ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,928, issued on Oct. 14, was assigned to Halliburton Energy Services Inc. (Houston).
"Method and composition for treating lost circulation" was invented by Simon David Turton (Houston), William Cecil Pearl (Houston), Paul J Jones (Houston) and Ronnie Glen Morgan (Duncan, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An invert emulsion is used to form a hydrated flocculated polymer useful in reducing fluid loss in downhole operations. The invert emulsion can be sheared to form the hydrated flocculated polymer, which can be introduced downhole into the fluid loss flow path in a subterranean formation and allowed to accumulate at the pore throat ...