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Packaging detail: Wooden box packaging
Delivery detail:1-10days
Specialist
Deep hole drilling machine
1,Model: SVseries
2,Connection thread : IADC
3,We are manufacture. so our price has the absolute price advantage, but our quality is guaranteed.
4, The advanced metal seal
5, The best choice of the suitable for directional well, horizontal well drilling.
From 1909 the first tricone bit after the advent of cone bit is widely used throughout the world, tricone bit current to the most commonly used in the rotary drilling bit, this type of drill bit with different tooth design and bearing the result type, thus can adapt to various types of strata.In drilling operation, according to the nature of the drilling strata correctly choosing appropriate structure of the roller bit can obtain satisfactory drilling speed and drilling footage.
Drill bit size ,type recommended paramete
Size |
Type |
|
In |
Mm |
|
8 1/2 |
215.9 |
SVT437G SVT4 Drill bit size ,type recommended parameter 47G SVT517G SVT527G SVT537G SVT547G SVT617G |
|
9 1/2
|
241.3 |
SVT437G SVT447G SVT517G SVT527G SVT537G SVT547G SVT617G |
12 1/2 |
311.1 |
SVT437G SVT447G SVT517G SVT527G SVT537G SVT547G SVT617G |
Rock and many different kinds of earning, broad scope, from soft to hard strata have a corresponding bit types to choose from, in practice the drilling operation, according to the nature of the drilled formation, chooses the appropriate type of bit, in order to obtain high mechanical drilling rate and drilling footage.
|
IADC |
Parameters |
Apply to formation |
|
Bit pressure(KN/mm) |
Rotate speed (r/mm) |
||
|
437 447
|
0.35~0.9 |
240~70 |
Low compressive strength and high drillability of extremely soft stratum, such as clay, shale, gypsum and halite, soft shale, soft limestone |
517 527 |
0.35~1.0 |
220~60 |
Low compressive strength and high drillability of soft stratum, such as clay, shale, gypsum and halite, soft shale, soft limestone |
537 547 |
0.45~1.0 |
220~50 |
Low compressive strength and high drillability of extremely soft stratum, such as clay, shale, gypsum and halite, soft shale, soft limestone |
617 |
0.45~1.0 |
200~50 |
Hard strata with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite and anhydrite marble |
Since we have our own factory, the production process are in production, our very own our technical staff in monitoring all the way, for high quality.Choose us you will not be disappointed.
Bit applicable is the need to pay attention to the following:
1, ensure slow the drill down
2, prevent drill string free fall
3, borehole falling drlling
4, use the shock absorber
5, at the manufacturers recommended weight on bit, rotary speed within the scope of work
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