Abstract

Expandable tubular technologies (ETT) enable operators to explore in remote geologic regions and exploit reserves once considered unprofitable if drilled with conventional technology. In the past few years ETT has moved from a concept to a commercially viable way to solve variety of well challenges. In comparison to conventional well construction, expandable tubular technology has the potential of reducing the cost of well construction significantly and to give life to existing wellbores through capabilities for selective water shut-off, damaged casing and tubular repair by cladding .Results from practical application of ETT using various techniques have indicated that it can be applied in well bore construction, remediation and completion, all of which are main segments in well constructions. ETT#x2019;s application to multilateral wells can be achieved successfully with the use of formed metal technology. Some noticeable gaps associated with ETT include connections, corrosion, collapse, expansion force and annular sealing. Solutions are however being provide to eliminate these shortcomings.