AUTONOMOUS INFLOW REGULATOR Russian patent published in 2020 - IPC E21B34/08 E21B43/12 E21B43/32 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to equipment used for oil production, specifically to fluid flow control systems in well. Independent inflow regulator installed in the well on side surface of pipe between pipe and annular space, comprises two hydraulic resistances, made in the form of one opening in the cover and several holes in the housing bottom. Between cover and bottom with possibility of axial movement disc is installed, performing a valve function, axial movement of which on one side is limited by cover, and on the other side with axial orientation ledges arranged at the housing bottom. In the cover hole is made in the center. In bottom holes are located along edge of inner cavity of housing. At least three ledges of axial orientation of the disc are arranged evenly along the circumference between the holes in the body bottom.

EFFECT: increased reliability of autonomous regulator of inflow due to prevention of colmatation of inner cavity of device and increased reliability of disk orientation.

6 cl, 7 dwg