초록

An in-line flow control device for a well chokes flow through a conduit while allowing access therethrough.

대표청구항 ▼

1. A downhole flow control device, comprising:a body defining a first passageway and a second passageway; a closure member coupled to the body and movable to selectively, substantially prevent flow through the first passageway; and a sleeve valve in the body selectively positionable at an open posit

1. A downhole flow control device, comprising:a body defining a first passageway and a second passageway; a closure member coupled to the body and movable to selectively, substantially prevent flow through the first passageway; and a sleeve valve in the body selectively positionable at an open position, a closed position and a plurality of predetermined positions therebetween, the sleeve valve being adapted to regulate the flow through the second passageway, wherein the open position enables full bore flow. 2. The device of claim 1, wherein the closure member is a plug.3. A downhole flow control device, comprising:a body defining a first passageway and a second passageway; a closure member movable to selectively, substantially prevent flow through the first passageway; and a sleeve valve in the body selectively positionable at and between an open position and a closed position adapted to regulate the flow through the second passageway, wherein the closure member is a flapper valve. 4. The device of claim 3, wherein the flapper valve is controlled from the surface via a control line.5. A downhole flow control device, comprising:a conduit having a first bore therethrough; the conduit further defining at least one second bore radially surrounding the first bore, the first bore and the at least one second bore being oriented in an axial direction; a sleeve member in the conduit selectively movable at predetermined increments between an open position and a closed position to choke the flow through the second bore; and a flapper movable between opened and closed positions to control flow in the first bore. 6. The device of claim 5, wherein the sleeve member defines a plurality of sleeve ports therethrough, the sleeve ports selected to provide a predetermined flow area depending upon the position of the sleeve member.7. The device of claim 5, wherein the second bore has opposing ends in fluid communication with the first bore.8. The device of claim 7, further comprising a closure member adapted to control the flow through the first bore, the closure member positioned between the opposing ends of the second bore.