Robert P Murphy

Title: Robert P. Murphy: Oil-Reservoir Logging and Measurement Innovations

Introduction

Robert P. Murphy is an inventor associated with Bixby, Oklahoma. His patent work includes techniques for evaluating underground formations and measuring reservoir characteristics. He holds 5 patents.

Latest Patents

**Multi-Tracer Logging Technique.** This method uses two gamma-ray-emitting radioactive tracers with different energy levels to study underground formations. Logs track the tracers as fluids move through the formations, and analysis of the resulting data helps determine changes in effective permeability and fluid sweep.

**Determination of Movable Oil Saturations.** This log-inject-log technique measures movable oil saturation in an underground rock reservoir. It prepares the formation near the wellbore to represent interwell saturation conditions, then uses a sequence of pulsed-neutron logs and fluid injections—including crude oil, chlorinated crude oil, salt water, and fresh water—to determine reservoir characteristics.

Career Highlights

Murphy’s listed company affiliations include Standard Oil Company (Indiana) and The Standard Oil Company. His inventions reflect an emphasis on well logging and methods for assessing oil-bearing formations.

Collaborations

His listed coworkers include Roger L. Smith and Dwight L. Dauben.

Conclusion

Robert P. Murphy’s five patents include methods for tracing fluid movement through underground formations and determining movable oil saturation, contributing to the technical toolkit for reservoir evaluation.