GMC
Gas Migration Control Additives
Functional class of additives used to reduce gas channeling during cement transition and early hydration in gas-bearing zones.
Application
Primary cementing across potential gas flow zones where slurry design includes gas migration control chemistry matched to BHST and gas composition.
Technical characteristics (quality certificate)
Typical values as stated on a mill quality certificate (passport) for a standard commercial grade. Actual lot values are confirmed in the COA / TDS for the selected manufacturer.
Cement class compatibility
API Class A–H (per additive type)
API 10A / ISO 10426-1
Gas migration control
Per additive system design
API RP 10B-2
Typical BHCT range
Per additive grade
API RP 10B-2
Reference profile for orientation. For each supply we confirm grade, origin and certificate data against your specification, well conditions and delivery requirements.
Typical functions
- Transition-time gas control
- Slurry gel structure support
- Part of engineered gas-zone designs
Product information
- Chemical name
- Gas migration control additive for cement slurries
- Formula / class
- GMC
- Appearance
- Liquid or powder — product specific.
- Packaging
- Bags or drums.
Often used with tailored slurry density, spacer and placement practice. Send zone data and incumbent additive TDS if available.
In this category
CTR
Cement Retarders
Additives that extend thickening time of oil-well cement slurries. Chemistry class must match temperature, cement type and slurry design.
Open product →FLA
Cement Fluid-Loss Additives
Additives that reduce API fluid loss of oil-well cement slurries to protect formation and maintain slurry properties during placement.
Open product →DSP
Cement Dispersants
Additives that reduce slurry viscosity and improve pumpability of oil-well cement at low water-cement ratios.
Open product →