JET DEVICE FOR BYPASS OF ANNULAR GAS Russian patent published in 2022 - IPC E21B34/06 E21B43/12 

FIELD: oil industry.

SUBSTANCE: invention relates to the field of oil industry; it can be used to bypass gas from an annular space of a well operated by a submersible installation of an electric centrifugal pump into a column of pumping and compressor pipes (hereinafter – PCP). A jet device for bypass of annular gas is located in the PCP column and is installed above the dynamic level. The jet device contains a check valve that communicates the annular space with a cavity of the PCP column. The device is made of two symmetrical halves in a longitudinal section, one of which is fixed with the check valve, and the second one has the possibility of longitudinal movement inside the PCP column and is connected via permanent magnets to a spring-loaded piston placed in a cylinder parallel to the axis of the PCP column. The lower end of the cylinder communicates with the annular space, and the upper end communicates with the cavity of the PCP column. The piston is spring-loaded from above. The spring is located in a supra-piston cavity and rests on top of a grate made with the possibility of passing a reservoir medium through it from a hole connecting the cavity of the PCP column to the supra-piston cavity to the piston. A non-magnetic insert with a width equal to the width of magnets and a length equal to the stroke length of the movable half of the jet device is provided between magnets in the case.

EFFECT: increase in the reliability and efficiency of a submersible installation of an electric centrifugal pump by increasing its efficiency.

1 cl, 3 dwg