CEN/TC 12
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 28761 | prEN ISO 10426-2 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 2: Testing of well cements (ISO/DIS 10426-2:2010) | Izstrādē |
| 83520 | prEN ISO 10426-1 rev | Oil and gas industries including lower carbon energy — Cements and materials for well cementing — Part 1: Specification | Izstrādē |
| 37357 | prEN ISO 10424-1 rev | Petroleum and natural gas industries -- Rotary drilling equipment -- Part 1: Rotary drill stem elements | Izstrādē |
| 72 | prEN ISO 10422 | Petroleum and natural gas industries - Threading, gauging and thread inspection of casing, tubing and line pipe (ISO/DIS 10422:2001) | Izstrādē |
| 62769 | prEN ISO 10417 rev | Petroleum and natural gas industries - Subsurface safety valve systems - Design, installation, operation and redress | Izstrādē |
| 35454 | prEN ISO 10417 rev | Petroleum and natural gas industries - Subsurface safety valve systems - Design, installation, operation and redress | Izstrādē |
| 25412 | prEN ISO 10414-2 | Petroleum and natural gas industries - Field testing of drilling fluids - Part 2: Oil-based fluids (ISO/DIS 10414-2:2010) | Izstrādē |
| 156 | prEN ISO 10407-2 | Petroleum and natural gas industries - Rotary drilling equipment - Part 2: Inspection and classification of used drill stem elements (ISO/FDIS 10407-2:2008) | Izstrādē |
| 155 | prEN ISO 10407-1 | Petroleum and natural gas industries - Drilling and production equipment - Part 1: Recommended practice for drill stem design and operating limits | Izstrādē |
| 25534 | prEN 14919-2 | Petroleum and Natural Gas Industries - Cathodic Protection for pipeline transportation systems - Part 2: Offshore pipelines (ISO 15589-2:2004 modified) | Izstrādē |
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