Patent ID: 8857510

Claim:
A method for determining movement of a drill bit in a wellbore to identify and correct drilling hazards, the method comprising: (a) selecting a plurality of depth intervals within the wellbore to generate a data matrix wherein time is added to the matrix for each depth interval as the drill bit, bottom hole assembly, sensor or other component of a drill string passes the depth interval; (b) generating depth measurements for a drill bit over a time period; (c) determining a transit value for each depth interval over the time period based on the depth measurements of the drill bit wherein each of the transit values indicates a number of movements of the drill bit through a corresponding one of the depth intervals; wherein the transit value further comprises at least one of a number of lateral shocks experienced through each of the depth intervals, delta pressure applied to the wellbore through each of the depth intervals, a number of pump cycles and total side forces applied to a wall of the wellbore through each of the depth intervals; (d) transforming sensor data from a time index to a depth index; (e) pairing the data matrix with sensor data; (f) identifying one or more drilling hazards based on the transit values whereby corrective action is taken wherein the correction action comprises at least one of the following steps: (1) replacing the drill bit, a component of the bottom hole assembly, a portion or all of the bottom hole assembly, or a portion or all of the drill string, or (2) positioning a wireline and logging device or wellbore telemetry device into the wellbore; and (g) continuing steps a through f until drilling is complete.