Technology Annuli may build up pressure during production. SCP caused production reduction or shut off. Well life is shorten or must be P&A. Conventional workover is very difficult to cure the SCP. For relatively low SCP or pressure comes from shallow low energy formation, ERS sealant can be pumped or squeezed into annulus. Once it crosslinks, thanks to its high cohesive and bonding strength, sealant will shut off all upcoming pressure and forms a reliable and permanent barrier to cure SCP. Designing sealant density more than annulus protection fluid density, once it enters into annulus, it will gravity fall down to atop of TOC while it get crosslinks. Application 100+ well jobs in offshore and onshore verified sealant curing SCP is reliable and safe. |