Nazli Demirer

Title: The Innovative Contributions of Nazli Demirer

Introduction

Nazli Demirer is a prominent inventor based in Houston, TX (US). She has made significant contributions to the field of directional drilling, holding a total of 13 patents. Her work focuses on enhancing the precision and efficiency of drilling operations through innovative modeling and control techniques.

Latest Patents

One of her latest patents is titled "Nonlinear model predictive control for directional drilling applications." This invention utilizes a nonlinear Delay Differential Equation (DDE) model to predict borehole drilling with high precision according to a well plan. To tackle challenges in real-time control of drilling, she employs techniques such as generalized feedback linearization and finite element concepts. This approach transforms the nonlinear DDE model into a linear Ordinary Differential Equation (ODE) form, allowing for the development of a novel optimization framework. This framework concurrently determines optimal control inputs and solves a linear complementarity problem (LCP). The effectiveness of this model is validated through comparisons with real-world results, demonstrating its capability to maintain drill string alignment with planned well trajectories amidst disturbances.

Another significant patent is "Wellbore trajectory model calibration for directional drilling." This invention involves positioning sensors downhole in a geological formation to perform survey and continuous directional measurements. The wellbore trajectory model predicts the trajectory of the wellbore at measured depths, allowing for calibration based on differences between predicted and actual measurements. This calibration enhances the accuracy of directional drilling operations.

Career Highlights

Nazli has worked with notable organizations such as Halliburton Energy Services, Inc. and the University of Texas System. Her experience in these institutions has contributed to her expertise in the field of directional drilling and modeling.

Collaborations

Throughout her career, Nazli has collaborated with esteemed colleagues, including Robert Phillip Darbe and Umut Zalluhoglu. These collaborations have further enriched her work and innovations in the industry.

Conclusion

Nazli Demirer is a trailblazer in the field of directional drilling, with her innovative patents and contributions significantly advancing the industry. Her work exemplifies the impact of creativity and technical expertise in solving complex challenges in drilling operations.