Prevention of biomass aggregation at injection wells

US8720546B2 · kind B2 · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Albert W. Alsop · Wilmington, US
• Sheryl M. Anyzek · Elkton, US
• Robert D. Fallon · Elkton, US
• Edwin R. Hendrickson · Hockessin, US
• Sharon Jo Keeler · Bear, US
• Abigail K. Luckring · West Chester, US
• Michael P. Perry · Downingtown, US

Key dates

• Filing date: Oct 25, 2011
• Grant date: May 13, 2014
• Expiry date: Sep 3, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K8/582
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed herein is introduction of different nutrient solution formulations to a subterranean target site to prevent biofilm formation and biomass aggregation at the sand face of an injection well bore during MEOR or bioremediation processes. A first nutrient solution formulation supports growth of introduced microorganisms and a second nutrient solution formulation is used to promote biofilm formation to allow plugging of pores and channels in the subterranean target site, for MEOR or bioremediation.