US Patent Issued to Conova on June 30 for "Downhole inflow control valve with multi-stage regulation" (Chinese Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,032, issued on June 30, was assigned to Conova LLC (Austin, Texas).

"Downhole inflow control valve with multi-stage regulation" was invented by Yanhong Chen (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole inflow control valve with multi-stage regulation is provided. The downhole inflow control valve with multi-stage regulation includes a sand control screen, a sliding sleeve, an oil nozzle sleeve and a driver. The driver is configured for driving the sliding sleeve to reciprocate. The sliding sleeve is located between the sand control screen and the oil nozzle sleeve. Screen holes are formed in the sand control screen. One of the ...