GUIDE DEVICE FOR ENTERING SIDE SHAFT Russian patent published in 2016 - IPC E21B23/03 

Abstract RU 2601882 C1

FIELD: oil industry.

SUBSTANCE: invention relates to oil and gas industry and can be used for entering lateral shafts of multilateral well. Device includes guide part with diagonal cut, side hole with nozzle for fluid passage from cut side and cylindrical part with retractable radial stock, located on side of side hole. Cylindrical part is made composite, consisting of upper and lower blocks, connected to each other above retractable stock by articulated joint with channel with flow section greater than section of side hole nozzle and to limitedly deflect lower block in relation to top one in opposite direction to stock. In upper block in cylindrical part, connected by cut elements to pipe string, lowered into side hole, free-fall seat is made.

EFFECT: technical result consists in providing possibility to input process equipment in side shaft of multilateral well.

1 cl, 3 dwg

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RU 2 601 882 C1

Authors

Akhmadishin Farit Foatovich

Ilalov Rustam Khisamovich

Mukhametshin Almaz Adgamovich

Dates

2016-11-10Published

2015-11-09Filed