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:
Jul. 22, 2014
Filed:
Jun. 21, 2011
Lindsey Lee, Houston, TX (US);
Gene Hill, Odessa, MO (US);
Eddie Malcolm, Independence, MO (US);
Jeffrey A. Stokes, Grain Valley, MO (US);
Lindsey Lee, Houston, TX (US);
Gene Hill, Odessa, MO (US);
Eddie Malcolm, Independence, MO (US);
Jeffrey A. Stokes, Grain Valley, MO (US);
Fike Corporation, Blue Springs, MO (US);
Abstract
A cementing tool () capable of being installed in a casing string () and configured to selectively permit the flow of cement through one or more ports () in the tool is provided. The ports () are normally sealed by rupture disc assemblies () comprising a rupture disc () that can be opened to permit flow of cement through the casing string central bore () and into the annulus () defined by the casing string () and the downhole formation (). The cementing tool () is particularly useful during cementing operations in which the annulus () has become blocked by a collapsed portion of the formation by allowing the obstruction () to be bypassed and the flow of cement () into the annulus to be continued without substantial interruption. Tool () may also be used in multistage cementing operations.