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What is 112 - Dual Circulating Sub about?

The Dual Circulating Sub is designed to provide a contingent circulating facility within a Coiled Tubing BHA when conventional circulation is lost. It has a rupture disc that can be activated to regain circulation. A drop ball can then be used to activate a hydraulic disconnect sub or secondary circulating piston to recirculate fluid.

Author

عباس روحیان

Language

EN