Adjustable well choke mechanism
AssigneeTexaco Inc.
InventorKenneth J. Domangue
Life of this patent
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Abstract
Apparatus for regulating the fluid flow produced from a gas pressurized subterranean reservoir. The produced mixture comprising crude oil, water, gas and varying amounts of particulated matter. The apparatus includes a bean which is characterized by a constant diameter flow passage, which limits the flow to a maximum rate. An adjustable valve positioned immediately upstream of the bean flow passage is adjustable to regulate the flow of pressurized fluid from its source, to a desired value less than the maximum level maintained by the bean. The apparatus is structured to allow ready access to the interior to facilitate replacement and repair of internal parts which may become worn or damaged due to constant wear and erosion by the flowing, abrasive fluid.
Claims5
Adjustable choke for regulating fluid flow from the well conductor producing a pressurized fluid mixture comprising crude oil, gas and water, together with particulated solids, which choke includes
- an elongated body (16) having a fluid discharge port (17) downstream end spaced longitudinally from an inlet port (18)
- means forming a longitudinal cavity through said elongated body communicating said inlet port (18) with said discharge port (17) and
- a sleeve (24) removably positioned in said longitudinal cavity
- a fluid flow limiting bean (31) removably positioned at the downstream end of said sleeve (24), having uniform diameter axial flow passage (34) which opens into said discharge port (17)
- a flow adjusting valve means (in said) cooperative with said sleeve, having a seat segment (39) which (opens into) communicates with said uniform diameter axial flow passage (34)
- said flow adjusting valve means including a valve stem (46) operably positioned in said body (16) to define with said seat segment (39), an adjustable, tapered wall flow channel through said seat segment (39).
Dependencies are inferred from the claim text.