Dhayea, B. A. ., Almahdawi, F. H. M. ., & Al-Shaibani, S. I. M. . (2021). Using of surface back pressure with water based mud in managed pressure drilling technique to solve lost circulation problem in Southern Iraqi Oil Fields. Journal of Petroleum Research and Studies, 11(3), 28-47. https://doi.org/10.52716/jprs.v11i3.531