ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,397, issued on March 24, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Method and downhole apparatus for matrix acidizing of a subterranean rock formation" was invented by Mustapha Abbad (Dhahran, Saudi Arabia), Gallyam Aidagulov (Dhahran, Saudi Arabia) and Hussain Khalifah Al-Dakheel (Dammam, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to downhole tools and related methods that provide for controlled radial movement of one or more nozzles to provide an adjustable and variable standoff between the exit of the nozzle(s) and the wellbore surface in the treatment zone of a wellbore d...