Company Filing History:
Years Active: 2014-2020
Title: Pal Jacob Nessjoen: Innovator in Drilling Technology
Introduction
Pal Jacob Nessjoen is a notable inventor based in Trondheim, Norway. He has made significant contributions to the field of drilling technology, holding a total of 6 patents. His work focuses on methods and apparatuses that enhance the efficiency and effectiveness of drilling operations.
Latest Patents
One of his latest patents is titled "Methods and apparatus for reducing stick-slip." This invention provides a method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, the method includes driving the drill string by a drilling mechanism located at the upper end of the drill string. The fundamental frequency of stick-slip oscillations experienced by the drill string is estimated. Variations in the drive torque of the drilling mechanism are determined, and the known torsional compliance of the drill string is combined with these variations. Ultimately, an output signal representing the instantaneous rotational speed is provided.
Career Highlights
Pal Jacob Nessjoen is currently employed at National Oilwell Varco, L.P., where he continues to innovate in drilling technologies. His expertise and inventions have contributed to advancements in the industry, making drilling operations more efficient and reliable.
Collaborations
He has collaborated with notable coworkers such as Age Kyllingstad and Arne Austefjord, who share his commitment to innovation in drilling technology.
Conclusion
Pal Jacob Nessjoen is a distinguished inventor whose work in drilling technology has led to significant advancements in the field. His contributions, particularly in reducing stick-slip phenomena, demonstrate his commitment to improving drilling efficiency.