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Oilfield chemistry
INTRON shaleGly
Glycol shale inhibition
Cloud-point-glycol selection for shale inhibition in water-based drilling fluids.
How it is used
Glycol systems are used to support shale control and drilling-fluid lubricity. Cloud-point selection depends on salinity and temperature. The fluid may also contain salts and polyamines, so the complete mud system should be evaluated.
Application areas
- Water-based drilling fluids
- Shale-inhibition programmes
- Mud systems requiring glycol-based lubricity support
Formulation considerations
Alkylene glycols and polyglycols offer low-, medium- and high-cloud-point approaches. Select the grade for the actual salinity and temperature.
What we need to select a grade
- Water salinity and mud composition
- Expected temperature profile and required cloud-point behaviour
- Shale or cuttings information and compatibility with salts and polyamines
Product data and handling
Request the current technical data sheet and safety data sheet for the proposed grade. Confirm dosage, compatibility, handling and supply requirements before use.