New water-based system enabled major operator to drill 2.5-mile lateral
October 21, 2024
Gilsonite® H2O: A game-changer for WBM systems
Gilsonite® H2O enabled a major operator in the Permian Basin to overcome a challenging downhole environment and successfully reach TD (Total Depth) in an extended reach lateral well while utilizing a water-based mud system. The project was impacted by water influx within the lateral section requiring the replacement of the oil-based system. Alternative water-based mud (WBM) systems struggled with shale control, high filtrate losses, reduced efficiency and increased costs.
Maintaining drilling efficiency and successfully reaching TD through a 2.5-mile lateral section was critical. This challenge led to the implementation of a cut-brine/lubricant system. To optimize drilling performance, minimize fluid loss and control shale, Gilsonite® H2O was added to the mud formulation. It improved shale stability, controlled fluid loss and increased lubricity, matching prior OBM drilling performance. TD was achieved with an effective water-based system enabled by Gilsonite® H2O.
Superior performance and cost savings
Gilsonite® H2O led to significant improvements in drilling while avoiding the serious handling and residual issues associated with OBMs. Field data showed enhanced penetration rates (ROP), reduced torque, better filter cake development and lower filtrate volumes. These results proved that water-based systems enhanced with Gilsonite® H2O could effectively compete with oil-based systems in the Permian Basin. Additionally, the controlled filtrate and reduced maintenance translated into a more cost-effective drilling process, setting a new standard for WBM fluids.
