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[CN 202011255268.1] A Method for Identifying Downhole Jumping Drilling by Using Triaxial Vibration Signals of Air Hammer


[CN 202011255268.1] A Method for Identifying Downhole Jumping Drilling by Using Air Hammer Triaxial Vibration Signal Title: A Method for Identifying Downhole Jumping Drilling by Using Air Hammer Triaxial Vibration Signal Application Number: CN 202011255268.1 Applicant: Sinopec Petroleum Engineering Technology Service Co., Ltd.; Application Date of Drilling Engineering Research Institute of Sinopec Southwest Petroleum Engineering Co., Ltd.: 2020-11-11 Patent Type: the present invention provides a method for identifying underground drilling by using the three-axis vibration signal of the air hammer, including the three-axis vibration signal collector fixed at the top drive position to collect vibration data during normal drilling, drilling and jumping. Among them, the wireless transmitting module is connected with the three-axis vibration signal collector. In gas drilling operation, the vibration data collected while drilling is transmitted to the ground monitoring system in real time through the wireless transmitting module, the matching distance is obtained by comparing the real-time vibration data with the sample data, and the situation of the air hammer drilling is identified according to the minimum matching distance. The method of the invention is simple to operate, can continuously monitor the vibration of the drill string in real time, quickly judge the underground drilling situation when the air hammer drilling, and improve the safety of gas drilling.

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