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Reduced Portland cement systems for lower carbon emissions

Most traditional oil well slurries contain a high percentage of Portland cement. Manufacturing Portland cement can produce a large amount of CO₂. To help lower carbon emissions associated with cement slurries, Halliburton engineered cement systems that use less Portland cement while maintaining barrier integrity.

Our low carbon emission cement portfolio includes the NeoCem™, NeoCem™ E+, and EnviraCem™ systems. Each system lowers Portland cement content compared to conventional blends. This technology helps customers reduce their well cementing carbon baselines and improve wellbore performance.

NeoCem™ system

Up to 50% reduction in mass of Portland cement of the blend.

NeoCem™ E+ system

50%-70% reduction in mass of Portland cement of the blend.

EnviraCem™ system

70% or greater reduction in mass of Portland cement of the blend.

Supplementary cementitious materials provide improved mechanical properties

NeoCem™, NeoCem™ E+, and EnviraCem™ systems combine specialized materials with Portland cement to create high-performance slurries that are engineered with Halliburton's innovative tailoring process.

Lower density, higher compressive strength - Our reduced-Portland systems demonstrate a higher compressive strength-to-Young’s modulus (CS/YM) ratio than traditional high-density cements. The lower density of NeoCem, NeoCem E+, and EnviraCem slurries helps manage equivalent circulating densities (ECDs) to reduce the risk of lost circulation.

Increased ductility - Our low carbon cement systems withstand constant pressure and temperature changes better than traditional cement. This helps seal zones over the life of the well to provide long-term zonal isolation.

Reduced permeability - A cement sheath with low permeability provides more resistance to corrosive fluids and gases downhole. Permeability testing of four different density EnviraCem systems resulted in ranges from 0.01 to 0.42 µD. This range is exponentially lower than 0.1 mD or gas tight permeability. 

Compressive strength testing equipment
Our reduced-Portland cement systems provide reliable performance under extreme downhole pressure and temperature fluctuations.
Permeability testing equipment
Low-permeability cement sheaths improve well integrity by resisting corrosive fluids and gases in downhole environments.

Lower carbon cement uses locally sourced materials

Our innovative approach to design reduced Portland systems incorporates locally sourced, natural, and recycled materials. The reduced dependence on Portland cement enables flexibility with industry supply chain challenges and delivers a more sustainable barrier solution. 

SPE Tech Talk: Reduced Portland, high-performance systems

Learn how the Halliburton reduced Portland systems can provide improved barrier performance and help operators lower carbon emission baselines.

SPE Tech Talk

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SPE Tech Talk
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