§ 250.424 - What are the requirements for prolonged drilling operations?

Latest version.

Link to an amendment published at 81 FR 26019, April 29, 2016.
If wellbore operations continue for more than 30 days within a casing string run to the surface:
(a) You must stop drilling operations as soon as practicable, and evaluate the effects of the prolonged operations on continued drilling operations and the life of the well. At a minimum, you must:
(1) Caliper or pressure test the casing; and
(2) Report the results of your evaluation to the District Manager and obtain approval of those results before resuming operations.
(b) If casing integrity has deteriorated to a level below minimum safety factors, you must:
(1) Repair the casing or run another casing string; and
(2) Obtain approval from the District Manager before you begin repairs.

                    
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