To dig the well and extract oil, engineers used bamboo as their equipment. The depth of the oil well was nearly 240 m. With the help of technological advancement, the process of extracting oil is easier now. #HPCL #HPRetail #MeraHPPump #Oilwells #ExtractOil #engineers #oil #technological #petroleum HPCL #HPCL #HPRetail #MeraHPPump #Oilwells #ExtractOil #engineers #oil #technological #petroleum