Downhole Fluid Treatment Tool

US20130180721A1Inactive Publication Date: 2013-07-18NCS OILFIELD SERVICES CANADA
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
NCS OILFIELD SERVICES CANADA
Publication Date
2013-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

A treatment device and method for use in delivering fluid treatment to a wellbore is described. The device includes a first treatment housing and a second treatment housing, mounted along a tubing string, each of the first and second housing defining a fluid pathway which is continuous with the tubing string and each of the first and second treatment housing defining a port for fluid communication between the tubing string and the wellbore. Fluid flow through the first housing may be selectively blocked by delivery of a deformable ball to the tubing string to seal against a ball seat disposed between the first and second housing. While the first pathway is blocked, fluid may be selectively delivered to the wellbore through the port on the second treatment housing. The ball may be removed from the ball seat by application of hydraulic pressure in excess of the deformation threshold of the ball, forcing the ball to deform and pass through the seat, re-opening the fluid flow through the first treatment housing and allowing for treatment through port defined in the first housing.
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Description

RELATED APPLICATIONS

[0001] This U.S. patent application claims priority to U.S. Provisional Application 61 / 580,500 filed on Dec. 27, 2011, the disclosure of which is considered part of the disclosure of this application and is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates generally to the delivery of treatment fluid to a geological formation intersected by a wellbore. More particularly, the present invention relates to tubing-enabled completions, in which treatment fluid is delivered through tubing to a target interval of the wellbore.BACKGROUND OF THE INVENTION

[0003] In completing a cased well, the casing may be perforated in specific locations to provide access to the surrounding formation. Various fluid treatments may be delivered through the perforations, and formations fluids may ultimately be produced through the perforations.

[0004] In some wells, the casing may incorporate pre-perforated sleeves, in which the perforati...

Claims

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