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:
May. 19, 2020
Filed:
Mar. 27, 2018
Applicant:
Conocophillips Company, Houston, TX (US);
Inventor:
Son V. Pham, Houston, TX (US);
Assignee:
CONOCOPHILLIPS COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/02 (2006.01); E21B 47/022 (2012.01); E21B 47/024 (2006.01); G01V 3/40 (2006.01); E21B 7/04 (2006.01); E21B 49/00 (2006.01); G01V 3/26 (2006.01);
U.S. Cl.
CPC ...
E21B 47/022 (2013.01); E21B 7/04 (2013.01); E21B 47/024 (2013.01); E21B 49/00 (2013.01); G01V 3/26 (2013.01); G01V 3/40 (2013.01);
Abstract
An improved in-field referencing(IFR1) technique is provided, wherein a single mid-lateral well measurement of local magnetic field is used. In one aspect of directional drilling, a single set of IFR values for a planned well is obtained. The single set of IFR values is captured at a single location in a mid-lateral section of the planned well. A global magnetic model corresponding to the Earth's magnetic field is obtained. An improved magnetic model is generated by correcting the global magnetic model for local anomalies using the single set of IFR values.