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:
Feb. 27, 2007
Filed:
Apr. 26, 2004
Applicant:
Paul David Metcalfe, Peterculter, GB;
Inventor:
Paul David Metcalfe, Peterculter, GB;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Apparatus () for facilitating coupling and cementing of downhole tubulars () comprises a tubing section () for use in lining a bore. The tubing section has upper and lower ends and defines a tubing wall having cement outlets () spaced from the lower end of the tubing. The lower end of the tubing is selectively closed, and swab cups () are provided externally of the lower end of the tubing below the cement outlets () for restricting passage of cement.