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:
Oct. 30, 2018
Filed:
May. 15, 2009
Brian Clark, Sugar Land, TX (US);
Jan Stefan Morley, Houston, TX (US);
Brian Clark, Sugar Land, TX (US);
Jan Stefan Morley, Houston, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
Methods for drilling a second well in a spatial relationship to a first well include positioning a magnetic field source in a first well or borehole and deploying at least two magnetometers in a second well or borehole. The magnetometers are separated by a known distance and each measure the magnetic field created by the magnetic field source that is located in the first borehole. The magnetic field measurements are used to calculate the locations of the two magnetometers with respect to the magnetic field source. The two locations define the axis of the second borehole with respect to the magnetic field source in the first borehole.