OBM Additives

Oil-Based Mud Rheology Modifier / Thinner

UBDrill-261 is a high-performance oil-based mud thinner and rheology modifier designed for OBM systems. It reduces viscosity, improves flow properties, and enhances drilling efficiency under high temp

Density (20°C) 0.85 – 0.95 g/cm³
Flash Point ≥ 65°C
Stable up to 400°F (204°C)

Product introduction

UBDrill-261 is a kind of OBM thinner and then diluting them with a certain amount of white oil while using. During the drilling process, fine drill cuttings particles will disperse and accumulate in the drilling fluid. Excessive solid phase can rapidly lead to an increase in rheological parameters, including static and dynamic shear.

An increase in rheological parameters will reduce drilling speed and increase pump pressure until it exceeds the fracture pressure of the formation.

The addition of UBDrill-261 diluents to oil-based mud effectively solves the problem of increased rheological parameters caused by ultrafine drilling cuttings in the absence of efficient solid control equipment.

Technical Index

Appearance	Light yellow to brown liquid
Pour Point, °C	≤0
Density, g/cm3/20℃	0.85~0.95
Retention value of demulsification voltage(1%dosage), %	70Min

Applications/Functions

＞ Functions as thinner and reduce drilling fluid viscosity.

＞ Used for high-temperature and high-pressure wells.

Advantages

＞ Temperatures stable up to 400 °F.

＞ Improve the rheology of OBM drilling fluids.

Recommended Handling

＞ The recommended low-density dosage is 0.1% to 0.25% (v/w), while the high-density dosage is 0.5% to 1%, but a pilot test is required for optimal results.

＞ Avoid contact with eyes, skin, and clothing, otherwise rinse with plenty of water for handling methods and hazardous data, please refer to the Safety Data Sheet.

Packaging and Storage

55-GAL DRUM.

Store in dry, well-ventilated area. Keep container closed. Keep away from heat, sparks and flames. Store away from incompatibles. Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping and /or stacking.

description2