US Patent Issued to Schlumberger Technology on July 14 for "Composite cement compositions and methods of cementing and/or treating wells drilled with water-based drilling fluids" (American, Russian Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,012, issued on July 14, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Composite cement compositions and methods of cementing and/or treating wells drilled with water-based drilling fluids" was invented by Valerie Gisele Helene Lafitte (Sugar Land, Texas), Dean Michael Willberg (Houston) and Anatoly Medvedev (Moscow).

According to the abstract* released by the U.S. Patent & Trademark Office: "Composite cement compositions and slurries for treating a well following a water-based wellbore operation are provided and comprise cement comprising at least one of cement particles and cementitious material, water, and water swellable particulates that are embedded in ...