Abstract
Through recent developments of drilling technology in Oil and Gas business, technical requirements of OCTG increase in multiplicity and variety, especially in HPHT deep wells, critical wells of corrosive environment and economical wells of shale gas.
High performance OCTG are developed such as high strength OCTG for high pressure and high temperature, corrosion resistance OCTG and premium connection of OCTG.
This article will explain the general selection guidance of OCTG technology for deep well applications or shale gas applications.
