wholesale drilling bits IADC217 17.5 inches (444.5mm)
Product Description
A drill bit is a device attached to the end of the drill string that breaks apart, cuts or crushes the rock formations when drilling a wellbore, such as those drilled to extract water, gas, or oil.
The drill bit is hollow and has jets to allow for the expulsion of the drilling fluid, or mud, at high velocity and high pressure to help clean the bit and, for softer formations, help to break apart the rock.
Tricone drill bits: A tricone bit comprises three conical rollers with teeth made of a hard material, such as tungsten carbide. The teeth break rock by crushing as the rollers move around the bottom of the borehole.
PDC drill bits: A PDC bit has no moving parts and works by scraping the rock surface with disk-shaped teeth made of a slug of synthetic diamond attached to a tungsten carbide cylinder
STEEL TOOTH TRICONE BIT
Delivery Time:Based on order quantity, normally it takes 30 days for production.Only 2 or 3 days if we
have stock on your request size.
Quality Control:We have our professional QC and all the products will be strict inspection and testing for every order before shipping out.We have API and ISO cetificate.
After Services:Technical Support will be available in any time. We could provide the professional suggestion for you.
Product Specification
|
Basical Specification |
|
|
Size of Rock Bit |
17 1/2" |
|
444.5 mm |
|
|
Bit Type |
Steel Teeth Tricone Bit/ Milled teeth Tricone Bit |
|
Thread Connection |
7 5/8 API REG PIN |
|
IADC Code |
IADC 217 |
|
Bearing Type |
Journal Sealed Roller Bearing |
|
Bearing Seal |
Rubber Seal |
|
Heel Protection |
Available |
|
Shirttail Protection |
Available |
|
Circulation Type |
Mud Circulation |
|
Drilling Condition |
Rotary drilling,high temp drilling,deep drilling,motor drilling |
|
Nozzles |
3 |
|
Operating Parameters |
|
|
WOB (Weight On Bit) |
34,958-94,885 lbs |
|
156-422KN |
|
|
RPM(r/min) |
60~150 |
|
Formation |
Soft to medium formations with high compressive strength, such as mudstone,medium-soft shale,hard gypsum,medium-soft limestone,medium soft sandstone,soft formations with harder interbed ,etc. |
If you are working with a rock formation that is a little difficult to drill,you will pay more special attention to the type of teeth ,additional seals,and gauges that you may need in order to effectively drill into the formation.
We can give most advanced drilling solutions when you can supply specific conditions and operation parameter,such as hardness of rocks,type of drilling rig,rotary speed,weight on bit and the torque. It also help us to find more suitable drill bits after you can tell us the type of well drilling.
