Company Filing History:
Years Active: 2008-2011
Title: Inventor Spotlight: William Malcolm Calhoun
Introduction
William Malcolm Calhoun is an accomplished inventor based in The Woodlands, Texas. With a total of three patents to his name, Calhoun is significantly contributing to advancements in drilling technology. His innovative approaches and methods have the potential to enhance the efficiency of drilling operations in various subterranean formations.
Latest Patents
Among his recent innovations, Calhoun has developed a method for predicting the rate of penetration (ROP) of a drill bit while drilling through rock formations. This method utilizes bit-specific coefficients of sliding friction and mechanical efficiency as functions of the confined compressive strength of the rock. By calculating ROP based on these relationships and the estimated confined compressive strength (CCS) of the rock, the technology aims to improve drilling performance.
Another notable patent addresses the estimation of CCS in rock formations through the application of Skempton theory. This method evaluates changes in the strength of rocks due to applied stresses during drilling and calculates CCS accordingly. It incorporates various factors such as wellbore profile, stress raisers, and mud weight, using computer modeling to derive correction factors for optimal drilling results.
Career Highlights
Calhoun is affiliated with Chevron U.S.A. Inc., where his expertise in drilling technology significantly contributes to the company’s innovative projects. His work in this field has not only garnered patents but has also positioned him as a valuable asset in enhancing drilling efficiency and techniques.
Collaborations
Throughout his career, Calhoun has collaborated with skilled professionals like Russell Thomas Ewy and Hector Ulpiano Caicedo. These collaborations have led to the development of advanced methodologies that improve the effectiveness of drilling operations.
Conclusion
William Malcolm Calhoun stands out as an inventive force in the drilling industry, with a strong foundation built upon his patented methods. His contributions at Chevron U.S.A. Inc. and collaborative efforts with esteemed colleagues continue to push the boundaries of drilling technology, reflecting the ongoing importance of innovation in enhancing industry standards and efficiencies.