Ball-type stabilizers have compact structure, small resistance while drilling, used for drilling horizontal wells and directional wells.
Specification:
OD(in) |
Body of Ends |
ID |
Length |
Connection of Both Ends(in) | |||
|
Stem Type |
Bottom Type | ||||||
|
Top end |
Lower end |
Top end |
Lower end | ||||
|
6～6 1/2 |
φ121 |
φ51 |
785 |
3 1/2IF |
3 1/2IF |
3 1/2IF |
3 1/2REG |
|
7～7 7/8 |
φ159 |
φ57 |
850 |
4 1/2IF |
4 1/2IF |
4 1/2IF |
4 1/2REG |
|
8～8 1/2 |
φ165 |
φ71 |
850 |
4 1/2IF |
4 1/2IF |
4 1/2IF |
4 1/2REG |
|
9～9 1/4 |
φ197 |
φ71 |
870 |
4 1/2IF |
4 1/2IF |
4 1/2IF |
4 1/2REG |
|
12～12 1/4 |
φ203 |
φ76 |
940 |
6 5/8REG |
6 5/8REG |
6 5/8REG |
6 5/8REG |