John E Walraven

Title: John E Walraven: Innovator in Drill String Technology

Introduction

John E Walraven is a notable inventor based in Dallas, TX (US). He has made significant contributions to the field of drilling technology, particularly in preventing buckling in drill strings. His innovative approach has implications for the efficiency and safety of drilling operations.

Latest Patents

Walraven holds a patent for a method that prevents buckling in drill strings. This patent involves determining the buoyed weight, sliding friction, and external forces applied to the segments of a drill string. By comparing the resultant axial force on each segment with a buckling threshold, it indicates when the resultant axial force exceeds the threshold. The azimuth and inclination of segments of the drill string are measured, and the forces on the drill string are resolved into axial and normal components applied to the next shallower segment. This method enhances the reliability of drilling operations.

Career Highlights

Walraven is associated with Mobil Oil Corporation, where he has applied his expertise in drilling technology. His work has contributed to advancements in the oil and gas industry, particularly in improving drilling techniques and equipment.

Collaborations

Walraven has worked alongside notable colleagues such as Thomas B Dellinger and Wilton Gravley. Their collaborative efforts have furthered innovations in drilling technology.

Conclusion

John E Walraven's contributions to drilling technology through his patent demonstrate his commitment to enhancing the efficiency and safety of drilling operations. His work continues to influence the industry positively.