High Pressure. Wells are considered as High Pressure when: the maximum pore pressure of any porous formation to be drilled through exceeds a hydrostatic equivalent of 0.18bar/m (0.8psi/ft) or a well which requires an equivalent mud weight of 1.85 SG (15.4ppg) or requiring pressure control equipment with a rated working pressure in excess of 69Mpa (690 bar or 10,000psi).

Source: OGP Report No. 476, Recommendations for enhancements to well control training, examination and certification, International Association of Oil & Gas Producers, October 2012. Global Standards




Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards


High Pressure.

Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards

Source: Deepwater Well Control Guidelines. IADC Guidelines

Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards

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