A critical step in ensuring a high-strength cement bond is the removal of oily residues and filter cakes from the casing and wellbore. Our Washing Agents are specialized surfactant-based cleaners designed to displace oil-based (OBM) and water-based (WBM) drilling fluids.
By aggressively stripping oil films and converting the formation and casing surfaces to a water-wet state, these agents ensure that the cement slurry bonds directly to the substrate, significantly reducing the risk of interfacial micro-annuli and gas migration.
Efficient Oil Stripping: Rapidly emulsifies and removes oil-based mud (OBM) and synthetic-based mud (SBM) residues.
Surface Phase Inversion: Effectively converts oil-wet surfaces to water-wet, allowing for maximum cement adhesion.
Chemical Compatibility: Safe for use with all API classes of cement and compatible with common spacer fluid systems.
Non-Damaging: Formulated to clean effectively without damaging sensitive reservoir formations.
Temperature Stability: Maintains high surfactant activity even in deep-well environments with temperatures up to 180°C.
Target Wells: Highly recommended for horizontal wells, high-angle wells, and any well utilizing oil-based drilling fluids.
Usage Method: Typically added to the pre-flush or spacer fluid system. Can be used in "slug" form or as a constant concentration throughout the spacer volume.
Recommended Concentration: 1.0% – 5.0% depending on the mud type and wellbore conditions.
Standard spacers alone often cannot remove thin oil films. Our washing agents provide the mechanical and chemical "scrubbing" action required to clean the wellbore at a molecular level. This leads to a cleaner interface, better zonal isolation, and a more reliable primary cementing job.
For optimal results, combine our washing agents with our [Cementing Spacer Systems] for a complete displacement solution.
Established in 2006, Tianjin Kelioil Engineering Material and Technology Co., Ltd. is a high-tech enterprise specializing in the independent R&D and large-scale production of oilfield cementing additives.
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