https://www.slb.com/products-and-services/innovating-in-oil-and-gas/well-construction/well-cementing/gas-migration-control/d700-ht-gasblok-gas-migration-control
D700 HT GASBLOK Gas Migration Control Additive for High Temperatures | SLB
D700 HT GASBLOK gas migration control additive for high temperatures creates an impermeable barrier that prevents annular gas migration into the cement slurry...
gas migration controlhigh temperaturesd700ht
https://www.slb.com/products-and-services/innovating-in-oil-and-gas/well-construction/well-cementing/gas-migration-control/d400-easyblok-solid-gas-migration-control
D400 EasyBLOK Solid Gas Migration Control Cement System | SLB
D400 EasyBLOK system is a water-activated, low-molecular-weight polymer ideally suited for cold environments.
gas migration controlcement systemd400solidslb