US Patent Issued to Flex-Chem Holding on Sept. 9 for "Stimulation of wells in nano-darcy shale formations" (Oklahoma Inventor)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,362, issued on Sept. 9, was assigned to Flex-Chem Holding Co. LLC (Weatherford, Okla.).

"Stimulation of wells in nano-darcy shale formations" was invented by Andrew Bryce Conway (Weatherford, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Formulations and methods for stimulating the production from wells in nano-darcy shale formations. In one embodiment, the method includes injecting a treatment mixture containing a metal complexing agent into a nano-darcy shale formation adjacent to a well at a pressure below the fracture pressure of the formation. A sufficient contact time is allowed and then the treatment mixture is pumped from the subsurf...