Many, if not all of the oil and gas fields under development, have leaking wells. There are a lot so-called abandoned, ownerless Subsoil users, by one way or another, make efforts to eliminate leakage in such At same time there no universal reliable techniques. The problem well is seriously increasing when wells decommissioned (plugged P&A), even more so development field finished. techniqu...

The transition from fossil energy to clean is an ongoing trend. Because geothermal buried beneath oil and gas wells, it desirable convert abandoned wells wells. candidate can be dry holes in exploration or end-of-life depleted reservoirs. There a knowledge gap fill between the well conversion engineering, that is, factors affecting performance of are not fully understood. This work investigated...

Many oil/gas wells are abandoned or approaching their end-of-life. Converting them into geothermal can significantly improve the economics of field operations and reduce carbon emissions. While such conversion has proven viable in some areas, this technology not yet been considered many other areas. It is highly desirable to investigate feasibility converting energy production local geological ...

Preexisting wells and well bores are high-permeability pathways through the crust, and as such present zones of elevated risk to CO2 storage projects. Although current well closure and abandonment technology appears sufficient to contain CO2 at most sites, individual wells may suffer from a variety of factors that limit their integrity, including improper cementation, improper plugging, overpre...

The pre-Vesalian history of anatomical illustration, including its ancient Greek and Roman periods, is surveyed. While dissection was abandoned in Alexandria under the Romans, it was revived in Italy during the Renaissance, and the invention of printing prompted the avalanche of documents which has cascaded ever since. The considerable contribution of the late Professor Lawrence H. Wells to the...