Inside BOP
Features:
The inside BOP is a necessary blowout prevention tool as specified by IADC during drilling. In the event of kick (overflow) during POOH, it is needed to use inside BOPs, for the most important thing here is to run as many drill pipes as possible in hole. This can be realized only when the drill string is fitted with a back pressure device.
Technical Parameter:
|
Connection thread |
O.D（in） |
ID （in） |
Length |
|
2 3/8IF |
3 3/8″～ 3 3/4″ |
1 1/2″ |
26″ |
|
2 7/8IF |
4 1/8″～ 4 1/4″ |
1 3/4″ |
28″～ 30″ |
|
3 1/2IF |
4 3/4″～ 5 1/4″ |
2″ |
30″～ 31″ |
|
4IF |
6 1/4″～ 6 3/4″ |
2 1/2″ |
33″～ 34″ |
|
4 1/2IF |
6 3/8″～ 7″ |
2 13/16″ |
33″～ 34″ |
|
5 1/2FH |
7″～ 7 1/2″ |
2 13/16″ |
33″～ 34″ |
|
6 5/8REG |
8″ |
2 13/16″ |
34″ |
|
7 5/8REG |
9 1/2″ |
2 13/16″ |
34″ |
