Expandable sand screen for use in a wellbore

Details Expandable sand screen for use in a wellbore Expandable sand screen for use in a wellbore

2005-03-22

2005-03-22

Thompson, Kenn (Department: 3672)

Wells

Screens

C166S207000

Reexamination Certificate

active

06868905

ABSTRACT:
The present invention provides apparatus and methods for expanding an expandable sand screen in the wellbore and then fracturing the wellbore. In one aspect of the invention, an expandable sand screen includes a perforated inner pipe and outer shroud. The outer shroud includes a plurality of longitudinal channels that retain their general shape after the expandable sand screen is expanded. In the expanded state, the channels provide a fluid conduit along an area between the screen and the wall of the wellbore. In a subsequent fracturing operation, slurry travels along the conduits permitting communication of the fracturing slurry with hydrocarbon bearing formations.

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Chapter 7, “Packing the Perforation Tunnels,” pp. 40-44, undated.
Chapter 8, “Gravel-Pack Placement,” pp. 45-57, undated.

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