EQUIPMENT FOR WELL PERFORATOR CONNECTION TO TUBING STRING Russian patent published in 2009 - IPC E21B17/03 E21B43/11 

FIELD: oil-and-gas production.

SUBSTANCE: invention related to boring and production of oil, gas and injection wells, particularly to equipment for reservoir secondary opening by creation perforation slots in production strings and generation filtration canals in bottom hole zone. Equipment for well perforator connection to tubing string consists of perforator hydrocylinder case and bypass valve for case connection to tubing string. Movable sleeve located between bypass valve and the perforator hydrocylinder case. The sleeve fixed on the perforator hydrocylinder case; connection fitting fixed on the bypass valve and located with one of its part in conjugate part of the bypass valve and with other part in - the sleeve cavity with possibility of the fitting free rotation relatively to the sleeve. The sleeve installed with gap relatively to the bypass valve back, and the fitting - with gap relatively to back of the perforator hydrocylinder case. The sleeve fixed on the perforator hydrocylinder case with thread, and fitting fixed on bypass valve with thread.

EFFECT: perforator operational mechanical rate increase, which make it more reliable and usable in multipurpose.

3 cl, 1 dwg