api standard 8-1/2\
Products Specification
There are rich and diverse roller bits to meet different requirements of formations and rotary speeds. The sizes of the gage diameter and the types of bit are strictly designed in accordance with the standards API Spec.7.
There are not only rubber sealed bearing bits but also metal face sealed bearing bits, and all bits are lubricated by new type of wear resistant grease that can sustain high temperature up to 250°C.
The surfaces of main or key parts are hardfaced and treated with friction reducing technology. They can enhance gage protection and prolong the life of bit.
Center nozzle is equipped for bits of larger sizes.
Technical specifications and parameters for Roller Bit (Tricone Bit) |
|||
Size |
IADC Code |
API Regular Pin (in) |
|
in |
mm |
||
3 7/8 |
98.43 |
126,617 |
|
4 1/4 |
107.9 |
131,321 |
2 3/8 |
4 5/8 |
117.5 |
121,241,527 |
2 7/8 |
4 3/4 |
120.6 |
241 |
|
5 5/8 |
142.9 |
121,241,321,537 |
3 1/2 |
5 7/8 |
149.2 |
241,321,517,537,547,617,637 |
|
6 |
152.4 |
211,216,246,437,517,527,537,547,617,637 |
|
6 1/8 |
155.6 |
117,211,437,517 |
|
6 1/4 |
158.7 |
121,241,321,517,527,537,547,637 |
|
6 1/2 |
165.1 |
517 |
|
6 3/4 |
171.4 |
121,241,321 |
|
7 1/2 |
190.5 |
121,124,134,217,244,517,527,547,617 |
4 1/2 |
7 7/8 |
200 |
121,124,131,134,241,321,517,527,547,617 |
|
8 3/8 |
212.7 |
215,217,517,527,537,547,617,637 |
|
8 1/2 |
215.9 |
114,116,117,121,124,126,127,131,134,137,211,216,217 241,247,321,437,447,517,527,537,547,617,637,837 |
|
8 3/4 |
222.2 |
127,417,437,447,517,537,617 |
|
9 1/2 |
241.3 |
117,124,125,127,437,517,527,537,617,637 |
6 5/8 |
9 5/8 |
244.5 |
114,121,124,131,134,437,517,527 |
|
9 7/8 |
250.8 |
115,121,211,241,321,512,542,612,732 |
|
10 |
254 |
126 |
|
10 5/8 |
269.9 |
127,217,417,517,527 |
|
11 5/8 |
295.3 |
117,127,137,217,417,517,537,547 |
|
12 |
304.8 |
124,126,216,517,537,547,617 |
|
12 1/8 |
308 |
547 |
|
12 1/4 |
311.1 |
114,115,116,117,121,124,126,131,134,137,211,214,244,437,517,527,537,547,617,637 |
|
13 5/8 |
346.1 |
114,115,121,124,437,515,517 |
|
13 3/4 |
349.2 |
114,115,437,517 |
|
14 3/4 |
374.6 |
136,127,517,527 |
7 5/8 |
15 |
381 |
121,124,241,244 |
|
15 1/2 |
393.7 |
125,215,217,517,537 |
|
16 |
406.4 |
115,215,515,535,545 |
|
17 1/2 |
444.5 |
435,515,437,517,527,537,547 |
|
18 |
457.2 |
125~547, |
|
18 1/2 |
469.9 |
127~ 547 |
|
19 1/4 |
489 |
115,225 |
|
20 |
508 |
125,215,437,515,525 |
|
22 |
558.8 |
125,215,437,515,525 |
|
24 |
609.6 |
124 |
|
26 |
660.4 |
114,124,134,525 |
|
36 |
914.4 |
124 |
Package:
1.Polywood case
2.Requested by customers
When inquiry, please specify below:
1.Bit size
2.IADC code
3.Connection
4.Port of destination if you need a CNF or CIF price
5.Ideal delivery date if you need the bits urgently
Our Services:
1.Quality products at favorable price in a right delivery
2.Customized design
3.Warranty
Comapny Profile:
SENWELL's main products cover 220 types and more than 1000 specifications presently. Our business covers non-magnetic products, drilling stem tools, fishing tools, jarring tools, coring tools, cementing tools, milling tools, well head tools, accessory tools, downhole tools, oil mining equipment, drill equipment, well control systems and pipes.
Today, with strong technology and profuse experience, SENWELL not only provides a comprehensive range of oilfield tools, but also provides tools for machinery industry and has decades of production experience. Main products are sand casting, investment casting, forging, centrifugal casting and machining equipment.
We have a great deal of outstanding and seasoned employees. Relying on advanced equipment and techniques, with the scientific management theory and spirit of "seriously dealing with matters relating to works", we have established long-term cooperative relationships with more than a hundred famous and large manufacturers in China. Our company creates a steady-going and reliable environment for our product research, development and sale.
We are based on the tenet of "providing consistent high quality products and the best services to meet the strict needs of our customers; to create value for our customers and provide our customers with a return on their investment" and the business philosophy of "people-oriented, customer first and reliability first". Our products have been successfully exported to Europe, America, the Middle East, South Africa and Southeast Asia. In the international market, we have acquired an excellent reputation among the clients.
We welcome new and old customers from all over the world to contact us for future business relationships and achieving mutual success! To benefit from our strong OEM/ODM capabilities and considerate services, contact us today. We believe you will be better with our support
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