CPC E21B 43/14 (2013.01) [E21B 43/26 (2013.01); E21B 47/06 (2013.01); E21B 47/095 (2020.05); E21B 47/18 (2013.01)] | 24 Claims |
1. A method for detecting wellbore faults, comprising:
obtaining pressure data associated with a pressure signal from a pressure sensor, wherein the pressure data includes measurements of a back pressure of a fluid being pumped into a wellbore over a selected time period;
converting, based on the pressure data, at least a portion of the pressure signal into frequency domain using a transformation from a time domain to the frequency domain;
detecting a change in frequency of the pressure signal in the frequency domain; and
determining that a fault associated with the wellbore has occurred based on the changed frequency of the pressure signal.
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