directional

READ: Horizontal directional crossing are still very young at home and even abroad. However, in recent years, thanks to the substantial development of pipeline directional crossing and large-scale construction of domestic oil gas pipelines, KOSUNs solids control equipment have found significant application in directional crossing projects for the stage treatment of directional crossing drilling fluids. Horizontal directional crossing are still very young at home and even abroad. However, in recent years, thanks to the substantial development of pipeline directional crossing and large-scale construction of domestic oil gas pipelines, crossing length and diameter have kept updating the records. Drilling fluids plays an importan role in directional crossing projects for its decisive impact on