ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,819, issued on March 3, was assigned to ExxonMobil Technology and Engineering Co. (Spring, Texas).
"Electric submersible pump (ESP) seal unit" was invented by Michael C. Romer (Tomball, Texas) and Derek B. Bush (The Woodlands, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric submersible pump (ESP) system is described herein. The ESP system includes a pump and a motor connected to drive the pump. The pump and motor are disposed to pump fluid into production tubing in a wellbore. The motor produces heat when operating. The wellbore contains wellbore fluids. A seal unit is connected between the motor and the pump. The seal unit contains...