the logging team can open reserve mud circulation channel when they need mud circulation

Bypass Sub with Reserve Mud Circulation

Security products, in logging, once mud channel of tool is blocked, the logging team can open reserve mud circulation channel when logging team need mud circulation. We have products suitable to 3 1/2 drill rod and 5 drill rod. According to custom's request, we can control discharging pressure flow by adjusting the number of pressure relief valves.