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The roller stabilizer (drilling reamer) is used for all kinds of reaming stabilization in drilling operation, especially the function of stabilization in drilling of the abrasive formation. It is a very popular tool for hole size from 4 5/8 to 26″. Additionally, it can be used in different hole when same body is equipped with different bearing block and roller. The body is made of modified alloy steel, fully heat treated to 285~341Brinell hardness and 54J minimum impact strength.
Rollers are available below:
1. Narrow-teeth type is used for cutting of hole wall for soft formation.
2.Wid-flat-teeth type is used for crushing into pieces of borehole wall for medium and hard formation.
3.Inserted tungsten carbide alloy type is for hard formation.
Thechnical specification and parameters:
Type |
Hole(in) |
Thread API |
O.D.(mm) |
I.D(mm) |
Overall |
O.D.on |
Roller |
Roller |
JKQ155 |
6 1/8 |
3 1/2" |
155 |
31.7 |
1470/1572 |
140 |
51 |
200 |
JKQ206 |
8 1/8 |
4"IF |
206 |
38 |
1600 |
160 |
70 |
200 |
JKQ212 |
8 3/8 |
4 1/2"REG |
212.7 |
44 |
1600 |
160 |
70 |
200 |
JKQ215 |
8 1/2 |
4 1/2"REG |
215.9 |
50.8 |
1730/1844 |
160 |
70 |
250 |
JKQ244 |
9 5/8 |
NC50 |
244 |
57 |
1800 |
178 |
70 |
250 |
JKQ311 |
12 1/4 |
6 5/8"REG |
311.2 |
71 |
1773/2127 |
203 |
105 |
300 |
JKQ444 |
17 1/2 |
7 5/8"REG |
444.5 |
76 |
2200 |
228 |
140 |
350 |
JKQ660 |
26 |
7 5/8"REG |
660.4 |
76 |
3000 |
254 |
178 |
400 |
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