Abstract: Well BK9 is a development well located in the outer blocks of the Tahe Oil Field.gas pumping to drive oil flow in coiled tubing,liquid supply is not enough.Manometer is Whenused touslngmea5ureliquid surface restoration speed so as to guide latter gas pumping.The well is far away from the oilfield base,the regionSO It COStSis high(1.moretime and money to arrange well test.Meanwhile,the pressure coefficient of97 for formation pressure coefficient),resulting in big risks for well controls.Through techniqueelectric manometerInnovationa dynamic pressure measuring technique combining coiled tubing andis proposed.The detected liquid depth correction formula is put forward.