ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,478, issued on March 11, was assigned to ConocoPhillips Co. (Houston).
"Management of subsea wellhead stresses" was invented by Rune Woie (Tananger, Norway) and Harald Nevoey (Tananger, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method and system for monitoring strain data on a subsea wellhead and associated tubing especially during a drilling or completion operation when the wellhead is connected via a riser to a drilling rig. The bending stresses on the wellhead assembly can be modelled and monitored, based on strain data from strain gauges attached to the conductor, surface casing and possibly also inner tub...