Liming Yu is a prominent inventor based in Stafford, TX (US), known for his significant contributions to the field of geophysical measurement technologies. With a total of 17 patents to his name, he has made remarkable advancements in the methods and apparatus used for resistivity measurements in various geological formations.

Latest Patents

Among his latest patents is a method and apparatus for the use of the real component of a magnetic field in multicomponent resistivity measurements. This innovative approach utilizes a resistivity logging tool to conduct multi-component induction measurements in anisotropic earth formations. By inverting a subset of these measurements, horizontal resistivities are determined, which, when combined with another subset, allow for the calculation of vertical resistivities. The results obtained using in-phase signals are comparable to those achieved through multifrequency focusing of quadrature signals.

Another notable patent is for a multi-component induction instrument measuring system designed for geosteering and formation resistivity data interpretation in horizontal, vertical, and deviated wells. This improved induction tool is equipped with electromagnetic transmitters and sensors that effectively transmit and receive magnetic fields in radial directions, orthogonal to the tool's longitudinal axis. This design minimizes errors associated with parasitic eddy currents induced in the metal components surrounding the transmitter and receiver coils. Additionally, a magnetic lens is incorporated to enhance sensitivity to specific reservoir formation properties.

Career Highlights

Liming Yu is currently associated with Baker Hughes Corporation, a leading company in the energy sector. His work has significantly impacted the efficiency and accuracy of geophysical measurements, making him a valuable asset to the organization.

Collaborations

Throughout his career, Liming has collaborated with notable colleagues, including Otto N Fanini and Berthold Kriegshauser. These collaborations have further enriched his work and contributed to the advancement of technologies in the field.

Conclusion

Liming Yu's innovative contributions to geophysical measurement technologies have established him as a leading inventor in his field. His patents reflect a commitment to enhancing the accuracy and efficiency of resistivity measurements, which are crucial for various applications in the energy sector.

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