4.2
Lock Mandrel with Equalizing Valve(Melon)& Housing
When
combining a Lock Mandrel assembly to a melon type equalising valve
and housing, they form a XX plug assembly which is used to hold top &
bottom well pressure set in a Landing Nipple. This allows repair or
replacement work to be carried out while the pressure is contained.
This design allows fluid bypass when run in to set the lock with a
running prong attached to a running tool.
Available
tool size as shown.
|
Lock
Size
|
Tubing
Size
|
Fishing
Neck
I.D.
|
|
1.875＂X
|
2
3/8＂
|
1.380＂
|
|
1.875＂XN
|
|
2.313＂X
|
2
7/8＂
|
1.810＂
|
|
2.313＂XN
|
|
2.750＂X
|
3
1/2＂
|
2.310＂
|
|
2.750＂XN
|
|
2.813＂X
|
|
2.813＂XN
|
|
3.313＂X
|
4＂
|
2.620＂
|
|
3.313＂XN
|
|
3.813＂X
|
4
1/2＂
|
3.120＂
|
|
3.813＂XN
|
| 
