Schlumberger

RHELIANT PLUS Drilling Fluid System

Overview Library

Next-generation thermally-stable drilling fluid system

The RHELIANT PLUS drilling fluid system provides thermal stability, consistent rheological properties, and protection from barite sag in deep water and ERD operations, despite significant temperature fluctuations in the formation and riser. An advancement from the experience-proven RHELIANT drilling fluid system, the RHELIANT PLUS drilling fluid system provides excellent hole cleaning and reduced operating costs through improved tripping speeds and reduced potential for lost circulation in all types of well profiles, including deep water, directional, and ERD.

Consistent properties regardless of temperature

The RHELIANT PLUS drilling fluid system maintains nearly continual physical properties independent of temperature and pressure. This nonaqueous drilling fluid system retains nearly consistent 150 degF low shear rates viscosities even when encountering temperatures as low as 40 degF (4.4 degC). Its stable rheological properties and gel structure allow drilling and break circulation pressures with lower ECDs, contributing to fewer problems while drilling and successfully avoiding the expensive loss of whole drilling fluid.

Improved formulation

The performance improvements with the RHELIANT PLUS drilling fluid system that include reduced gel strength progression, lower break-circulation pressures and associated break-circulation ECD, reduced hydraulic fluctuations from surge/swab, simpler formulation in the field, and greater temperature stability. While the RHELIANT drilling fluid system is stable to approximately 270°F, the RHELIANT PLUS drilling fluid system is stable to approximately 330-350 degF.

Easy conversion between systems

The RHELIANT PLUS and RHELIANT drilling fluid systems are fully compatible. Therefore, converting to the RHELIANT PLUS drilling fluid system does not require changes in operation and can be effectively carried out from a wide range of NAF fluids.

Contact Us
M-I SWACO logo

Innovation for Challenging
Downhole Environments

RHELIANT PLUS Brochure Thumbnail
RHELIANT PLUS maintains nearly continual physical properties independent of temperature.
Download brochure