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US 2007/0175834 A1Published application
Helical internal support structure for intake screens
AssigneeWeatherford/Lamb, Inc.
InventorsJay Osborne, Michael Ekholm, Dan Ganfield
Life of this patent
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Abstract
A method and apparatus for supporting a screen. The apparatus comprising a cylindrical screen for submerging in a fluid, the screen having an inlet pipe for connecting to a piping system, filter members, a first end, a second and a support structure. The support structure is one or more helical members which traverse the screen.
Claims20
A submerged filter assembly comprising:
- a cylindrical screen having an inner diameter, a first end and a second end;
- and
- a support structure for supporting the cylindrical screen located on the inner diameter of the screen, wherein the support structure is configured in a substantially helical configuration.
A submerged intake screen comprising:
- a cylindrical screen having a screen longitudinal axis, a first end, and a second end, the cylindrical screen defining an interior between the first end and the second end;
- a primary flow modifier pipe having a diameter less than that of the cylindrical screen and a primary longitudinal axis parallel to the screen longitudinal axis, the primary flow modifier pipe extending into the interior of the cylindrical screen through the first end of the cylindrical screen, thereby forming an annular space between the primary flow modifier pipe and the cylindrical screen;
- and
- a support structure for supporting the screen, the support structure comprising one or more bars in extending from the first end to the second end in a helical configuration.
1 more element
A method of filtering a medium comprising:
- submerging an intake filter assembly, the intake filter assembly comprising:
- a cylindrical screen couplable to a piping system;
- a primary flow modifier;
- and
- a support structure having helical members which support the screen;
- flowing the medium past the filter assembly and into the piping system;
- and
- using the medium at a facility.
5 more elements
Dependencies are inferred from the claim text.