Company Filing History:
Years Active: 1986-1990
Title: Innovations of Donald L Johnson, Jr.
Introduction
Donald L Johnson, Jr. is a notable inventor based in Houston, TX (US). He has made significant contributions to the field of well logging systems, holding a total of 5 patents. His work focuses on electromagnetic propagation and resistivity measurement techniques that are essential for understanding earth formations.
Latest Patents
Among his latest patents is the "Electromagnetic Propagation Thin Bed Resistivity Well Logging System." This invention involves a method where a transmitter sends electromagnetic energy into an earth formation from within a borehole. The frequency of this transmission ranges from 500 kilohertz to 4 megahertz, allowing the system to determine the true resistivity of thin strata based on the electromagnetic energy that has propagated through the formation. Another significant patent is the "Deep Penetration Well Logging System and Method." This system determines the dielectric constant and/or conductivity of earth formations, even in cases of fluid invasion. It utilizes electromagnetic energy transmitted from a borehole location, with receivers positioned at three different locations to gather data on the total electromagnetic fields.
Career Highlights
Donald L Johnson, Jr. has had a distinguished career at Texaco Inc., where he has applied his expertise in well logging technologies. His innovative approaches have contributed to advancements in the oil and gas industry, particularly in the accurate assessment of subsurface formations.
Collaborations
Throughout his career, Johnson has collaborated with notable colleagues such as Wayne F Warren and Percy T Cox. These partnerships have fostered a collaborative environment that has led to the development of cutting-edge technologies in well logging.
Conclusion
Donald L Johnson, Jr. is a prominent figure in the field of well logging, with a focus on electromagnetic technologies. His contributions have significantly impacted the industry, and his patents reflect his innovative spirit and dedication to advancing geological exploration techniques.
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