Expanded downhole screen systems and method
AssigneeHalliburton Energy Services, Inc.
InventorsChenKang David Chen, Daniel David Gleitman, M. Vikram Rao
Life of this patent
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Abstract
An improved system and method is disclosed for expanding a fluid permeable tubular downhole in an open hole completion. A high quality borehole is first drilled using a bottomhole assembly having a long gauge bit and a short bit-to-bend ratio. A fluid-permeable tubular is then inserted into an open-hole portion of the wellbore and preferably expanded in place. The expandable tubular may include an external filtering medium. Hydrocarbons may pass from the formation through the expanded fluid permeable tubular and into the borehole, to be recovered.
Claims32
A method of drilling a deviated portion of a borehole and positioning a fluid permeable tubular therein, comprising:
- positioning a bottom hole assembly downhole, the bottom hole assembly including a downhole motor with a drill shaft having an upper section with an upper central rotational axis and a lower central rotational axis offset at a bend having a selected bend angle from the upper central rotational axis, a bit having a bit face, and a gauge section, the bit face defining a bit cutting diameter, the gauge section having an axial length of at least 60% of the bit culling diameter;
- rotating the bit and the gauge section to drill a deviated portion of a borehole;
- inserting a fluid permeable tubular having a run-in diameter at a desired location within the deviated portion of the borehole, the axial length of the fluid permeable tubular being at least 150 times the run-in diameter of the fluid permeable tubular;
- and
- radially expanding the fluid permeable tubular within the drilled borehole portion to an expanded diameter greater than the run-in diameter.
A method of drilling a deviated portion of a borehole and positioning a fluid permeable tubular therein, comprising:
- positioning a bottom hole assembly downhole, the bottom hole assembly including a downhole motor with a drill shaft having an upper section with an upper central rotational axis and a lower central rotational axis offset at a selected bend angle from the upper central axis, a bit including a bit face, and a gauge section, the bit face defining a bit cutting diameter, the gauge section having an axial length of at least 75% of the bit cutting diameter;
- rotating the bit and the gauge section to drill a deviated portion of a borehole;
- inserting a fluid permeable tubular with a run-in diameter at a desired location within the deviated portion of the borehole, the run-in diameter selected to expand less than 15%, the axial length of the fluid permeable tubular being at least 150 times the run-in diameter of the fluid permeable tubular;
- and
- radially expanding the downhole fluid permeable tubular within the borehole to place the fluid permeable tubular in contact with a wall of the borehole.
A subterranean well system comprising:
- a bottom hole assembly including a downhole motor with a drill shaft having an upper section with an upper central rotational axis and a lower central rotational axis offset by a bend at a selected bend angle from the upper central rotational axis;
- a bit having a bit face and a gauge section, the bit face defining a bit cutting diameter, the gauge section having an axial length of at least 60% of the bit cutting diameter, to drill a deviated borehole portion of a well;
- and
- a fluid permeable tubular inserted in the deviated borehole portion and having a run-in diameter, the fluid permeable tubular radially expanded to an expanded diameter greater than the run-in diameter to place the expanded diameter fluid permeable tubular in contact with the deviated borehole portion of the well.
Dependencies are inferred from the claim text.