Nancy G Dunn

Title: Nancy G Dunn: Innovator in Hydrocarbon Recovery

Introduction

Nancy G Dunn is a prominent inventor based in Houston, TX (US). She has made significant contributions to the field of hydrocarbon recovery, holding 2 patents that showcase her innovative approaches to oil extraction.

Latest Patents

Her latest patents include a method for producing oil-soluble surfactants from lignin. This method involves recovering oil from underground formations through a surfactant flooding system that utilizes these lignin surfactants. The process entails reducing lignin in the presence of a carbon monoxide or hydrogen reducing agent at high temperature and pressure, followed by alkoxylation with an .alpha.-olefin epoxide. The lignin is then transformed into oil-soluble surfactants through reactions such as sulfonation, sulfation, and alkoxysulfation. Another notable patent focuses on an oil recovery method that employs a dialkyl phenol polyethoxy alkyl sulfonate combined with a water-soluble petroleum sulfonate surfactant. This effective surfactant solution is stable in high salinity environments and is injected into underground petroleum reservoirs to recover crude oil.

Career Highlights

Nancy G Dunn is associated with Texaco Inc., where she has been instrumental in advancing hydrocarbon recovery technologies. Her work has significantly impacted the efficiency of oil extraction processes.

Collaborations

Throughout her career, Nancy has collaborated with notable colleagues, including Douglas G Naae and Michael G DaGue. These collaborations have further enriched her contributions to the field.

Conclusion

Nancy G Dunn stands out as an innovative inventor in hydrocarbon recovery, with her patents reflecting her expertise and commitment to advancing oil extraction technologies. Her work continues to influence the industry and pave the way for future innovations.