DEVICE FOR FLUID TRANSFER IN DOWNHOLE ENVIRONMENTS AND SYSTEM FOR USE IN DOWNHOLE ENVIRONMENTS Russian patent published in 2023 - IPC E21B17/42 E21B17/18 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions is related to a device for fluid transfer in downhole environments and a system for use in downhole environments. The device for fluid transfer in downhole environments contains a y-shaped block, the first lateral branch for the first lateral channel of the plurality of lateral channels, the second lateral branch for the second lateral channel of the plurality of lateral channels. The Y-shaped block has a main channel and a plurality of side channels formed therein. The main channel has the first end for connection with the tubing section and another end for connection with a branch of the main channel. Each side channel of the plurality of side channels has a threaded interface. The inner diameter of the main channel is larger than the inner diameter of the side channels. The first side branch for the first lateral channel of the plurality of lateral channels has the first threaded interface for connecting to the threaded interface of the first side channel and the second threaded interface configured to connect to the first threaded interface of the adapter. The second lateral branch for the second lateral channel of the plurality of lateral channels has the first threaded interface for connecting to the threaded interface of the second side channel and the second threaded interface configured to connect to the second threaded interface of the adapter. The first lateral branch and the second lateral branch are placed with the possibility of passing into one borehole after the connection of the first lateral branch and the second lateral branch with a y-shaped block. The first threaded interface and the second threaded interface of the first lateral branch and the second lateral branch are at least partially and simultaneously in a thread connection with the threaded interface of the first lateral channel, the threaded interface of the second lateral channel, the first threaded interface of the adapter and the second threaded means of interface of the adapter.

EFFECT: providing a strong threaded connection of the main channel with the side channels with an acceptable level of strength, without reducing the inner diameter of the main shaft.

14 cl, 7 dwg, 1 tbl