ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,684, issued on Oct. 6, was assigned to Silverwell Technology Ltd. (Cambridge, Great Britain).
"Modified gas assisted plunger lift" was invented by Joel David Shaw (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piloted valve in a production string is actuated for injecting gas into a production string for gas assisted plunger lift ("GAPL") operations in a well. Actuation of the piloted valve occurs by operation of a surface controlled gas lift valve having an outlet in communication with the piloted valve. The piloted valve is installed in a side pocket mandrel of the production string, and after formation pressure around a well has dropped...