FIELD: oil and gas industry.
SUBSTANCE: group of inventions relates to tool assemblies placed in a wellbore, as well as to methods of deployment and pressure testing of a sealing tool in a wellbore. A tool assembly disposed in a wellbore comprises: a body having an outer surface defining an outer diameter and an inner surface defining an inner diameter; a sealing member connected to the housing with a sealing surface of a sealing tool, intended for pressure testing of the seal between the sealing tool and a receptacle located downhole; and a projection extending from the inner diameter of the body. The protrusion is movable between a connected position and a disconnected position in response to the application of a predetermined pressure value from the surface of the wellbore. A protrusion protrudes from the outer surface of the housing for connection to a sealing tool in a connected position. The protrusion does not protrude beyond the outer surface of the housing in the detached position. The tool assembly further comprises a rod that is located in the inner diameter of the body and is movable between the position of running into the wellbore and the working position in response to the application of a predetermined pressure value from the surface of the wellbore. The specified preset pressure value is greater than the test pressure value applied from the surface to the seal pressure tool assembly between the sealing tool and the receptacle. The specified protrusion is adapted to move from the connected position to the disconnected position in response to the movement of the rod from the position of the descent into the wellbore to the operating position.
EFFECT: said invention is aimed at simplifying the manipulation of the downhole equipment when testing the seal between the downhole tool and the receiving socket in the wellbore, as well as in increasing the reliability of the joint operation of the tool assembly and the downhole tool.
12 cl, 9 dwg
Authors
Dates
2021-03-24—Published
2017-11-14—Filed