Luc Petitjean

Title: Luc Petitjean - Innovator in Pressure Sensor Technology

Introduction

Luc Petitjean is a notable inventor based in Vincennes, France. He has made significant contributions to the field of pressure sensor technology, particularly in applications related to oil wells. His innovative approach has led to the development of a unique pressure sensor capable of withstanding severe mechanical and thermal conditions.

Latest Patents

Luc Petitjean holds a patent for a pressure sensor that is specifically designed for use in oil wells. This sensor features a cell that carries a strain-measuring circuit, which is placed inside a body and comes into contact with the pressure to be measured. The cell contains a hermetically sealed internal chamber where pressure is set to a predetermined reference value. The external surface of the cell is subjected to the pressure being measured. The design includes two half-shells joined together along a join plane, with the cell preferably made of sapphire. The crystal axis of the sapphire is oriented perpendicular to the join plane to achieve isotropic stresses. A strain-gauge circuit is deposited on a plane surface of one of the half-shells, parallel to the join plane. This sensor is particularly suitable for testing oil deposits.

Career Highlights

Luc Petitjean is associated with Schlumberger Technology Corporation, a leading company in the oil and gas industry. His work focuses on developing advanced technologies that enhance the efficiency and reliability of pressure measurements in challenging environments.

Collaborations

Luc Petitjean has collaborated with Michel Valdois, contributing to the advancement of pressure sensor technology.

Conclusion

Luc Petitjean's innovative work in pressure sensor technology has made a significant impact on the oil and gas industry. His patented designs demonstrate a commitment to excellence and a deep understanding of the challenges faced in extreme conditions.