William R Mills

Title: Innovations of William R. Mills

Introduction

William R. Mills is a notable inventor based in Plano, TX (US), recognized for his contributions to the field of borehole logging technology. He holds a total of 3 patents, showcasing his expertise and innovative spirit in developing advanced tools for subsurface formation analysis.

Latest Patents

One of his latest patents is for a "Pulsed Neutron Decay Logging" tool. This invention features a borehole logging tool equipped with a pair of spaced-apart detectors that record intensity signals representing the die-away of nuclear radiation in a subsurface formation. The tool produces weighted moments of the intensity signals and a model, which are equated and solved to obtain values for a borehole decay constant, a formation decay constant, and a formation-to-borehole amplitude ratio for each detector. A trained neural network then generates intrinsic values of a formation macroscopic thermal neutron absorption cross section, formation porosity, and borehole fluid cross section, creating a log of these values versus depth as the tool traverses the borehole.

Another significant patent is for an "Apparatus for Producing a Porosity Log of a Subsurface Formation." This invention involves a borehole logging tool that measures the die-away of nuclear radiation in the formation as it is lowered into the borehole. The neutron detector produces intensity signals that represent this die-away. A signal processor, utilizing at least one neural network, processes these signals to generate a standoff-corrected epithermal neutron lifetime signal. This correction accounts for the standoff from the borehole wall encountered by the detector. The signal processor further generates a porosity signal from the corrected epithermal neutron lifetime signal, producing a log of the porosity signal versus depth as the logging tool moves through the borehole.

Career Highlights

William R. Mills is currently employed at Mobil Oil Corporation, where he continues to innovate and contribute to advancements in borehole logging technology. His work has significantly impacted the efficiency and accuracy of subsurface formation analysis.

Collaborations

Throughout his career, Mills has collaborated with notable colleagues, including L. Scott Allen and David C. Stromswold. These collaborations have fostered a productive environment for innovation and development in their field.

Conclusion

William R. Mills exemplifies the spirit of innovation through his patents and