Wells – Processes – Placing or shifting well part
Reexamination Certificate
2005-06-01
2008-08-19
Bomar, Shane (Department: 3676)
Wells
Processes
Placing or shifting well part
C166S206000, C166S227000, C166S228000
Reexamination Certificate
active
07413022
ABSTRACT:
The invention involves the use of a base pipe perforated only in a specific section under each screen section. Inflow comes through an outer shroud that is optional and goes through the screen material and into an annular space between the screen material and the unperforated base pipe. After traveling longitudinally in that annular space, the flow must go through a restriction that preferably comprises a porous media in a passage defined outside the still unperforated base pipe. After passing through the porous media in a particular screen section, the flow can pass through openings in the base pipe. A surrounding ring preferably protects the porous media during run in and expansion and can also optionally create additional resistance to flow to work in tandem with the porous media. Other flow restricting techniques in place of the porous media are contemplated.
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Augustine, Jody R., et al., “An Investigation of the Economic Benefit of Inflow control Devices on Horizontal Well Completions Using a Reservior-Wellbore Coupled Model”, SPE 78293, Oct. 2002, pp. 1-10.
Baker Hughes, Baker Oil Tools Product Report, “Equalizer Screen”, Product Family Nos. H48678, H48692, and H48693, 2002, 1 page.
Broome John T.
Henriksen Knut H.
Baker Hughes Incorporated
Bomar Shane
Rosenblatt Steve
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