Wellbore pressure control device
First Claim
1. An apparatus for controlling fluid pressure, useful in the production of hydrocarbons from underground reservoirs comprising:
- at least one conical segment, each conical segment comprising;
an inner conical cylinder with a central axis;
an outer conical cylinder, outside of, and coaxial with, the inner conical cylinder;
a swirl chamber disposed between a conical outer surface of the inner conical cylinder and a conical inner surface of the outer conical cylinder;
a fluid entrance through a wall of the outer conical cylinder of at least one conical segment at an upstream end of the apparatus for directing fluids into such conical segment'"'"'s swirl chamber;
a fluid exit through a wall of the inner conical cylinder of at least one conical segment at a downstream end of the apparatus for directing fluids out such conical segment'"'"'s swirl chamber.
1 Assignment
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Accused Products
Abstract
An apparatus for controlling fluid pressure, useful in the production of hydrocarbons from underground reservoirs comprises at least one conical segment. A conical segment comprises: an inner conical cylinder with a central axis; an outer conical cylinder, outside of, and coaxial with, the inner conical cylinder; and a swirl chamber disposed between a conical outer surface of the inner conical cylinder and a conical inner surface of the outer conical cylinder. There is a fluid entrance through a wall of the outer conical cylinder of at least one conical segment at an upstream end of the apparatus for directing fluids into such conical segment'"'"'s swirl chamber. There is also a fluid exit through a wall of the inner conical cylinder of at least one conical segment at a downstream end of the apparatus for directing fluids out of such conical segment'"'"'s swirl chamber.
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Citations
13 Claims
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1. An apparatus for controlling fluid pressure, useful in the production of hydrocarbons from underground reservoirs comprising:
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at least one conical segment, each conical segment comprising; an inner conical cylinder with a central axis; an outer conical cylinder, outside of, and coaxial with, the inner conical cylinder; a swirl chamber disposed between a conical outer surface of the inner conical cylinder and a conical inner surface of the outer conical cylinder; a fluid entrance through a wall of the outer conical cylinder of at least one conical segment at an upstream end of the apparatus for directing fluids into such conical segment'"'"'s swirl chamber; a fluid exit through a wall of the inner conical cylinder of at least one conical segment at a downstream end of the apparatus for directing fluids out such conical segment'"'"'s swirl chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling fluid pressure, useful in the production of hydrocarbons from underground reservoirs, the steps comprising:
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(a) providing at least one conical segment, a conical segment comprising;
an inner conical cylinder with a central axis, an outer conical cylinder, outside of, and coaxial with, the inner conical cylinder; and
a swirl chamber disposed between a conical outer surface of the inner conical cylinder and a conical inner surface of the outer conical cylinder;(b) forming a fluid entrance through a wall of the outer conical cylinder of at least one conical segment at an upstream end of the apparatus for directing fluids into such conical segment'"'"'s swirl chamber; (c) forming a fluid exit through a wall of the inner conical cylinder of at least one conical segment at a downstream end of the apparatus for directing fluids out of such conical segment'"'"'s swirl chamber; and (d) positioning the at least one conical segment within a wellbore between packers. - View Dependent Claims (12, 13)
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Specification