ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,271, issued on May 12, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Methods for freeing differentially stuck pipes" was invented by Hasmukh A. Patel (Houston), Ahmet Atilgan (Houston), Nicolas Osorio Labrador (Houston) and Qusai Darugar (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for freeing differentially stuck pipes may comprise introducing a spotting fluid composition in the vicinity of a portion of a differentially stuck pipe in a well, such that the spotting fluid contacts a material surrounding the portion of the differentially stuck pipe. The spotting fluid may comprise about 0.01 M to about 5 M of an...