
Wellbore Cleanout Products,
Scavengers & Biocide Products
At Oilfield International Services, we specialise in delivering advanced chemical and mechanical solutions for well integrity and production optimisation.
Eco-friendly Wellbore Cleaning Solutions for Versatile
Field Applications
Oilfield International Services supplies a comprehensive range of commodities and speciality dry / liquid products essential to drilling and completion operations. Our offerings include high-quality drilling additives, weighting agents, brines, and specialty fluids—sourced from trusted global manufacturers to ensure consistency and performance. Whether for wellbore stability, fluid loss control, or pressure management, our liquid and dry bulk products support safe, efficient, and cost-effective oilfield operations across diverse environments.
Product List
OIS Coding | Fluid System | Function | OIS Brand Name | Chemical Product Description |
---|---|---|---|---|
OIS WBCU 001 | Well-Bore Cleanout | Brine Viscosifier | VEN-HEC L | VEN-HEC L is a liquid viscosifier, recommended for use in non-damaging drill-in fluids and solids free completion fluid systems. |
OIS WBCU 002 | Well-Bore Cleanout | Riser/Choke/Kill/Boost Line Cleaner | DISPLACE-CLEAN RCKB | DISPLACE-CLEAN RCKB is a single stage well bore cleanup product, combining surfactant, solvent and wetting agents, specifically designed for cleaning Riser, Choke, Kill and Boost lines. |
OIS WBCU 003 | Well-Bore Cleanout | Wellbore Cleaning Surfactant | DISPLACE-CLEAN WB | DISPLACE-CLEAN WB is a single stage well bore cleanup product, combining surfactant, solvent and wetting agents to provide a one pass wellbore cleaning operation. |
OIS WBCU 004 | Well-Bore Cleanout | Solvent | VEN-SOL | VEN-SOL is a mutual solvent which has a wide range of applications, increases both the solubility of hydrocarbons and wettability in OBM fluid systems. Can be used in a stack pipe context when spotted around the area of concern. |
OIS WBCU 005 | Well-Bore Cleanout | Scavenger | VEN-SCAV H | VEN-SCAV H is a water based H2S scavenger additive which is added to a water based drilling fluid or drilling related processes, to neutralise or remove H2S which is highly toxic to human beings. |
OIS WBCU 006 | Well-Bore Cleanout | Scavenger | VEN-SCAV O | VEN-SCAV O is a water based oxygen scavenger additive which is added to a water based drilling fluid to remove dissolved oxygen which is a critical measure to prevent corrosion of metal components in the rig. |
OIS WBCU 007 | Well-Bore Cleanout | Inhibitor | VEN-COR | VEN-COR is a water based corrosion inhibitor additive which is added to a water based drilling fluid, designed to reduce, prevent or eliminate the corrosion of metal components on the rig. |
OIS WBCU 008 | Well-Bore Cleanout | Biocide | VEN-CIDE | VEN-CIDE is a water based Biocide additive, used in a variety of applications, mainly to inhibit microorganism growth and prevent bacterial degradation of the water based fluid system. |
Download the full product list here.

Oilfield International Services possesses extensive experience in drilling and completion fluids, having successfully executed numerous projects for major oil and gas operators across the globe.