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. 24, 2011
Filed:
Dec. 06, 2006
Benjamin Jeffryes, Cambridge, GB;
Louise Bailey, St. Neots, GB;
Iain Cooper, Texas, TX (US);
Geoffrey Maitland, Cambridge, GB;
Dominique Guillot, Somerville, MA (US);
Benjamin Jeffryes, Cambridge, GB;
Louise Bailey, St. Neots, GB;
Iain Cooper, Texas, TX (US);
Geoffrey Maitland, Cambridge, GB;
Dominique Guillot, Somerville, MA (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method of constructing a borehole drilled with a drilling apparatus (), the method comprises: connecting a flexible tubular liner sleeve () around the outside of the drilling apparatus and connecting the sleeve around an upper opening of the borehole so as to pass into the borehole; progressively extending the sleeve into the borehole as drilling progresses while maintaining connection to the drilling apparatus and borehole opening; at a predetermined point in the drilling, expanding the sleeve so as to contact the borehole wall; and setting the sleeve so as to be fixed to the borehole wall after expansion. Apparatus for use in such a method comprises: a flexible, expandable sleeve (); a first connector for connecting the sleeve around the outside of a drilling assembly; and a second connector for connecting the sleeve around the opening of the borehole; wherein the sleeve is arranged to extend through the borehole between the connectors as drilling progresses.