UNIT FOR DUAL OPERATION OF SEVERAL PRODUCTION FACILITIES AT ONE WELL (VERSIONS) AND SHUTDOWN VALVE OF REVOLVING TYPE Russian patent published in 2015 - IPC E21B43/14 E21B34/10 

FIELD: oil and gas industry.

SUBSTANCE: unit includes a packer, hydraulic channels, which number corresponds to the number of production facilities. All channels are connected hydraulically to the aggregated hydraulic channel equipped with a pump unit, and each of them is connected to the respective production facility. The unit comprises also a shutdown valve, which is designed to open/close the hydraulic channel of one of disengaged production facility to the pump unit. One of packers is installed above the upper production facility. The shutdown valve is placed below it or in its hydraulic channel and made as a shutdown valve capable to open/close hydraulic channel of the production facility by generating pressure drop by a control hydraulic signal. The shutdown valve comprises a body with a spring-loaded hollow element installed in it; the element is capable of reciprocative axial movement and of rotary traverse around the vertical axis, it is equipped with a saddle in its upper part and a shutoff device and radial openings in the wall, as well as with guides in the lower part matching the guides in the body, which ensure its turning around the vertical axis at reciprocative axial movement of the element when pressure drop generated by the control hydraulic signal impacts it, at that opening/closing of the radial openings is ensured for hydraulic channels. In the body there are hydraulic channels, each of them is coupled hydraulically by its one end to the respective production facility and by its other end to the element cavity by the above radial opening in the wall of the above element in open position, at that the element cavity id coupled to the aggregated hydraulic channel from the side of the shutoff device.

EFFECT: improved efficiency of dual operation of several production facilities at the same well.

20 cl, 4 dwg