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.

Date of Patent:
Jan. 31, 2006

Filed:

Oct. 24, 2002
Applicants:

Harold J. Vinegar, Bellaire, TX (US);

Christopher Kelvin Harris, Houston, TX (US);

Robin Adrianus Hartmann, Rijswijk, NL;

Christopher Arnold Pratt, Cochrane, CA;

Gordon Bruce Lepper, Calgary, CA;

Randolph Rogers Wagner, Houston, TX (US);

Inventors:

Harold J. Vinegar, Bellaire, TX (US);

Christopher Kelvin Harris, Houston, TX (US);

Robin Adrianus Hartmann, Rijswijk, NL;

Christopher Arnold Pratt, Cochrane, CA;

Gordon Bruce Lepper, Calgary, CA;

Randolph Rogers Wagner, Houston, TX (US);

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for forming one or more openings in a hydrocarbon containing formation is described. The method may include forming or providing a first opening in the formation. A plurality of magnets may be provided into the first opening. The plurality of magnets may be positioned along a portion of the first opening. The plurality of magnets may produce a series of magnetic fields along the portion of the first opening. A second opening in the formation may be formed using magnetic tracking of the series of magnetic fields. The second opening may be spaced a desired distance from the first opening. Alternate embodiments include use of an energized conduit to create a magnetic field. Such energized conduit can be used alone or with the plurality of magnets.


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