FIXTURE FOR PERFORATION OF CASED COLUMN IN WELL

摘要

FIELD: oil and gas industry. ^ SUBSTANCE: invention refers to oil and gas industry, particularly to methods and fixtures for secondary bed exposing. The fixture contains deflecting device with curved channel lowered into the cased tubes column wherein an engine is lowered with an output shaft connected by means of flexible shaft to cutting tool; the cutting tool is equipped with an arrester. The engine is equipped with an anchor fixing the engine against the tubes. Between the output and flexible shafts there is installed an intermediary shaft with a load connected to the output shaft and designed to limit axial travel. The curved channel is additionally equipped with an input from the top and output from the bottom guiding bushings. The flexible shaft is equipped with upper and lower centralizers which glidingly interact with input and output guiding bushings correspondingly. Thus, reliability and functionality of the fixture is upgraded. ^ EFFECT: upgraded reliability and functionality of fixture. ^ 3 cl, 3 dwg