... or physicochemical methods, used to permanently chock the lost circulation passage of non pay zone, is not applicable to pay zone. One after another technology such as air underbalanced drilling fluids, non-invasive drill-in fluids and the traditional temporary shielding fluids technology(TSF) were executed...

... Abstract To select bridging agents properly is a critical factor in designing the no-damaging or low-damaging drill-in fluids. Historically, the Abrams's rule has been used for this purpose. According to this rule, the median particle size of a bridging agent should be equal to or slightly...