P&A) operations (ii) non-cement-based naturally occurring rock, known as geopolymer, are selected to examine the hydraulic bond strength shear strength. Clean machined steel rusty corroded were represent casing. The test samples cured at 90 °C considered bottom-hole static temperature (BHST) under elevated pressure 17.2 MPa 1 week. sealability barrier materials tested up 3.4 differential pressure. results indicated that additives in slurry preparation impact material. Additionally, provided better comparing clean same was performed by running push-out test. According present observations, no correlation found between materials. geopolymer showed lowest strength, while it highest sealability.