The Failure Analysis and Improvement of a Type of Rotating BOP

For the problems of one type of rotating blowout preventer in the production process, we proposed several formulas and ana- lyzed the formulas carefully. We eventually hit upon a formula that would be acceptable, We use oil cooling system instead of water cooling system for the filling part; increase righting sets for the center tube; change the recycling mode of the original lubricant and so on, then it can improve a series of problems of the rotating BOP greatly.