Operational Situations: Drilling was carried out below overbalanced drilling (OBD) circumstances, where by the hydrostatic strain of the drilling mud column intentionally exceeds the formation pore strain. Entire losses also referred to as full losses, in this type of mud losses, whichever drilling fluid is pumped its being lost https://this-site99743.wikifordummies.com/9601483/considerations_to_know_about_loss_circulation_in_drilling