Drill pipes with end upsetting and stabilizing groove (its counterparts) are manufactured by Burilnye Truby LLC from aluminum alloys such as D16Т or 1953Т1 by direct hydraulic hot extrusion.
The light-alloy casing (LAC) is reasonable to be used in the operating wells with aggressive formation fluid with high hydrogen sulphide and carbon dioxide where the standard steel pipes cannot use utilized, however, the imported pipes of special steel grades require greater costs to be incurred for purchasing such pipes.
Light-alloy inserted-joint tubing (LAT) are made of aluminum alloys D16T and 1953T1 and designed for operations related to development and exploitation of oil and gas wells as well as for process operations to intensify oil and gas exploitation. Apart from the high specific strength, aluminum alloys are neutral to hydrogen sulphide and carbon dioxide that are often available in the formation fluids making it one more advantage in operation in aggressive medium. LAT became common use in installation of the cement plugs in the well bore with regards to being drilled out easily.
Integral-joint tubing is used
Integral-joint tubing are made with externally and internally upset tips for threading and can be easily drilled out by the rock drilling bit.
Non-magnetic integral-joint drill collars are used:
Heavy light-alloy tubing with internal end protector is used: