| Warranty: | 3 Years |
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| Manufacturing Process: | CNC Milling |
| Surface Treatment: | Spray-Paint |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier Casing centralizer
Casing centralizer is one of the necessary conventional casing accessories, upon well operationscompletion, the rational use of casing centralizer can play the role of:Reducing lower casing resistance phenomenon, making the casing smoothly down to the design position; Making casing centralizer centered within the well; Reducing the sticking phenomenon to make the annular space hydrostatic pressure balanced; Reduce channeling, improve the mud replacement efficiency, thus improve the cementing quality.
Bow-spring centralizer
1.These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical,
Horizontal and Deviated well
2.Premium quality Bows are made of special alloy steel and hot formed in totally controlled heat treatment plant to achieve the
uniform hardness all over
3.Spec and performance index of bow spring casing centralizer meet API Spec 10D. The woven centralizer is connected by pin when in
use, the unfolded centralizer can be stacked flatly for convenient storage and transportation.
| Model(in) | Hooping In-Dia. (mm) | Hooping thickness (mm) | Hoopin g height( mm) | Total Lengt h(mm) | Max. Out-Dia.(mm) | Spring Pieces |
| 5-1/2*8- 1/2 | 142-148 | 3-5 | 90-120 | 650±5 0 | 225±5 | 5 |
| 7*9-5/8 | 181-186 | 3-5 | 90-120 | 650±5 D | 255±5 | 6 |
| 7*8-1/2 | 181-186 | 3-5 | 90-120 | 650±5 D | 235±5 | 6 |
| 8-5/8*12-1/4 | 223-228 | 3-5 | 90-120 | 650±5 D | 330±5 | 8 |
| 9-5/8*12-1/4 | 250-255 | 3-5 | 90-120 | 650±5 0 | 330±5 | 8 |
| 10- 3/4*12-1/4 | 274-276 | 3-5 | 90-120 | 650±5 D | 330±5 | 9 |
| 13- 3/8*17 1/2 | 342-347 | 3-5 | 90-120 | 650±5 0 | 450±5 | 11 |
| 18-5/8*24 | 476±1 | 3-5 | 90-120 | 600±5 0 | 610±5 | 12 |
| 20*26 | 510±1 | 3-5 | 90-120 | 600±5 0 | 660±5 | 12 |
Hebei Ruishi Bits Manufacturing Co., Ltd. was established in 1990. It is engaged in diamond drill bit and drilling tool research and development, design and manufacture, sales and service of specialized companies. The company is located in Renqiu of Jizhong Plain, which is rich in oil resources. Renqiu is also the location of Huabei Oilfield.
The company has a number of experts experienced in diamond bit design of drilling technology, and is equipped with 5-axis machining center, NC lathes, NC sintering furnace, Ring sewing machine and other advanced production equipment. We are using domestic and foreign advanced professional design software, and doing continuous technological innovation and sustainable development. Ruishi owns full production lines of PDC bit and core bit, which is covering all sizes of the 2"--26" bit.
Ruishi has been promoting the comprehensive quality management and focus on the customer's demand. In order to ensure the stability of quality and the excellent performance of the bit, we strictly comply with the ISO9001 quality management system and ISO14001 environmental management system and OHSAS18001 Occupational health and safety management system in the enterprise operation, and strictly implement API Spec7-1 quality management standards in the process of production.
As the first grade supplier for Sinopec, CNPC and CNOOC, Ruishi's products are widely used in the Tarim, Tuha, Changqing, Dagang, Sichuan, Zhongyuan,Jidong, Huabei and other major oil fields. Ruishi has also established long-term strategic partnership with these oil fields. We have been highly recognized by the stability of excellent product quality and timely and thoughtful service. The company's products have been widely exported to North America, the Middle East, Russia and other countries and regions.
1.Q:What kind of packing do you have?
A:Plywood box or as your required.
2.Q:What is your price advantage?
A:We are 100% factory directly sales,API production process guarantee,Provide OEM services for you.
3.Q: Wonder if you accept small orders?
A: Yes, of course.
4.Q:Can you do OEM for me?
A:We accept all OEM orders,just contact us and give me your design.
5.Q:When can I get the quotation ?
A:We quote you ASAP after recieving your inquiry.
6.Q:Are you a manufacturer or trading company?
A: We are professional manufacturer.
7.Q: What kind of shippment method you provide?
A: By sea, air press or by train and other transports.
Suppliers with verified business licenses
Audited Supplier 
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