CAT (Current Attenuation Test) survey of OIL?s Duliajan-Barauni main Crude Oil Pipeline from chainage PLKM 630 to PLKM 854 in West Bengal 2) CIPL (Close Interval Potential Logging) survey of OIL?s Duliajan- Barauni main Crude Oil pipeline from chainage PLKM 905 to PLKM 1157 in Bihar.
