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Casing centralizer is a cementing tool which applied to centralize casing to improve the cementing quality.
Bow-spring casing centralizer is mainly used in vertical or slightly deviated wells. Bow-spring centralizer consists of couplings, bow spring strips and pins .Designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in Horizontal and Deviated well.
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.
Spec and performance index of bow spring casing centralizer meet API Spec 10D.
The casing centralizer is connected by pin when operation, the unfolded centralizer can be stacked flatly for convenient storage and transportation.
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Centralizer Spec. (in) |
20 |
18-5/8 |
16 |
14 |
13-3/8 |
12-3/4 |
10-3/4 |
9-5/8 |
7-5/8 |
7 |
6-5/8 |
5-1/2 |
5 |
4-1/2 |
|
Casing Size (in) |
20 |
18-5/8 |
16 |
14 |
13-3/8 |
12-3/4 |
10-3/4 |
9-5/8 |
7-5/8 |
7 |
6-5/8 |
5-1/2 |
5 |
4-1/2 |
|
Open Hole Size (in) |
24 26 |
22 24 |
20 22 |
18 |
17-1/2 |
17-1/2 |
12-1/4 |
12-1/4 |
9-7/8 |
8-1/2 |
8 |
1/2 |
6-1/2 |
6 |
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Max. O.D. (mm) |
650 714 |
590 680 |
550 613 |
484 |
470 |
466 |
370 |
375 |
273 |
252 |
245 |
256 |
190 |
181 |
Bow Spring Centalize:
The Non-Welded Bow Spring Centralizers are made under the sate af art Enineering Techniques and rugged quality system. They are developed to exceed API 10D specification to be used under most demanding condition. These Centralizers are designed for High Restoring Forse and Low Starting Force for centralizing the casing pipe in a Vertical, Horizontal and Deviated well.
Description of Single Piece Bow Spring Casing Centralizer
The Single Piece Bow Spring Casing Centralizer is newly designed integrated steel flexible Centralizer used to centralize casing during the cementing stage of oil wells. Fully integrated (SLIP-ON) centralizers are manufactured in any diameter and as per customer requirements.
The blades, top and bottoms rings are made of one piece to ensure the centralizer s integrity during rig operations.
The specifications comply with API Spec 10D for starting compression, running down hole and expansion force.
These centralizers offer high fatigue strength for axial forces and radial side loads on bows during tubular rotation.
More flexibility as comparison to other spring bow centralizer.
1. Starting and restoring force confirm to API Standard.
2. More flexibility as comparison to other spring bow centralizer
3. Greater centering efficiency
4. Higher Stand Off.
5. 360° wall coverage for increased load bearing area.
Available Size: 4-1/2" to 13-3/8".
The design of double-crested bows produces centralizers that have starting forces far below API 10D along with very low drag forces, allows the centralizer to compress in order to get through tight spots and severe doglegs that may be present down-hole.
Compared to conventional bow spring centralizers, double-crested bow provide better standoff for more effective mud removal, which enhances the primary cement job and zonal isolation.
Shipping way:
1.All products are protected with thread protector
2.Wooden case, or customized packing.
3.Delivery: By truck, train, air, sea,express
1. Are you a factory or a trader?
A: We have our own factory and an international trading company.
2. Do you support product customization?
A: Yes, we mainly customize processing (process customization, material customization, surface treatment customization, etc.). According to your samples or drawings to make samples!
3. What is the payment method?
A: We accept TT (Bank Transfer), Western Union, and L/C.
For a total amount under US$500, 100% in advance.
For total amounts above US$500, 30% in advance, the rest before shipment.
4. What is your MOQ?
A: MOQ depends on our client's needs; besides, we welcome a trial order before mass production.
5. What is the production cycle?
A: It varies a lot depending on product dimension, technical requirements, and quantity. Generally, it takes about 30 days. We always try to meet customers' requirements by adjusting our workshop schedule.
6. Is it possible to know how my product is doing without visiting your company?
A: We will offer a detailed product schedule and send weekly reports with digital pictures and videos that show the machining progress
7. How do you control and ensure product quality?
A: We will prevent beforehand, manage during the event, and guarantee after the event. Confirm with you every detail before quoting. After you order, we will reconfirm all the details. So we can reduce the losses of time and costs.
8. If you make poor-quality goods, will you refund our funds? A: We make products according to drawings or samples strictly until they reach your 100% satisfaction. And actually, we won't take a chance on doing poor-quality products. We are proud of keeping the spirit of good quality.
9. How can I receive a quotation?
A: Please send us your product drawings or picture information via email or message, and we will provide you with a product quotation within 2 working days!
10. How can I get samples?
A: 1) Standard products: We provide free samples under $5.
2) Custom products: We charge 1-3 times the unit price (based on product specifications)
Shipping methods are DHL, FedEx, TNT, UPS, EMS, or others. You need to pay for shipping. Samples will be sent as soon as payment is received!
11. How do I place an order?
A: Please try to provide the following information:
* Product information: specifications, quantity, expected price
* Delivery requirements
*Payment
* Shipping information: name, detailed shipping address, phone number, shipping requirements (courier, air or sea).
* If there is a cooperative freight forwarder, please provide the contact information of the freight forwarder.
* Please send us an official purchase order by email. Or we can provide proforma invoices for you.
12. How to send the product to me?
A: The transportation method is up to you. We can also recommend more economical transportation for you!
For small batches under 30kg, express delivery (DHL, FedEx, TNT, UPS, EMS, or others) is commonly used.
Orders of 30-500 kg can be airlifted to your designated airport.
For large quantities or large volumes, we often use sea freight.
13. Can you arrange the transportation of the goods for me?
A: Yes, we can send you by sea, air or courier.
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