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Self-healing cement additive
Self-healing cement additive is an environment-friendly and
intelligent hydrocarbon-responsive material. Normal production of
oil (gas) wells may be severely affected in case of cross flow or
sustained casing pressure arising from damage of cement sheath.
Embedded in cement, self-healing cement additive may be triggered
by oil or gas to ensure the integrity of the cement sheath. The
additive is also a low-modulus material which can significantly
increase resilience of cement without impacting other performance
of cement. The usage of the additive has no impact on field
construction of cementing.