If secondary control cannot be properly maintained, emergency procedures can be implemented to prevent the loss of control. Procedures to be applied depend on the particular operating conditions. Two common procedures involve the use of barytes plugs and cement plugs.

Barite Plugs

A barite plug is a slurry of barite in fresh water or diesel oil which is spotted in the hole to form a barite bridge that will seal the flow and allow control of the well to be re-established.

The…

Cement Plugs

A cement plug can be used to shut off a downhole flow. However, this generally involves abandonment of the well and loss of most of the drilling tools. It is also likely that the string will become…

Well Control - barytes and cement plugs.

If secondary control cannot be properly maintained, emergency procedures can be implemented to prevent the loss of control. Two common procedures involve the use of barytes plugs and cement plugs.

1.…