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. 29, 2024
Filed:
Feb. 10, 2022
Applicant:
Conocophillips Company, Houston, TX (US);
Inventors:
Jan Ove Soerheim, Tananger, NO;
Tollef Svenum, Tananger, NO;
Assignee:
CONOCOPHILLIPS COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); E21B 7/06 (2006.01); E21B 34/06 (2006.01); E21B 43/10 (2006.01);
U.S. Cl.
CPC ...
E21B 41/0035 (2013.01); E21B 7/06 (2013.01); E21B 7/061 (2013.01); E21B 34/06 (2013.01); E21B 43/10 (2013.01);
Abstract
A method for installing a dual/multiple lateral well where the overburden casing is relatively narrow includes drilling a single diameter bore for the first lateral and employing a tapered liner. The liner has a narrow production section (109) and a larger diameter proximal section (104). A hollow whipstock (113) is run into the well and a window is milled in the proximal section (104) of the tapered liner, allowing a branched lateral B (115) to be drilled and then a liner (116) run through it.