| Customization: | Available |
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| Customized: | Customized |
| Standard: | API |
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| Description | PDC Bits |
| Size | from 3'' to 36", or as Customized. |
| Cutters type | High Grade PDC Cutter,Triangular Tooth, Ridge Tooth, or as Customized. |
| Formation | Suitable for medium formation with high compressive strength, such as medium soft shale, anhydrite, medium soft limestone, medium soft sandstone and soft formation with hard interlayer. |
| Application | Oil & gas well drilling, geothermal drilling, water well drilling and mining drilling. |
| Suggested parameter table for drilling regulation of diamond compact(PDC) bits: | ||||||||
| Item | Diameter Range (Inch) |
Diameter (mm) |
Connection | Drilling Schedule Parameters | ||||
| Diameter(Inch) | Torque(kn/m) | WOB(KN) | Speed(rpm) | Flow Rate(lps) | ||||
| 1 | 3 1/2 ~ 4 1/2 | 88.9 ~ 114.3 | 2 3/8REG | 3 | 2.4 - 2.7 | 10-50 | 50-200 | 10-20 |
| 3 1/8 | 3.3 - 3.7 | |||||||
| 3 1/4 | 4.2 - 4.6 | |||||||
| 2 | 4 17/32 ~ 5 | 115.09 ~ 127.00 | 2 7/8REG | 3 1/2 | 4.2 - 4.6 | 10-60 | 50-200 | 10-25 |
| ≥3 3/4 | 6.2 - 6.9 | |||||||
| 3 | 5 1/32 ~ 7 3/8 | 127.79 ~ 187.33 | 3 1/2REG | 4 1/8 | 7.1 - 7.7 | 30-80 | 50-200 | 10-30 |
| 4 1/4 | 8.5 - 9.5 | |||||||
| 4 | 7 13/32 ~ 9 3/8 | 188.12 ~ 238.13 | 4 1/2REG | 5 1/2 | 17.0 - 18.6 | 30-120 | 50-250 | 25-40 |
| 5 3/4 | 22.4 - 24.4 | |||||||
| ≥6 | 23.9 - 26.4 | |||||||
| 5 | 9 13/32 ~ 14 1/2 | 238.92 ~ 368.30 | 6 5/8REG | ≥7 1/2 | 50.3 - 57.5 | 30-140 | 50-250 | 40-60 |
| 6 | 14 17/32 ~ 17 1/2 | 369.07~444.50 | 7 5/8REG | 8 1/2 | 65.6 -71.9 | 30-160 | 50-250 | 48-80 |
| 8 3/4 | 78.2 - 86.1 | |||||||
| ≥9 | 81.4 - 90.9 | |||||||
Ruishi's Growth Journey
One day in 1990
RuiShi Bits were born in the Huabei oilfield.
In 1998
Our subsidiary QianLong Tool(QL) was established.
Boasting formidable technical capabilities, QL covers extensive business scopes. Working closely with the parent company(Ruishi), QL has achieved outstanding performance.
From 2009
RuiShi became a vertified First-Class supplier for CNPC and CNOOC day by day.
In 2018
RuiShi increased its registered capital to 200 million RMB. We focus more intently on R&D, design, manufacturing of drill bits. RuiShi quality improves daily, reputation rising bit by bit.
In 2021, our new subsidiary Screw Equipment joined the group.
Ruishi providing comprehensive solutions for oil drilling. With one-stop services, Screw Equipment enhances RuiShi's capacity as a holistic brand.
Today, RuiShi Bits are bestsellers in domestic market and abroad, with a full range of models and sizes from 2'' to 26''.
In the future, RuiShi will build on its heritage and keep serving the petroleum industry in both domestic and international markets. Through continuous innovation, we will seek new development and write a splendid chapter!
Wooden Box & Iron Box
At Ruishi, we promote comprehensive quality management with a focus on customer needs.
To ensure consistent quality and bit performance, we adhere strictly to:
· API SPEC7-1 and ISO9001 quality standards during production;
· ISO 14001 environmental management systems;
· OHSAS 18001 occupational health and safety protocols.
After-sale Warranty
(1) Free replacement for quality-related problems.
(2) Timely after-sale support is always available.
Q1: Are you a manufacturer or a trade company?
A1: We are a manufacturer, and we can help you find different kinds of products in the Chinese market to match your needs.
Q2. Can I have a sample order?
A2. Yes, we welcome sample order to test. Mixed samples are acceptable.
Q3. What about the lead time?
A3. Samples within 3 days, big order within 30 days.
Q4. Do you have any MOQ limit for LED light?
A4. One piece for sample testing is available.
Q5. How do you ship the goods and how long does it take to arrive?
A5. We usually send by DHL, UPS, FedEx or TNT. It takes around 3-5 days. Sea shipping also optional.
Q6. What about Payment?
A6. TT, Paypal, L/C, Western Union; 30% deposit before mass production, balance against copy of B/L.
Q7. How to deal with the faulty?
A7. During the warranty period, we will repair or replace defected products.
Q8. Can I visit your factory online?
A8. Yes, we can show our workshop, warehouse, offices online by WeChat, Whatsapp or Skype.
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