Early warning device is prevented bumping in well drilling

The embodiment of the utility model provides an early warning device is prevented bumping in well drilling, the device includes vibration sensor, data acquisition analysor and data signal transmitter, the data acquisition analysor with vibration sensor is connected, signal transmitter with the data acquisition analysor is connected, vibration sensor is used for monitoring the vibration of offset well sleeve pipe port to the vibration signal transmission that to gather extremely the data acquisition analysor, the data acquisition analysor is used for the basis well drilling drill bit and the nearest distance of neck well sheathed tube are calculated to the intensity of vibration signal, the data signal transmitter is in when the distance is less than safe distance recently, the transmission early -warning singal. The device has overcome that the well drilling exists among the prior art pierces through offset well sheathed tube risk, the security that has increased drilling operation.