Christina D Riyanti

Title: Christina D Riyanti: Innovator in Seismic Data Processing

Introduction

Christina D Riyanti is a prominent inventor based in Delft, Netherlands. She has made significant contributions to the field of seismic data processing, holding a total of 3 patents. Her work focuses on methods and devices that enhance the understanding of seismic energy propagation through various media.

Latest Patents

One of her latest patents is titled "Wave field separation by mixed domain inversion." This invention provides methods, devices, and computer-readable media for accessing seismic data that describes seismic energy propagating through media, including water and optionally surface or subsurface layers. The seismic data includes pressure data that describes time-variant pressures at measurement locations in the water. Additionally, it may include velocity data that describes time-variant velocities of particles at these locations. The processing of this seismic data utilizes wavefield decomposition to minimize the effects of seismic energy reflecting off the water's surface. The processed data can be used to generate maps of the media surfaces through which the seismic energy has propagated.

Another notable patent is the "Method for full-bandwidth source deghosting of marine seismic streamer data." This invention involves obtaining seismic data recorded in a marine streamer and sorting it as a common receiver gather. A complex Laplace frequency parameter is employed to transform the seismic data from a space-time domain to a spectral domain. An iterative conjugate gradient scheme, utilizing a physically-based preconditioner, is applied to provide a least squares solution to a normal set of equations for a source deghosting system. The solution is then inverse-transformed back to the space-time domain, yielding source deghosted seismic data that is crucial for imaging the earth's subsurface.

Career Highlights

Christina works at PGS Geophysical AS, where she continues to innovate in the field of geophysics. Her expertise in seismic data processing has positioned her as a key figure in her organization.

Collaborations

Throughout her career, Christina has collaborated with notable colleagues, including Roald Gunnar Van Borselen and Jacob Tjeerd Fokkema. These collaborations have further enriched her research and contributions to the field.

Conclusion

Christina D Riyanti is a trailblazer in seismic data processing, with a focus on enhancing the understanding of seismic energy propagation. Her innovative patents and contributions to PGS Geophysical AS highlight her