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The casing centralizer is an essential accessory for casing operations. Upon completion of well operations, the proper utilization of casing centralizers serves the following purposes:
1. Reducing resistance in the lower casing section: Casing centralizers help minimize any resistance encountered while lowering the casing, ensuring a smooth descent to the designated position.
2. Facilitating optimal casing placement: By reducing resistance, casing centralizers aid in achieving the desired casing position according to the design specifications. This helps maintain the integrity and efficiency of the wellbore.
| Technical Parameter | ||||||
| Spring Casing Centralizer | Size(In) | OD(mm) | IN(mm) | Height(mm) | Max Start-up Force(N) | Min Reset Force(N) |
| 20" | 680 | 512 | 575 | ≤16725 | ≥8363 | |
| 13-3/8" | 455 | 342 | 560 | ≤10853 | ≥5427 | |
| 9-5/8"*12-1/4" | 335 | 248 | 560 | ≤7117 | ≥7117 | |
| 7" | 235 | 181 | 560 | ≤4626 | ≥4626 | |
| 6-5/8"*8-3/4" | 238 | 171 | 560 | ≤4270 | ≥4270 | |
| 5-1/2”*8-1/2” | 235 | 142 | 560 | ≤2758 | ≥2758 | |
| Rigid Centralizer | 13-3/8" | 437 | 344 | 180 |
| 9-5/8"*12-1/4" | 305 | 248 | 120 | |
| 7" | 210 | 182 | 120 | |
| 6-5/8"*8-3/4" | 215 | 171 | 120 | |
| 5-1/2"*8-1/2" | 210 | 142 | 120 |
Bow-spring centralizer
1. The design of these centralizers prioritizes high restoring force and low starting force, making them suitable for centralizing casing pipes in vertical, horizontal, and deviated wells.
2. The bows of these centralizers are manufactured using premium quality special alloy steel. They undergo a rigorous hot forming process in a controlled heat treatment plant, ensuring their durability and performance.
3. The specifications and performance standards of the bow spring casing centralizers comply with API Spec 10D. The woven centralizer is connected using a pin during operation, while the unfolded centralizer can be conveniently stacked flat for storage and transportation purposes.
Rigid roller centralizer
The rigid casing centralizer finds application in deviated and horizontal wells. It is equipped with multiple blades on the roller, which effectively prevent the casing from coming into direct contact with the wellbore wall.
Rigid Roller centralizer used in deep water Horizon Well packing: wooden case
Puyang Zhongshi Group Company Ltd, established in 1996, is a restructured enterprise derived from the Central Plains oilfield branch company of SINOPEC. With a registered capital of 6083 million yuan and an annual output value of 200 million yuan, the company boasts a workforce of 580 employees, including over 160 technical and administrative staff.
Our primary focus is on oil machinery, with our leading products encompassing pumping units, subsurface sucker rod pumps, wellheads (Christmas Trees), pressure vessels, drilling solid control series products, and cementing accessories. We obtained ISO 9001 certification in 1998 and API certificates in 2002, demonstrating our commitment to quality and industry standards.
We have 9 factories, more than 500 employees, and many kinds of production equipments.
We have certificates of API 5CT,6A,10D,11AX,11E, ISO 14001 and 9001.
With 10 years exporting experience,we have exported to more than 30 countries such as America,Canada,Russia,Venezuela,Columbia,Thailand,Indonesia ,UAE,Saudi Arabia,Kazakhstan etc.
At our company, we offer a one-year guarantee on all purchased products to ensure they remain in good working condition. In the event of any quality issues during the guarantee period, our company will provide free maintenance services. Furthermore, we provide lifelong technical support and fittings to our customers.
Our commitment to customer satisfaction extends beyond time restrictions, as our after-sales service is not limited by a specific timeframe. We have a dedicated team of technical personnel who are readily available to address any concerns or issues you may encounter. Simply reach out to us via telephone, and we will promptly assist you, taking into account your feedback and resolving any problems in a timely manner.
Should you encounter any difficulties while using our products, please feel free to contact us at any time. We are here to assist you.
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Main Product:
Sucker Rod Pump,
Pump Unit,
Pump Jack,
Wellhead Installation,
Cementing Head ,
Casing Centralizer
