30 C.F.R. § 250.402 When and how must I secure a well?
Title 30 - Mineral Resources
Whenever you interrupt drilling operations, you must install a downhole safety device, such as a cement plug, bridge plug, or packer. You must install the device at an appropriate depth within a properly cemented casing string or liner. (a) Among the events that may cause you to interrupt drilling operations are: (1) Evacuation of the drilling crew; (2) Inability to keep the drilling rig on location; or (3) Repair to major drilling or well-control equipment. (b) For floating drilling operations, the District Manager may approve the use of blind or blind-shear rams or pipe rams and an inside BOP if you don't have time to install a downhole safety device or if special circumstances occur. [68 FR 8423, Feb. 20, 2003]
Title 30: Mineral Resources
PART 250—OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF
Subpart D—Oil and Gas Drilling Operations
General Requirements
§ 250.402 When and how must I secure a well?
