US Patent Issued to Scientific Drilling International on Nov. 18 for "Downhole sensor assembly for alignment measurement" (German Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,822, issued on Nov. 18, was assigned to Scientific Drilling International Inc. (Houston).

"Downhole sensor assembly for alignment measurement" was invented by Carsten Freyer (Wienhausen, Germany) and Karsten Zeiske (Celle, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole alignment tool includes a guidance device, the guidance device having a center and a reference mark and a downhole sensor assembly, the downhole sensor assembly attached or positioned within the guidance device. The guidance device includes electronics, the electronics including an oscillator, an evaluation unit, and an output stage. A sensor detects a signal suppli...