UltraHib Shale Inhibitor Provides Excellent Shale Inhibition | SLB

UltraHib

Shale inhibitor

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UltraHib™ shale inhibitor is an essential component of the UltraDril Plus™ premium-performance aqueous drilling fluid system. A liquid polyamine, it effectively inhibits shale or gumbo clays from hydrating while minimizing the potential for bit balling. UltraHib shale inhibitor enhances drilling performance by preventing water absorption by clays, reducing cuttings dispersion, and minimizing risks related to BHA and bit balling. This shale inhibitor acts as a clay hydration suppressant by intercalating and reducing the space between clay platelets so that water molecules will not penetrate and cause shale swelling. In addition to providing outstanding shale inhibition, UltraHib shale inhibitor minimizes dilution rates.

Onshore and offshore drilling

 

Improving drilling performance and wellbore stability

  • Able to tolerate common contaminants including cement, hard water, CO2, drill solids, and crude oil
  • Can provide a buffered pH in the 9.0–10.0 range, eliminating any need for additions of caustic soda or potassium hydroxide
  • Adds easily to the mud system without adverse effects on viscosity and filtration properties

 

Typical Physical Properties
Physical appearance Clear liquid
Specific gravity at 25 degC 1.0–1.075
pH (5% solutions) 9.2–10.2
All specifications are subject to change without notice. 

 

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