§ 250.433. What are the diverter actuation and testing requirements?
159 words·~1 min read·
/us/cfr/t30/s§ 250.433·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
When you install the diverter system, you must actuate the diverter sealing element, diverter valves, and diverter-control systems and control stations. You must also flow-test the vent lines.
(a)For drilling operations with a surface wellhead configuration, you must actuate the diverter system at least once every 24-hour period after the initial test. After you have nippled up on conductor casing, you must pressure-test the diverter-sealing element and diverter valves to a minimum of 200 psi. While the diverter is installed, you must conduct subsequent pressure tests within 7 days after the previous test.
(b)For floating drilling operations with a subsea BOP stack, you must actuate the diverter system within 7 days after the previous actuation. For subsequent testing, you may partially actuate the diverter element and a flow test is not required.
(c)You must alternate actuations and tests between control stations. \[76 FR 64462, Oct. 18, 2011, as amended at 84 FR 21975, May 15, 2019\]