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. 26, 2007
Filed:
Apr. 02, 2003
Ray P. Vincent, Cypress, TX (US);
Frank Koehrmann, Lachendorf, DE;
George E. Givens, Spring, TX (US);
Christiaan D. Krauss, Houston, TX (US);
Edward T. Wood, Kingwood, TX (US);
Friedhelm Makohl, Hermannsburg, DE;
David B. Haughton, Houston, TX (US);
Ray P. Vincent, Cypress, TX (US);
Frank Koehrmann, Lachendorf, DE;
George E. Givens, Spring, TX (US);
Christiaan D. Krauss, Houston, TX (US);
Edward T. Wood, Kingwood, TX (US);
Friedhelm Makohl, Hermannsburg, DE;
David B. Haughton, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A method and associated equipment are disclosed which allow drilling at least a portion of a well and subsequently cementing casing in a single trip. The method is particularly suited for deep-water offshore operations where the drill string can be run through a section of casing leaving a bit and an under-reamer extending out below. The casing is equipped with ports through which cement can be pumped as well as an external casing packer to prevent the uncured cement in the annulus from U-tubing. Several casing sections can be run in during drilling and cemented succession using the one trip method.