METHOD AND SYSTEM FOR CONTAINMENT OF UNCONTROLLED FLOW OF FLUIDS FLOWING FROM COLLECTOR TO ENVIRONMENT Russian patent published in 2016 - IPC E21B33/76 E21B29/08 

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to facilities for containment of uncontrolled flow of fluids flowing from the collector to environment. The method is suggested to provide access to fluid flow and to control it through the system of underwater well pipes above or below bottom, and this method contains the following stages: coverage of at least a section of the pipe system containing at least two pipes by containment system with protective shell, at that the pipe system is placed above or below the bottom; sealing of the protective shell around the pipe system in order to form a barrier between pressure outside the protective shell and pressure inside the protective shell; connection of the first pipe in the pipe system with the first bushing of penetration device forming a part of the containment system; penetration of the first pipe in the pipe system by the first bushing; advancement of the first bushing between the fist pipe and the second pipe installed in the first pipe; attachment of the first bushing to the first pipe and creation of sealing between the first bushing and the first pipe. The device and method for penetration are also suggested for implementation of the above method.

EFFECT: reliable and effective access to the well through multiple casing pipes with sealing maintained in them.

24 cl, 12 dwg