The RHADIANT oil-based ultrahigh-temperature drilling fluid system is formulated to maintain stability throughout the construction and evaluation of ultrahigh temperature wells with bottomhole static temperatures (BHST) of greater than 500 degF [260 degC]. The system maintains stable rheological profiles with all the characteristics needed to deliver cost-effective drilling rates in thermally hostile downhole environments.

Log, case, and cement wells efficiently during ultrahigh temperature drilling

Unlike conventional nonaqueous drilling fluids, the RHADIANT fluid system maintains extreme-temperature stability even during prolonged static conditions. Stable rheologies in tandem with ultrathin and slick filtercake deposits facilitate efficient logging, casing, and cementing operations. Additionally, the fluid system effectively protects downhole tools while optimizing operations, enabling accurate perforation placement, optimized completions, and high-quality reservoir characterization.

Eliminate typical ultrahigh temperature drilling challenges

The RHADIANT fluid system minimizes lost circulation, excessive equivalent circulating densities (ECD), stuck pipe, ballooning, well control and other issues typically associated with drilling deep and ultrahigh temperature wells. It also resists acid gas contamination and maintains stability during prolonged static periods of tripping, logging, and cementing. The low, nonprogressive gel structure, excellent high-pressure, high-temperature (HPHT) filtration control and superb filtercake quality of the RHADIANT fluid system combine to deliver a wellbore ideally conditioned for openhole logging and prospect evaluation.