The loss of well integrity in oil and gas and CO 2 injection wells provokes leaks that
potentially pollute underground water reservoirs and the surrounding environment. The …

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

Cement sheaths are among the most important well barrier elements and cement sheath
integrity is thus important to maintain zonal isolation. Repeated pressure cycling in a well …

High-temperature (HT) geothermal wells can provide green power 24 hours a day, 7 days a
week. Under harsh environmental and operational conditions, the long-term durability …

Annular cement sheath is considered to be one of the most important barrier elements in the
well, both during production and after well abandonment. It is however well-known that …

Abstract Development of geothermal energy sources is an important contribution to ensure
the “green shift” from fossil fuels to more sustainable sources of energy. Currently, most …

Cracking in the cement sheath of oil and gas wells is a major concern because it
compromises well integrity and can lead to uncontrolled leaks of hydrocarbons, affecting …

In the transition from fossil fuels to sustainable, renewable energy sources, development of
geothermal energies sources provides an important contribution to ensure the green shift …

Formation of microannuli at the interface of cement-casing can create well integrity issues. X-
ray CT and Optical microscopy are technological trends that may have potential for direct …

Hydrocarbons, such as oil and gas, are often found in underground reservoirs. Boreholes
are drilled into the reservoirs to extract these resources and steel pipes, named casings, are …