Selective inflow control device based on cyclone resistance increasing effect
An inflow control and selective technology, applied in the production of fluids, wellbore/well components, earth-moving drilling, etc., can solve the problems of low fluid identification accuracy, difficult processing, unstable performance, etc.
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[0028] The present invention will be further described below in conjunction with accompanying drawing.
[0029] figure 1 Schematically shows a selective inflow control device based on swirling resistance increasing effect according to an embodiment of the present invention. According to the selective inflow control device based on the swirling resistance increasing effect of the present invention, it can automatically control water and stabilize oil.
[0030] Such as figure 1 As shown, the selective inflow control device based on the swirling resistance increasing effect described in this embodiment includes a central pipe 1 . The central pipe 1 is connected with a special precision sand control screen or other completion strings through a coupling. The device described in this embodiment also includes an outer cylinder 2 . The outer cylinder 2 is sheathed outside the central pipe 1 , and the lower end of the outer cylinder 2 is sealingly connected to the middle of the cen...
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