内防喷器是一种井口快速防喷工具。是在钻井中发生井涌（溢流）时，快速将内防喷器连接在钻柱顶端，用以控制井涌和井喷。它具有承压高、放喷功能、密封可靠、操作方便、开关迅速等优点。
Inside BOP
Inside Blowout Preventer is a quick well head preventer which is the necessary tool assigned by the
international Association of Drilling Contractors (IADC)in drilling operationns. When the blowout is happened during drilling tools are coming out of hole the
inner blowout preventer is connected to the top of drill string in order to control well kick or blowout.
The inside blowout preventer is needed,because the drill pipes as much as possible shall be put into
hole again.The inside blowout preventer in fig.1. is the new developed product which has been used to
substitute import product and used in some big oilfields in China. After being tested and used by the
c***umers,it has fully proved that the features and c***truction for the product has caught up the
international levels.
内防喷器技术参数
Specification of Inside Blowout Preventer :
|
连接螺纹 Connection |
外 径 O.D(in) |
内径 I.D(in) |
长度 length（in） |
重量 Weight(Kg) |
|
2-3/8IF |
3-3/8″-3-3/4″ |
1-1/2″ |
26″ |
27 |
|
2-7/8IF |
4-1/8″-4-1/4″ |
1-3/4″ |
28″-30″ |
40 |
|
3-1/2IF |
4-3/4″-5-1/4″ |
2″ |
30″-31″ |
57 |
|
4IF |
6-1/4″-6-3/4″ |
2-1/2″ |
33″-34″ |
110 |
|
4-1/2IF |
6-3/8″-7″ |
2-13/16″ |
33″-34″ |
120 |
|
5-1/2FH |
7″-7-1/2″ |
2-13/16″ |
33″-34″ |
140 |
|
6-5/8REG |
8″ |
2-13/16″ |
34″ |
180 |
|
7-5/8REG |
9-1/2″ |
2-13/16″ |
34″ |
220 |