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:
Jun. 19, 2007
Filed:
Jan. 12, 2004
Dave Stephen, Port Gentil, GA;
James A. Sonnier, Houston, TX (US);
Joseph P. Degeare, Houston, TX (US);
Rustom K. Mody, Bellaire, TX (US);
Mohan L. Soni, Katy, TX (US);
Daniel R. Hart, Sugar Land, TX (US);
Dave Stephen, Port Gentil, GA;
James A. Sonnier, Houston, TX (US);
Joseph P. Degeare, Houston, TX (US);
Rustom K. Mody, Bellaire, TX (US);
Mohan L. Soni, Katy, TX (US);
Daniel R. Hart, Sugar Land, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A short radius exit from a window milled in casing is possible using a whipstock with a sloping surface in excess of 3.5° and a window mill whose diameter is reduced to a percentage generally below about 95% of the casing inside diameter in a mono-bore or non-through tubing application. The system provides a greater flexibility in choosing the window location and eliminates having to penetrate adjacent formations as compared to previous techniques using a longer exit radius. The decrease in mill diameter, as compared to previous techniques, limits stresses on the milling equipment to minimize equipment failures during window milling and subsequent drilling of the lateral.