Among the activities included in proper site abandonment(wells) Actions taken to ensure permanent isolation of the fluids and pressures of exposed permeable zones within a well from the surface and from lower pressured zones, wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids abandonment(wells) Actions taken to ensure permanent isolation of the fluids and pressures of exposed permeable zones within a well from the surface and from lower pressured zones is considered the most important process. Typically it should prevent all physical hazard induced by the wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids, prevent any migrationThe movement of fluids in reservoir rocks of contaminants and prevent communication between originally separated hydrological systems. There are a lot of regulatory requirements on the subject of wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids abandonment(wells) Actions taken to ensure permanent isolation of the fluids and pressures of exposed permeable zones within a well from the surface and from lower pressured zones on an international, European-wide and national level.
The main international regulations are the "London ConventionInternational convention on the prevention of marine pollution by dumping of wastes and other matter, which was adopted at London, Mexico City, Moscow and Washington on 29 December 1972 and London ProtocolProtocol to the London Convention, adopted in London on 2 November 1996 but which had not entered into force at the time of writing", dealing with international treaties and the limitation on dischargeThe amount of water issuing from a spring or in a stream that passes a specific point in a given period of time of land based waste at sea, and the "OSPARConvention for the Protection of the Marine Environment of the North-East Atlantic, which was adopted at Paris on 22 September 1992 Decision 2007/2 and Agreement 2007-12" on regulations and protection of the marine environment. Additionally there is also a model regulatory framework by the International Energy Agency (IEAInternational Energy Agency).
Concerning regulations within the European Union the main documents on the subject are the EUEuropean Union Directive 2009/31/ECEuropean Commission from 25/6/2009 with regulations for permitting CO2Carbon dioxide storage(CO2) A process for retaining captured CO2, so that it does not reach the atmosphere and accompanying Guidance Documents and the EUEuropean Union CCSCarbon dioxide Capture and Storage Directives with relevance for CO2storage 2003/87/ECEuropean Commission, 2009/29/ECEuropean Commission and 2010/245/EUEuropean Union.
National regulations on wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids abandonment(wells) Actions taken to ensure permanent isolation of the fluids and pressures of exposed permeable zones within a well from the surface and from lower pressured zones are country specific but with similar details. In the European Union either the national regulations are based on the transposition of the EUEuropean Union Directive 2009/31/ECEuropean Commission (like in Spain where the CCSCarbon dioxide Capture and Storage Act 40/2010, which is a full transposition of the EUEuropean Union directive, entered into force on 31.12.2010), or it is based on amendments of already existing subsoil regulations (for example Denmark)