Treating apparatus and method for expandable screen system

Details Treating apparatus and method for expandable screen system Treating apparatus and method for expandable screen system

2005-09-13

2005-09-13

Dang, Hoang (Department: 3672)

Wells

Processes

Cleaning or unloading well

C166S207000, C166S380000, C166S382000, C166S227000

Reexamination Certificate

active

06942036

ABSTRACT:
A tool and method for treating an open hole just before expanding a screen into position is described. The swage is hydraulically driven and permits flow through it and out lateral ports to impact the borehole wall. A cup seal assembly below and a packer up above insure that the fluid impacts the borehole wall with sufficient force to dislodge the mud cake. Another feature of the invention is that the surface treatment and screen expansion can be done in one trip. The pressurized fluid that drives the swage also provides the fluid energy to prepare the borehole wall just before the screen is expanded against it.

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patent: WO 02/01042 (2002-01-01), None

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