Fluid flow control apparatus
AssigneeABB Offshore Systems Limited
InventorJames Brian Wilson
Life of this patent
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Abstract
Apparatus for use in controlling the flow of fluid between first and second zones (9 and 10) and a common region (26) comprises: a first passageway (17) for providing a first fluid flow path, between the first zone (9) and the common region (26), in use of the apparatus; and a second passageway (23), outside the first passageway (17), for providing a second fluid flow path, between the second zone (10) and the common region (26), in use of the apparatus. The first passageway (17) is provided with first flow control means (25), for controlling the flow of fluid between the first zone (9) and the common region (26), and the second passageway (23) is provided with second flow control means (28), for controlling the flow of fluid between the second zone (10) and the common region (26).
Claims14
Apparatus for use in controlling the flow of fluid between first and second zones and a common region, comprising:
- a first passageway, for providing a first fluid flowpath, between the first zone and the common region, in use of the apparatus;
- and
- a second passageway, outside the first passageway, for providing a second fluid flow path, between the second zone and the common region, in use of the apparatus, the first passageway being provided with first flow control means, for controlling the flow of fluid between the first zone and the common region and the second passageway being provided with second flow control means, for controlling the flow of fluid between the second zone and the common region.
Apparatus according to any preceding claim, wherein the first and second passageways are provided by first and second tubular members.
Apparatus according to any preceding claim, wherein there is sealing means between the first and second passageways for isolating the first and second flow paths from each other.
Apparatus according to any preceding claim, including a third passageway in fluid communication with the common region.
Apparatus according to any preceding claim, wherein each of the first and second passageways is provided with means for varying the rate of fluid flow through the respective flow control means.
Apparatus according to any preceding claim, in the form of a choke assembly for use in controlling the flow of fluid between first and second zones and production tubing in a production well.
Dependencies are inferred from the claim text.