View all text of Subjgrp 96 [§ 250.519 - § 250.531]
§ 250.521 - When do I have to perform a casing diagnostic test?
(a) You must perform a casing diagnostic test within 30 days after first observing or imposing casing pressure according to the following table:
| If you have a . . . | you must perform a casing diagnostic test if . . . | (1) fixed platform well, | the casing pressure is greater than 100 psig. | (2) subsea well, | the measurable casing pressure is greater than the external hydrostatic pressure plus 100 psig measured at the subsea wellhead. | (3) hybrid well, | a riser or the production casing pressure is greater than 100 psig measured at the surface. |
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(b) You are exempt from performing a diagnostic pressure test for the production casing on a well operating under active gas lift.