Model” KKZ” Fixed Drill Reamer
Model “KKZ” Three-cones Reamer (Reamer as shortened below) is a kind of tool used to ream the existing borehole diameter during drilling process. Usually, it is put into the bottom hole with a drill bit so as to simultaneously implement drilling and reaming. Little drill bit used together with a reamer can reduce tripping time and speed up drilling.
Table 1 Specification and Performance Parameter of Three-cone Reamer KKZⅡ
|
Model |
Bore Hole Diameter mm(in) |
hole（Min. Pilot Bore）mm(in) |
Water hole mm(in) |
Neck |
bottom |
Overall length mm(in) |
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| Diameter mm(in) | length mm(in) | Thread mm(in） | Diameter mm(in) | thread mm(in) |
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|
KKZ311Ⅱ |
311.2(12) 1/4) |
215.9（8 1/2） |
38.1(1 1/2) |
203(8) |
457.2（18） |
6 5/8 REG |
203(8) |
4 1/2 REG |
1524（60） |
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|
KKZ444Ⅱ |
444.5(17) 1/2) |
266.7(10 1/2) |
57.2(2 1/4) |
203(8) |
457.2（18） |
6 5/8 REG |
203(8) |
6 5/8 REG |
1752（69） |
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|
KKZ660Ⅱ |
660.4(26) |
311.2(12 1/4) |
71.4(2) 13/16) |
203(8) |
710（27.9） |
6 5/8 REG |
203(8) |
6 5/8 REG |
2200(86.6) |
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|
KKZ762Ⅱ |
762(30) |
457.2(18) |
71.4(2) 13/16) |
203(8) |
700（27.5） |
6 5/8 REG |
203(9) |
7 5/8 REG |
1900(74.8) |
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|
KKZ914Ⅱ |
914.4(36) |
609.6(24) |
71.4(2) 13/16) |
229(9) |
914（35.9） |
7 5/8 REG |
229(9) |
7 5/8 REG |
2158(84.9) |
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|
KKZ813Ⅱ |
813（32） |
508(20) |
71.4(2) |
229(9) |
833(32.8) |
7 5/8 REG |
229(9) |
7 5/8 REG |
2077(81.8) |
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|
KKZ864Ⅱ |
864(34) |
558.8(22) |
71.4(2) |
229(9) |
914（35.9） |
7 5/8 REG |
229(9) |
7 5/8 REG |
2158(85) |
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Notes: if you need other specifications, please give us detailed description whey you order or inquire.
Table 2 parameter of drill pressure and drill rate in recommended stratum
|
Model |
Cone assembly |
Applied stratum |
Main feature of bit cutting |
Recommended parameter |
|
|
Drill pressure KN |
Drill rate（r/min） |
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|
KKZ660Ⅱ |
C0145（No.1 cone） |
Extreme soft stratum with low compressive strength and high drill ability, like soft shale, clay, salt rock, etc. |
Surface of cone back cone and tooth should be hard faced. |
130~460 |
350~80 |
| C0146（No.2 cone） | |||||
| C0147（No.3 cone） | |||||
|
KKZ762Ⅱ |
C0138（No.1 cone） |
150~530 |
350~80 |
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| C0139（No.2 cone） | |||||
| C0140（No.3 cone） | |||||
|
KKZ914Ⅱ |
C0130（No.1 cone） |
180~640 |
350~80 |
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| C0131（No.2 cone） | |||||
| C0132（No.3 cone） | |||||
Notes: please specify the stratum coding when you order, for depending on the coding, we can choose certain cone assembly to match the coding.