Ningya Cheng

Title: Ningya Cheng: Innovator in Borehole Stress Measurement

Introduction

Ningya Cheng is a notable inventor based in Sugar Land, TX (US). He has made significant contributions to the field of geophysics, particularly in the area of borehole stress measurement. His innovative work has led to the development of a patented system that enhances the understanding of in-situ stress fields in geological formations.

Latest Patents

Ningya Cheng holds a patent titled "Estimating formation stress using borehole monopole and cross-dipole." This invention provides a system and method to determine an in-situ stress field based on borehole acoustic monopole and cross-dipole measurements. The process involves generating a radially polarized monopole shear-wave in a borehole and determining whether the shear-wave has split into two shear-waves. The difference in velocities between these split shear-waves is utilized to assess the stress-induced anisotropy around the borehole. Additionally, the invention measures the velocities of cross-dipole shear-waves and the direction of the fast shear-wave to ascertain the magnitude of the maximum shear stress and the maximum stress orientation of the geological formation. The patent also discloses methods for determining stress-velocity coupling coefficients and defining a stress indicator related to stress-caused rock deformation.

Career Highlights

Ningya Cheng is currently employed at Baker Hughes Corporation, where he continues to apply his expertise in geophysics and engineering. His work at Baker Hughes has allowed him to collaborate with other talented professionals in the field, further advancing the technology related to borehole stability and sand control applications.

Collaborations

Throughout his career, Ningya Cheng has worked alongside esteemed colleagues such as Xiaoming Tang and Arthur C Cheng. These collaborations have contributed to the development of innovative solutions in the industry.

Conclusion

Ningya Cheng's contributions to the field of borehole stress measurement exemplify the impact of innovative thinking in geophysics. His patented technology not only enhances the understanding of geological formations but also plays a crucial role in ensuring the stability of boreholes.