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. 31, 2005
Filed:
May. 08, 2002
John P. Davis, Cypress, TX (US);
Edwin C. Howell, Houston, TX (US);
Steve Rosenblatt, Haddonfield, NJ (US);
John P. Davis, Cypress, TX (US);
Edwin C. Howell, Houston, TX (US);
Steve Rosenblatt, Haddonfield, NJ (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A method of streamlining expansion of long lengths of tubulars or screen is disclosed. In one embodiment, the expansion assembly is coupled with a length of pipe that acts as a weight and has a length longer than the anticipated section to be expanded. There is a stinger that fits into the pipe above the anchor and a seal to maintain sealing contact despite the downhole advance of the expansion assembly following each stroke of the expansion device and advance of a swage. By sequentially applying and removing pressure, the desired length is expanded downhole. Alternatively, coiled tubing is connected to the expansion assembly and weights that are above it and is paid out into the well as the expansion assembly descends after each stroke.