| Customization: | Available |
|---|---|
| Customized: | Customized, Customized |
| Standard: | API, AISI, API, ISO9001 |
|
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The IADC classification system is a four-character design- and application-related code.
The first three characters are always numeric; the last character is always alphabetic.
The first digit refers to bit series, the second to bit type, the third to bearings and gauge arrangement, and the fourth (alphabetic) character to bit features.
Series, the first character in the IADC system, defines general formation characteristics and divides milled-tooth and insert-type bits. Eight series or categories are used to describe roller-cone rock bits.
Series 1 through 3 apply to milled-tooth bits;
series 4 through 8 apply to insert-type bits. The higher the series number is, the harder or more abrasive the rock type is.
Series 1 represents the softest (easiest drilling applications) for milled-tooth bits;
series 3 represents the hardest and most abrasive applications for milled-tooth bits.
Series 4 represents the softest (easiest drilling applications) for insert-type bits,
series 8 represents very hard and abrasive applications for insert-type bits.
Unfortunately, rock hardness is not clearly defined by the IADC system. The meanings of "hard" sandstone or "medium-soft" shale, for example, are subjective and open to a degree of interpretation.
Thus, information should be used only in a descriptive sense; actual rock hardness will vary considerably, depending on such factors as depth, overbalance pressure, porosity, and others that are difficult to quantify.
The second character in the IADC categorization system represents bit type, insert or milled tooth, and describes a degree of formation hardness.
Type ranges from 1 through 4.
The third IADC character defines both bearing design and gauge protection.
IADC defined seven categories of bearing design and gauge protection:
| Size |
| 171.5 mm |
| Thread |
| 3 1/2" API Reg |
| Material |
| Solid Carbide |
| Weight |
| 23kg |
| Application |
| Water Well Drilling,Mining |
| Advantage |
| Wear Resistant,High Performance |
Suzhou Energy Tool Co., Ltd.
a high-tech company formed by a group of drill bit experts with over 20 years of work experience in the world's top oil service companies.
ENG has cooperated with many research institutes at home and has formed an advanced technological system based on market-oriented and continuously promoting technological innovation and product improvement.
ENG 'S bits production lines are equipped with 5-axis machining centers, Modern lathes, and FMS (Flexible manufacturing system ) and can produce matrix body and steel body PDC bits from 3-7/8" to 26" in diameter.
ENG has been keeping on pursuing producing high-quality products with relevant inspections and tests.
The company's QMS has been certified by API, ISO 9001 for many years.
ENG has 23 patents granted in China.
| Q: You are a trading company or manufacturer ? |
| A: Manufacturer, We are a 100% real factory with over 20 years' experience in water/oil/gas wells Drill Bits. |
| Q: How about your products ? |
| A : Both of tricone bits and PDC bits strictly conform to API 7 requirements and ISO9001. we will do kinds inspections before delivery, also cover for after-sales service. |
| Q: Package Methods ? |
| A: Nornally wooden case, also can be steel box; can be customized if need. |
| Q: Payment Terms ? |
| A: we accept T/T, L/C, Paypal, Western Union, etc. |
| Q: Can I visit your factory ? |
| A: Yes, we welcome you to our factory all the time, will send invitation letters if need; also can show our workshop and warehouse online. |
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