CONSTRUCTION tight connection for sectional DESCENT EQUIPMENT shank with multistage fracturing

摘要

The invention relates to oil and gas industry, namely to the devices for well completion, and can be used for the shutter of the sectional shank with multistage fracturing equipment to ensure its dohozhdenie to the design depth.; The result achieved by the use in the composition of the first "stem" section of the disconnector, which consists of a housing with an inner cylindrical mounting surface with integrated stopper for locking the coupling sleeve and a connecting nipple threads for connection to a casing liner string, and also coupling connecting that part of the second shank section and comprises a body having a fixing surface for fixing the stopper and the tip seal with the internal passageway. Tightness of interconnected sections is achieved due to the built-stopper, which locks the coupling, the locking surface on the coupling and the seal.