Techniques for calibrating borehole propagation model for direction drilling in real time

V Pho, N Demirer, U Zalluhoglu, RP Darbe - US Patent 12,012,840, 2024 - Google Patents
Current disclosure proposes calibration methodology that uses the knowledge learned from
historical data and real-time data to update a simplified physics-based borehole propagation …

Real-time curvature estimation for autonomous directional drilling

K Hisham, S Tasoujian, KC Bhaidasna… - US Patent …, 2024 - Google Patents
A method and system for estimating a wellbore curvature. The method may include
disposing a rotary steerable system (RSS) into a borehole, storing a real-time curvature …

Optimization based on predicted tool performance

A Ozbek, R Boualleg, L Li - US Patent 12,106,028, 2024 - Google Patents
A method to design well trajectories includes determining dogleg severity as a function of
inclination, and a corresponding rate of penetration performance of the tool by a hybrid …

Error-space feedback controller for drill bit steering

Y Chen, RP Darbe, N Demirer, K Hisham… - US Patent …, 2023 - Google Patents
A variety of methods, systems, and apparatus are disclosed, including, in one embodiment a
method of steering a drilling bit including: determining at least one control command to a …

Well planning based on hazard predictive models

V Guillot, F Karpfinger, A Ozbek, R Boualleg… - US Patent …, 2024 - Google Patents
A method to design well trajectories includes determining dogleg severity as a function of
inclination, and a corresponding rate of penetration performance of the tool by a hybrid …

Diagnostic trouble code signature classification for downhole tool fault identification

W Zhang, U Zalluhoglu, RA Chanpura - US Patent 12,197,515, 2025 - Google Patents
A method and system for identifying a fault in a downhole tool. The method may comprise
storing a plurality of diagnostic trouble codes (DTCs) from one or more previous downhole …

Automated scheduling of sensors for directional drilling

RA Chanpura, U Zalluhoglu, C Sosareyes - US Patent 11,761,326, 2023 - Google Patents
A method and system for a rotary steerable system (RSS). The method may comprise
performing a tool position calculation from the one or more measurements and creating one …