FIELD: oil and gas industry.
SUBSTANCE: device which is used as a plug during testing of a well, pipeline or similar equipment contains one or more damaging objects made of disintegrated/crushed material and these objects can be destroyed by means of action onto them from inside. According to the invention the plug contains an inner cavity communicating with the object that creates external pressure. The plug can be destroyed when liquid is supplied into the inner cavity so that pressure in it exceeds the limit value at which the plug is burst into pieces.
EFFECT: safe use of the device.
15 cl, 16 dwg
