US Patent Issued to Halliburton Energy Services on April 14 for "Topside interrogation using multiple lasers for distributed acoustic sensing of subsea wells" (Texas Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,253, issued on April 14, was assigned to Halliburton Energy Services Inc. (Houston).

"Topside interrogation using multiple lasers for distributed acoustic sensing of subsea wells" was invented by Andreas Ellmauthaler (Houston), John Laureto Maida Jr. (Houston) and Glenn Andrew Wilson (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A distributed acoustic system (DAS) may include an interrogator that includes two or more lasers, a pulser module disposed after and connected to each of the two or more lasers, a wavelength division multiplexer (WDM), wherein each of the pulser modules are connected to the WDM as inputs, and a downhole fiber atta...