CFR > Title 30 - Mineral Resources > CHAPTER II—MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR > SUBCHAPTER B—OFFSHORE (parts 250 to 285) > PART 250—OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF > SUBPART E—Oil and Gas Well-Completion Operations (§250.500 to §250.530) > 250.524—When am I required to take action from my casing diagnostic test?

250.524—When am I required to take action from my casing diagnostic test?

You must take action if you have any of the following conditions:
(a) Any fixed platform well with a casing pressure exceeding its maximum allowable wellhead operating pressure (MAWOP);
(b) Any fixed platform well with a casing pressure that is greater than 100 psig and that cannot bleed to 0 psig through a 1/2 -inch needle valve within 24 hours, or is not bled to 0 psig during a casing diagnostic test;
(c) Any well that has demonstrated tubing/casing, tubing/riser, casing/casing, riser/casing, or riser/riser communication;
(d) Any well that has sustained casing pressure (SCP) and is bled down to prevent it from exceeding its MAWOP, except during initial startup operations described in § 250.521 ;
(e) Any hybrid well with casing or riser pressure exceeding 100 psig; or
(f) Any subsea well with a casing pressure 100 psig greater than the external hydrostatic pressure at the subsea wellhead.