ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,394, issued on Nov. 25, was assigned to CONOCOPHILLPS COMPANY (Houston).
"Method and apparatus for acid stimulation" was invented by Jan Ove Soerheim (Tananger, Norway), Maxim Prosvirnov (Tananger, Norway), Elizabeth R. Mathis (Houston) and Tollef Svenum (Tananger, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method and apparatus for performing acid stimulation of a hydrocarbon well (1), especially in a multi-lateral branched well system. In the first lateral (8), after installation of the production liner (9) with ball-activated completion equipment (10), acid stimulation is performed through drill string (21) wh...