TY - SER AU - Malik,Hassan AU - Aljubran,Mohammed J. TI - MPD vs underbalanced drilling: 10 ways they differ in operational strategy and implementation PY - 2018/// N2 - The petroleum drilling industry drills many well sections using some type of unconventional drilling technique, or UDT. A drilling operation is considered "unconventional" if it does not follow the drilling method done in the majority of cases ER -