Bjorn Vassoye

Title: Bjorn Vassoye: Innovator in Hydraulic Cement Slurry Technology

Introduction

Bjorn Vassoye is a notable inventor based in Stavanger, Norway. He has made significant contributions to the field of hydraulic cement slurry technology, particularly for applications in oil well cementation. His innovative approach addresses the challenges associated with gas-containing formations.

Latest Patents

Vassoye holds a patent for a hydraulic cement slurry designed for use in cementation of oil wells. This invention includes a formulation that consists of hydraulic cement, 5-100% microsilica based on the weight of cement, and 2-200% lightweight aggregate with a real particle density between 0.1 and 1.5 g/cm³ based on the weight of the cement. Additionally, it incorporates 0-5% thinner (dry weight) and 0-10% fluid loss additive (dry weight) based on the weight of the cement. The slurry is mixed with water to achieve a density between 0.8 and 2.0 g/cm³, ensuring it is gas-tight for effective cementation in gas-containing formations.

Career Highlights

Vassoye is associated with Elkem AS and Den Norske Stats Oljeselskap AS, where he applies his expertise in hydraulic cement technology. His work has been instrumental in advancing the methods used in oil well cementation, contributing to safer and more efficient drilling operations.

Collaborations

He has collaborated with notable colleagues such as Nils Blomberg and Per J. Svenkerud, enhancing the innovation process through teamwork and shared expertise.

Conclusion

Bjorn Vassoye's contributions to hydraulic cement slurry technology exemplify the impact of innovative thinking in the oil and gas industry. His patent reflects a commitment to improving cementation processes, ensuring safety and efficiency in oil well operations.