There is an upcoming" P&A wave" of wells that need to be permanently plugged and
abandoned, especially in mature, offshore areas such as the North Sea and Gulf of Mexico …

Debonding of well cement towards casing or rock, ie microannuli formation, is a typical
failure mode of cement barriers. Consequently, such microannuli may act as leak paths …

Leakages of greenhouse gases, such as methane and carbon dioxide from wells, may have
considerable environmental consequences. Although much emphasis is currently put on …

This paper discusses a new technology that helps to identify and differentiate multiple
downhole well integrity events-tubing leaks, casing leaks, flow behind casing and …

At the end of their design life, petroleum wells are removed from production and
decommissioned. Decommissioning (also referred to as abandonment) is the point where a …

The cement between the casings and formation is a critical barrier element for ensuring
zonal isolation. Shrinkage during curing and mechanical or thermal loads applied during …

With the increasing number of aging fields and wells worldwide, a large number of wells will
have to permanently plugged and abandoned in the coming decades. Today's technical …

Preparation and execution of a CO2 storage pilot project is one of the first logical steps in the
effort to kick-start CCS in the region of Central & Eastern Europe, utilizing onshore …

Maintaining integrity is a major concern throughout the lifecycle of a well, especially during
the decommissioning stage. Regulatory requirements mandate that barriers be established …

Abstract In South America, the discussion regarding permanent plug and abandonment
(P&A) at the end of the useful life of the fields is relatively recent, but it has become …