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Published: 09/01/2015
VG-69 organophilic clay is a viscosifier and gelling agent used in VERSA oil-based and NOVA synthetic-based systems. This amine-treated bentonite is used to increase carrying capacity and suspension properties, providing support for weighting agents and improved cuttings removal. VG-69 viscosifier also aids in filtercake formation and filtration control.
VG-69 viscosifier is proven effective in drilling, coring, workover and Typical concentrations range from 2 to 10 lbm/bbl [5.7 to 28.5 kg/m3] for most drilling fluid applications, depending on the base fluid and system requirements. Mineral oils generally require higher concentrations than diesel oils. VG-69 viscosifier will not fully yield by the shear and temperature exposure in a mixing plant or mud pit. Care should be taken not to overtreat with VG-69 viscosifier until the fluid has actually circulated through the well. For system maintenance, VG-69 viscosifier should be added as needed to maintain the flow properties and gel strengths in the desired ranges. Specialty applications such as packer fluids and casing packs typically use concentrations in the 10 to 15 lbm/ bbl [28.5 to 43 kg/m3] range. Advantages Provides gel structure and viscosity for the suspension of weight materials Increases viscosity for improved hole-cleaning capacity Improves filter-cake quality and filtration characteristics Effective gelling agent in casing packs and packer fluids Toxicity and handling Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the safety data sheet. Packaging and storage VG-69 viscosifier is packaged in 50-lb [22.7-kg] multiwall paper sacks. Store in a dry, well-ventilated area. Keep container closed. Store away from incompatibles. Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping, and stacking.
Typical concentrations range from 2 to 10 lbm/bbl [5.7 to 28.5 kg/m3] for most drilling fluid applications, depending on the base fluid and system requirements. Mineral oils generally require higher concentrations than diesel oils. VG-69 viscosifier will not fully yield by the shear and temperature exposure in a mixing plant or mud pit. Care should be taken not to overtreat with VG-69 viscosifier until the fluid has actually circulated through the well. For system maintenance, VG-69 viscosifier should be added as needed to maintain the flow properties and gel strengths in the desired ranges. Specialty applications such as packer fluids and casing packs typically use concentrations in the 10 to 15 lbm/ bbl [28.5 to 43 kg/m3] range.
Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the safety data sheet.
VG-69 viscosifier is packaged in 50-lb [22.7-kg] multiwall paper sacks. Store in a dry, well-ventilated area. Keep container closed. Store away from incompatibles. Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping, and stacking.
Elevated yield point and gel strengths with minimal increase in plastic viscosity. View
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