API 17 1/2" IADC 517 Tricone Roller Cone Drill Bit for HDD Well Drilling
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China [CN] What is the feature of rock bit?
1.The strength and wear resistance of inserts are improve by using carbide inserts with high strengthand high wear resistance.
2.Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing.
3.The service life of the bearing is further extended by adopting harder and mort wear resistant material for thrust bearing.
4. Preventing reflux structure has dual function, it can avoid air counterflow and dust entering into bearing when the air-compressor stop working accidentally, and separate air and water in order to avoid water entering into bearing when it works normally to prolong the life of bearing.
5.This series oil well rock bit use Sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased.
6.Thrust bearing surfaces are hardfaced and treated with friction reducing technology.
7.This series oil well rock bit use Journal bearing. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. The load capacity and seizure resistance of the bearing is greatly improved.
What is the advantage of rock bit?
1. It can recycle; it just consume one third of its lifespan in oil exploration process.
2. It can withstand high wob under the conventional drilling rate.
What is the parameters of rock bit?
|
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 |
|
IADC |
Parameters |
Apply to formation |
|
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 drill ability 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 drill ability 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 drill ability 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 |
What is the roller bit for oil field apply for?
1. Apply for soft to hard rock formation.
2. Especially suitable for oil drilling.
Company Information
Our company (Hebei Goldman Petroleum Machinery Co., Ltd.) is located in Hejian City, a historical city nearby Capital Beijing. Hejian city is nearby the well known Huabei Oilfield ,which propelled the establishment and development of Goldman.
We specialize ourselves in researching and production of rock drilling bits, mainly including tricone bits, PDC bits, drag bits, HDD hole opener, roller cutters and related tools like drill pipe,rotary slips, and so on. Our products are mainly used for oil well drilling, gas well drilling, geothermal well drilling, mining, geological survey, water well drilling, HDD pipelines projects and foundation projects.
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