Sobm is mainly used to drill severly unstable shale sections and also finds application in drilling hpht wells . Can sobm be used for drilling exploratory wells ? Can sobm replace nddf used in drilling drain holes . Will it not impact the production due to wettability changes. Can sobm be used as a reservoir drilling fluid? Does weighing material micromax ( 4.8 sp.Gr ) be used in sobm to be effective in increasing return permeability values as compared to use of barytes.
Jay |Petroleum Consultant
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