The Succeed  MCV to achieve the bypass open and close in umlimated times, Thus, multiple connections and disconnections between water hole and annulus can be realized  by one drap ball and flow rate control. It can be use for:

            Protect BHA (When pump LCM, Spotting Acid and  Mud)

            Horizontal drilling (Boosting annular velocities and Low side cuttings cleanout ）

Borehole enlargement(Cutting acceleration while reaming）

            Work-over and completions(Enhance Well bore cleanout)

II. Features and benefit:

1. Simple operation that requires only one ball;

2. Quick switching of working mode,  

3. 60 Second cycle time with ball on seat;

4. Unlimited cycling between bypass/non-bypass;

5. Variable drop ball size; Flexible compatibility with various string ID’s;

6. Tool position clearly indicated by SPP;

7. Save the time of drilling and taking out the activation ball collector;

8. Automatic emptying of pipe string during drilling;

9. Unlimited cycle switching can be realized by flow rate control without multiple activation balls;

10. can be configured in any position in the drill string does not require liquid through the hole above the tool;

11. Allow fishing operations under the tool before the ball is dropped or after the borehole passage is opened through the activation ball of the fishing seat seal;

12. . When the pump rate decreases significantly, the bypass is automatically closed to maintain well control safety.