WORK MODULE FOR UNDERWATER BOREHOLE WORKS Russian patent published in 2015 - IPC E21B33/76 E21B41/04 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the work module for the underwater borehole works in underwater oil wells. The work module for the underwater borehole works executed from the surface ship in the well through the well head, at that this work module contains: load-carrying structure; pipe block secured to the said load-carrying structure and having two opposite ends, internal diameter, and cavity, made with possibility of the work tool insertion to increase pressure in the given cavity to the borehole pressure upon connection to the well head or to the blowout preventor, installed above the said well head, prior to opening of at least one gate of the well head and the said tool run in the well; connecting element connected with the first end of the said pipe block to ensure connection to the well head; wireless work tool with outside diameter provided with power unit. The said connecting element has open first end connected with the well head or blowout preventor, and through hole ensuring channel for the fluid flow from the first end to the cavity.

EFFECT: improved work module for more ecological underwater borehole works.

18 cl, 13 dwg