ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,492, issued on May 20, was assigned to ExxonMobil Technology and Engineering Co. (Spring, Texas).

"Methods of characterizing a spatial property of a previously fractured stage of a hydrocarbon well and hydrocarbon wells that perform the methods" was invented by Limin Song (West Windsor Township, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of characterizing a spatial property of a previously fractured stage of a hydrocarbon well and hydrocarbon wells that perform the methods. The hydrocarbon wells include a wellbore that extends within a subsurface region. The methods include receiving a received acoustic wave. The received acoustic w...