| 摘要 |
<p>A parallel passage-typed flow controller includes a main fluid passage (1) and one or more small throttling passages (2) distributed around the main fluid passage (1) in parallel. An inner end of the small throttling passage (2) is provided with a female thread (6) for mounting a throttling nozzle or a plug (5). Two ends of the controller are respectively provided with a male thread (3) and a female thread (4) for connecting with an oil pipe of a water cone control string of a horizontal well. By the controller, the distribution density of the flow controller can be increased so as to reduce the flow of each flow controller, to uniformly supply liquid to the formation, to prevent the formation of the water cone and the high-speed washout that may rapidly change the hydraulic parameter of the flow controller, and to reduce the cost of the cone control technology of the horizontal well.</p> |
