| 摘要 |
A flow control screen tube for use in an oil recovery process comprises: a base tube (1) with a base tube inlet (11); a filter tube (2) nested outside the base tube, a fluid guide layer (3) being provided between the base tube and the filter tube; a flow control device (4) with a flow control device inlet (41), a flow control passage (42), and a flow control device outlet (43), wherein the flow control device inlet is in fluid communication with the fluid guide layer, and the outlet of the flow control device is in fluid communication with the base tube inlet. The tube has a simple structure and low manufacturing cost, and effectively satisfies oil recovery needs. |
