US 12,435,612 B2
Event detection using hydraulic simulations
Dale E. Jamison, Houston, TX (US); Mateusz Michal Dyngosz, Houston, TX (US); and Aidan Porter, Aberdeen (GB)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Nov. 9, 2022, as Appl. No. 17/984,002.
Prior Publication US 2024/0151132 A1, May 9, 2024
Int. Cl. E21B 44/00 (2006.01); E21B 47/00 (2012.01); E21B 49/00 (2006.01); G01V 20/00 (2024.01)
CPC E21B 44/00 (2013.01) [E21B 47/00 (2013.01); E21B 49/00 (2013.01); G01V 20/00 (2024.01); E21B 2200/20 (2020.05); E21B 2200/22 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving user parameters and input parameters at a processor, wherein the input parameters are received from one or more sensors located at a borehole undergoing a drilling operation;
calculating a weighted probability for each event parameter of a drilling operation event as indicated in the input parameters, where the weighted probability includes a trend of the event parameter over a time interval, and a weighting for the weighted probability is specified in the user parameters;
applying hydraulic data and an event probability model to the weighted probability for each respective event parameter using a first derivative calculation of the event probability model versus a corresponding drilling parameter derived over the time interval, wherein the event probability model is a previously learned data model to provide a comparison or a weighting to the weighted probability for each event parameter;
generating results, using the processor, by using the weighted probability, as modified in the applying step, for each respective event parameter and the trend wherein the results determine a potential for the drilling operation event to occur and an estimated time period for the drilling operation event to occur; and
altering, using the results, rotations per minute, rate of penetration, or drill string torque of a drilling assembly thereby reducing the potential for the drilling operation event to occur over the estimated time period.