114-245 mm çapında elektro kaynaklı muhafaza boruları

Purpose Electric-welded casing pipes with a diameter of 114-245 mm, wall thickness up to 11.1 mm, with a threaded and couplings are applied for the construction of oil, gazokondesatno and gas wells both in normal and in difficult geological conditions, characterized by intense crushes loads on the pipe body. Certification Electric-welded casing pipes of production of JSC "VMZ" are delivered according to the standards of API Spec 5CT or GOST R 53366 and similar specifications. Equipment Thread effected on two pairs of Japanese machines from Hitachi (Japan), as well as on precision machines with CNC of the company Emag (Germany). Threaded connections have tighter manufacturing tolerances, processed at high-precision specialized equipment and undergo a thorough control procedure in terms of the manufacturer. — Each pipe is 100% automatic ultrasonic testing of the weld and the pipe body and hydraulic testing. — The weld is subjected to local heat treatment and strength equal to the pipe body. — The outer surface of the casing is protected with preservative coating (on request). — All pipes have marking paint and marking in accordance with the requirements of the current normative-technical documentation. Is the casing come with protection of threaded pipe joints and couplings. — In coordination with the manufacturer, in accordance with the API 5CT standard, it is possible to supply casing pipes with threaded connections not covered by the standard. Flexible delivery of casing pipes with a beveled chamfer of the clutch to reduce friction when pulling the casing in-line space of the borehole.