Edward M Tollefsen

Title: Inventor Spotlight: Edward M. Tollefsen

Introduction

Edward M. Tollefsen, an innovative inventor based in Katy, TX, has made significant contributions to the field of downhole technology through his inventive spirit. With four patents to his name, Tollefsen has demonstrated a commitment to advancing drilling techniques and enhancing the efficiency of subterranean operations.

Latest Patents

Among Tollefsen's notable patents are groundbreaking advancements in downhole electromagnetic sensing techniques. His patented electromagnetic (EM) telemetry system is designed to transmit EM signals downhole, featuring an EM transmitter alongside multiple sensors that communicate both with the transmitter and with each other. This method of integration enables precise selection of sensors based on signal-to-noise ratios (SNR) and the depth of the EM transmitter, facilitating improved data collection.

Another patent highlights his innovative approach to evaluating cuttings density while drilling. Tollefsen's method involves acquiring pressure measurements at axially spaced intervals in a wellbore to determine the interval density of drilling fluid. These measurements are instrumental in calculating cuttings density and offer valuable insights during drilling operations. His tools are equipped with several axially spaced pressure sensors connected electronically to a surface processor, allowing for dynamic analysis of wellbore conditions.

Career Highlights

Edward M. Tollefsen has established himself within Schlumberger Technology Corporation, a leader in technology related to oil and gas exploration and production. His work plays a vital role in the company's ongoing mission to innovate and refine drilling processes, ensuring safety and efficiency.

Collaborations

Throughout his career, Tollefsen has collaborated with esteemed professionals such as John C. Rasmus and William Lesso. These partnerships exemplify the collaborative nature of the engineering and technology fields, as they work together to advance their shared goals within the industry.

Conclusion

In summary, Edward M. Tollefsen stands out as a notable inventor whose contributions have markedly improved downhole technology. His patents reflect a profound understanding of the challenges faced in drilling operations and showcase his ability to devise practical solutions. Through his work at Schlumberger Technology Corporation and his collaborations with fellow innovators, Tollefsen continues to pave the way for future advancements in the sector.