ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,725, issued on May 13, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.) and University of Pittsburgh-Of the Commonwealth System of Higher Education (Pittsburgh).
"Control of fracture growth during well operation" was invented by Andrew Paul Bunger (Pittsburgh), Amr Said El-Fayoumi (Houston), Jose I. Adachi (Houston), Karim S. Zaki (Houston) and Qiao Lu (Pittsburgh).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dissipation equilibrium value for a well operation may be determined based on a height of a fracture within a layer and a limit on the change of the height of the fracture (fracture height change limit). A pressure limit for the well ...