This paper reviews the state of research in permanent barrier materials for plug and
abandonment of oil and gas wells to identify key strengths and weaknesses of each barrier …

Well integrity is defined as technical, operational, and organizational solutions specifically
aimed at the reduction of the risk of formation fluids release throughout a well's life cycle …

In this manuscript, we describe the second of two field demonstrations of microbially induced
calcium carbonate precipitation (MICP) performed in a failed waterflood injection well in …

Sustained casing pressure (SCP) is a common problem during an entire life span of oil and
gas wells. When conventional methods are deployed to resolve the issue, the methods …

A significant challenge is sustained casing pressure (SCP) during oil and gas production.
This study investigated a solid-free epoxy resin sealant to replace Portland cement …

Polyfluoroacrylate (PFA) is a hydrophobic and oleophobic polymer that is soluble in high
pressure carbon dioxide (CO 2). In this study, the ability of PFA-CO 2 solutions to greatly …

Plug and abandonment of offshore oil wells is a costly and time-consuming process, yet it is
necessary for the ever-increasing number of mature fields in the region of the Danish North …

Pressure activated sealant (PAS) has been proven safety and efficiency for quick leak
repairs in oil & gas production, due to the unique in-situ self-adaptive sealing property …

A good primary cementing job governs in a great part the producing performance of a well.
Successful zonal isolation, which is the main objective of any cementing job, primarily …

Potential upward leakage of CO2 and reservoir fluid within a leaky sequestration well poses
potential environmental and economic risks. This study explores the latest methods for fixing …