DEVICE FOR FLUID STREAMING WITH PRESSURE-DEPENDENT FLOW SWITCHING UNIT Russian patent published in 2015 - IPC F15D1/02 E21B43/12 

FIELD: oil and gas industry.

SUBSTANCE: device comprises a cavity to measure pressure, the first flowing channel, adaptor with variable pressure and pressure-dependent flow switching unit, at that the first flowing channel is connected functionally to the cavity for pressure measurement and adaptor with variable pressure, at that pressure-dependent flow switching unit adjoins the adaptor with variable pressure. According to embodiment at change in one fluid characteristic fluid delivery to the cavity is changed in order to measure pressure. In one embodiment change lies in increased intensity of flow delivery to the cavity in order to change pressure. In another embodiment change lies in decreased intensity of flow delivery to the cavity in order to change pressure. Fluid flow regulator comprises the device for fluid streaming; the second flowing channel; the third flowing channel; and the fourth flowing channel.

EFFECT: fluid flow regulation between several zones.

45 cl, 5 dwg