30 C.F.R. § 250.451 What must I do in certain situations involving BOP equipment or systems?
Title 30 - Mineral Resources
The table in this section describes actions that lessees must take when certain situations occur with BOP systems during drilling activities. [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
Blowout Preventer (BOP) System Requirements
§ 250.451 What must I do in certain situations involving BOP equipment or systems?
------------------------------------------------------------------------ If you encounter the following situation: Then you must . . .------------------------------------------------------------------------(a) BOP equipment does not hold the Correct the problem and required pressure during a test. retest the affected equipment.(b) Need to repair or replace a surface or First place the well in a subsea BOP system. safe, controlled condition (e.g., before drilling out a casing shoe or after setting a cement plug, bridge plug, or a packer).(c) Need to postpone a BOP test due to Record the reason for well-control problems such as lost postponing the test in the circulation, formation fluid influx, or driller's report and stuck drill pipe. conduct the required BOP test on the first trip out of the hole.(d) BOP control station or pod that does Suspend further drilling not function properly. operations until that station or pod is operable.(e) Want to drill with a tapered drill- Install two or more sets of string. conventional or variable- bore pipe rams in the BOP stack to provide for the following: two sets of rams must be capable of sealing around the larger-size drill string and one set of pipe rams must be capable of sealing around the smaller-size drill string.(f) Install casing rams in a BOP stack.... Test the ram bonnets before running casing.(g) Want to use an annular BOP with a Demonstrate that your well rated working pressure less than the control procedures or the anticipated surface pressure. anticipated well conditions will not place demands above its rated working pressure and obtain approval from the District Manager.(h) Use a subsea BOP system in an ice- Install the BOP stack in a scour area. glory hole. The glory hole must be deep enough to ensure that the top of the stack is below the deepest probable ice-scour depth.------------------------------------------------------------------------
