Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Drill string float valves<br />
A float valve is placed in the drill string<br />
to prevent upward flow of fluid or gas<br />
inside the drill string.<br />
This is a special type of back pressure<br />
check valve.<br />
When in good working order it will prohibit<br />
backflow and a potential blowout through<br />
the drill string.