Darrell Dolliver

Title: Darrell Dolliver: Innovator in Borehole Compensation Technology

Introduction

Darrell Dolliver is a notable inventor based in Spring, TX (US). He has made significant contributions to the field of borehole compensation during pulsed-neutron porosity logging. With a total of 2 patents, his work focuses on enhancing the accuracy of porosity measurements in earth formations.

Latest Patents

Dolliver's latest patents include innovative methods, tools, and systems for determining porosity in an earth formation. His approach involves emitting neutrons into the formation to induce inelastic scattering gamma rays and thermal capture gamma rays. These induced gamma rays are detected at both a proximal gamma detector and a far gamma detector, which are positioned at different axial distances from the neutron source. By calculating the proximal-to-far inelastic ratio and the proximal-to-far thermal capture ratio, Dolliver's methods allow for precise calculations of formation porosity. Additionally, he has developed techniques to remove borehole and casing configuration effects from the measured thermal capture ratio, ensuring that only porosity dependence is considered.

Career Highlights

Darrell Dolliver is currently associated with Weatherford Technology Holdings, LLC, where he continues to innovate in the field of borehole technology. His expertise and contributions have positioned him as a key figure in the industry.

Collaborations

Throughout his career, Dolliver has collaborated with esteemed colleagues such as Richard R Pemper and Gregory J Schmid. These partnerships have further enhanced the development of his innovative technologies.

Conclusion

Darrell Dolliver's work in borehole compensation technology exemplifies the impact of innovation in the field of geophysics. His patents and collaborations reflect a commitment to advancing the accuracy of porosity measurements, contributing to the efficiency of resource extraction processes.