The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2023
Filed:
Jun. 10, 2020
Baker Hughes Oilfield Operations Llc, Houston, TX (US);
Thomas Kruspe, Wietzendorf, DE;
Yuliy Aleksandrovich Dashevskiy, Novosibirsk, RU;
Alexey Vladimirovich Bondarenko, Novosibirsk, RU;
Nikolay Nikolaevich Velker, Novosibirsk, RU;
Alexander Sergeevich Vershinin, Tomsk, RU;
BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US);
Abstract
Wellbore ranging methods and systems for active electromagnetic ranging between a pair of conductive tubulars. Methods may include generating a depth-dependent current on one conductive tubular of the pair and a return current on another and thereby causing an injection current to flow into the earth formation by electrically exciting a first conductive tubular of the pair at a first wellhead and a second of the pair at a second wellhead, wherein the return current on the one results from the injection current on the other and is received from the earth formation; making electromagnetic measurements indicative of at least one electromagnetic field resulting from the depth-dependent current in the earth formation; and estimating a relative position of the first conductive tubular with respect to the second tubular using the electromagnetic measurements.