Research and application of High-density and High-temperature resistant drilling fluid for ultra deep wells
With the advancement of exploration and production towards deeper geological layers,drilling ultra deep wells faces great challenges.conventional drilling fluids may not be effective in ultra deep wells,resulting in poor wellbore stability and operational problems such as leakage and circulation.This study proposes a High-density and High-temperature resistant drilling fluid.Firstly,its formula is studied,and its comprehensive performance is reasonably evaluated.Finally,the application evaluation of High-density and High-temperature resistant drilling fluid for ultra deep wells is carried out,laying the foundation for ensuring the safe and efficient operation of ultra deep well drilling operations.
Ultra deep wellHigh-densityHigh temperature resistant drilling fluidPerformance evaluation