Mark L Hoefner

Title: Mark L. Hoefner: Innovator in Polymerization and Oil Recovery

Introduction: Mark L. Hoefner, an inventive mind based in Dallas, TX, has made notable contributions to the field of polymerization and oil recovery. With a total of four patents to his name, Hoefner's work showcases innovative approaches that target efficiency and effectiveness in various applications.

Latest Patents: Among his most recent patents are two significant innovations. The first is centered around an in-situ emulsion polymerization of ethylene derivatives. This method involves the profile control of permeable zones within formations that encounter high fluid flow, water, or considerable pressure. By injecting a water-external emulsion comprised of a monomer, cross-linker, free radical initiators, and reaction inhibitors into the formation, solid, plastic-like spheres are formed. These spheres, which boast high compressive strength, serve crucial functions in demanding flow conditions, utilizing ethylene, propylene, and styrene monomers to create solid spheres of polyethylene, polypropylene, or polystyrene.

The second patent outlines a method to enhance polymer usage for injectivity profile control. This technique focuses on minimizing blockage in zones of lesser permeability during gel injection into formations for profile control. A solidifiable gel constituted of hydroxypropyl guar gum, along with a gel breaker, is injected into the formation, strategically entering both zones of lesser and greater permeability. The gel effectively blocks pores in the zone of lesser permeability, while a secondary gel made from melamine formaldehyde resin is introduced to the zone of higher permeability, solidifying over time. As the gel in the lesser permeability zone liquefies, it unblocks this zone, allowing for subsequent water-flooding enhanced oil recovery methods.

Career Highlights: Hoefner's career is marked by his significant tenure at Mobil Oil Corporation, where his expertise has paved the way for innovative solutions in the oil industry. His work has not only contributed to advancements in polymer application but has also enhanced recovery techniques that benefit the field significantly.

Collaborations: Throughout his career, Hoefner has collaborated with notable peers in the industry, including Alfred R. Jennings, Jr. and Paul Shu. Their combined expertise has fostered a productive environment for innovation, leading to the development of methods and technologies that address complex challenges within oil recovery and polymerization processes.

Conclusion: Mark L. Hoefner stands out as a pivotal inventor whose contributions to polymerization and oil recovery are invaluable. With his four patents underscoring a commitment to innovation, Hoefner’s work exemplifies the significant impact that thoughtful engineering and inventive thinking can have on modern industry practices. Through his continued efforts and collaborations, he plays a crucial role in advancing the efficiency of oil recovery methods and polymer applications.