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. 12, 2018
Filed:
May. 15, 2015
Baker Hughes Incorporated, Houston, TX (US);
Troy A. Miller, Bellville, TX (US);
Jeffery L. Knippa, Point Venture, TX (US);
Baker Hughes, a GE company, LLC, Houston, TX (US);
Abstract
A method of providing cement isolators in an annular space about a tubular string in open hole uses a straddle tool that sequentially engages profiles in the tubular string so that prepositioned communication valves to the surrounding annulus can be straddled to force cement out through the straddle tool and into the annular space. The cement is formulated to stay in position and set up. Each valved opening in the string comes with an associated locating profile and another profile for a locking dog to secure the straddle tool in position for forced delivery from the tool and into the valve assembly for delivery into the open hole annulus where a sealing ring of cement will set up for isolation. The operation sequentially put in place as many barriers as there are valve assemblies to straddle and in a single trip generally working in an uphole direction.