Company Filing History:
Years Active: 2014-2019
Title: Ivan Chikichev: Innovator in Geophysical Data Inversion
Introduction
Ivan Chikichev is a notable inventor based in Houston, TX (US). He has made significant contributions to the field of geophysical data inversion, holding a total of 3 patents. His work focuses on improving methods for subsurface modeling, which is crucial for various applications in geophysics.
Latest Patents
Chikichev's latest patents include an "Extended subspace method for cross-talk mitigation in multi-parameter inversion." This innovative method allows for the inversion of geophysical data to infer models for multiple subsurface physical properties. By using gradients of an objective function as basis vectors for forming model updates, the method explicitly addresses the mixing between gradient components corresponding to different medium parameters, such as P-wave velocity and anisotropy. Additionally, the method incorporates well constraints when well log data is available, enhancing the accuracy of model updates.
Another significant patent is the "Convergence rate of full wavefield inversion using spectral shaping." This method accelerates the iterative inversion of seismic data to obtain a subsurface model. It optimizes the local cost function and controls the frequency spectrum of the updated model at each iteration to match the known or estimated frequency spectrum for the subsurface region. This approach ensures that the source wavelet's amplitude spectrum aligns with the average amplitude spectrum of the seismic data.
Career Highlights
Ivan Chikichev is currently employed at ExxonMobil Upstream Research Company, where he applies his expertise in geophysical data inversion. His work has been instrumental in advancing the methodologies used in the industry, contributing to more efficient and accurate subsurface modeling.
Collaborations
Chikichev has collaborated with esteemed colleagues such as Anatoly I Baumstein and Partha Sarathi Routh. These collaborations have further enriched his research and development efforts in the field.
Conclusion
Ivan Chikichev stands out as an innovative inventor in the realm of geophysical data inversion. His patents reflect a commitment to enhancing the accuracy and efficiency of subsurface modeling techniques. His contributions continue to influence the industry positively.