CEN/TC 12
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 24907 | EN ISO 13533:2001/AC:2006 | Petroleum and natural gas industries - Drilling and production equipment - Drill-through equipment (ISO 13533:2001/Cor.1:2005) | Izstrādē |
| 24883 | EN ISO 15138:2007 | Petroleum and natural gas industries - Offshore production installations - Heating, ventilation and air-conditioning (ISO 15138:2007) | Atcelts |
| 24883 | LVS EN ISO 15138:2008 | Petroleum and natural gas industries - Offshore production installations - Heating, ventilation and air-conditioning | Atcelts |
| 24634 | LVS EN ISO 13503-5:2006 | Petroleum and natural gas industries - Completion fluids and materials - Part 5: Procedures for measuring the long-term conductivity of proppants | Standarts spēkā |
| 24634 | EN ISO 13503-5:2006 | Petroleum and natural gas industries - Completion fluids and materials - Part 5: Procedures for measuring the long-term conductivity of proppants (ISO 13503-5:2006) | Izstrādē |
| 24633 | LVS EN ISO 13503-4:2007 | Petroleum and natural gas industries - Completion fluids and materials - Part 4: Procedure for measuring stimulation and gravel- pack fluid leakoff under static conditions | Standarts spēkā |
| 24633 | EN ISO 13503-4:2006 | Petroleum and natural gas industries - Completion fluids and materials - Part 4: Procedure for measuring stimulation and gravel-pack fluid leakoff under static conditions (ISO 13503-4:2006) | Izstrādē |
| 24609 | EN ISO 10426-2:2003/A1:2005 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 2: Testing of well cements - Amendment 1: Water-wetting capability testing (ISO 10426-2:2003/A1:2005) | Izstrādē |
| 24609 | LVS EN ISO 10426-2:2004 /A1:2006 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 2: Testing of well cements - Amendment 1: Water-wetting capability testing | Standarts spēkā |
| 24399 | EN ISO 13503-3:2005 | Petroleum and natural gas industries - Completion fluids and materials - Part 3: Testing of heavy brines (ISO 13503-3:2005) | Atcelts |
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