ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,563, issued on Feb. 4, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Liner top diagnostic tool" was invented by Muhammad Ali Qureshi (Abqaiq, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods include a method for testing in a well. Inflow packers are run into a hole in locked position downhole. A liner top diagnostic tool is run on a drill pipe to a desired depth. A lower-packer-sized ball is dropped into the well to activate a lower inflow packer assembly. A back side of the lower inflow packer assembly is pressure-tested to ensure seal integrity. The lower inflow packer is unset by withdrawing string ...