API Standard Single Bow Spring Centralizer for Casings:
High-quality centralizers are crafted from a special alloy steel and undergo a precise hot forming process in a controlled heat treatment plant. This meticulous manufacturing method ensures that the centralizers possess consistent and uniform hardness throughout their structure.
The specifications and performance index of bow spring casing centralizers adhere to the stringent standards set by API Spec 10D. This ensures that the centralizers meet the required quality and performance benchmarks established by the industry.
During operation, woven centralizers are connected using pins for secure attachment. When not in use, these centralizers can be effortlessly unfolded and stacked in a flat configuration. This clever design enables convenient storage and transportation, maximizing efficiency and ease-of-use.
API Standard Single Bow Spring Centralizer for Casings character:
1) The bow springs in these centralizers are manufactured using heat-treated and hardened tempered spring steel. This process ensures that the springs possess the necessary characteristics for proper and consistent spring action.
2) The end collar hinges are folded inward, reducing collar stretch that can occur when centralizers encounter tapers commonly found in certain types of pipe connections. This design feature minimizes potential issues and maintains the effectiveness of the centralizers.
3) To enhance durability and preserve its round shape during transport, the end collar is equipped with a stamped reinforcing rib. This rib provides added strength and stability, ensuring the centralizer remains intact during handling and transportation.
4) Multiple spring bow heights are available to accommodate various casing-to-hole configurations. This flexibility allows for optimal positioning and alignment to achieve efficient cementing operations.
5) Centralizers with built-in stop devices and uncommon sizes can be provided upon request. This option ensures that specific requirements and unique needs can be met, providing customized solutions for different applications.
Casing sentralizer specifications:
| Model (in) | Hooping In-Dia. (mm) | Hooping thickness (mm) | Total length (mm) | Max.Out-Di (mm) | Amount of spring (mm) |
| 5-1/2" x 8-1/2" | 142-148 | 3-5 | 650±50 | 225±5 | 5 |
| 7" x 9-5/8" | 181-186 | 3-5 | 650±50 | 255±5 | 6 |
| 7" x 8-1/2" | 181-186 | 3-5 | 650±50 | 235±5 | 6 |
| 8-5/8 x 12-1/4" | 223-228 | 3-5 | 650±50 | 330±5 | 8 |
| 9-5/8 x 12-1/4" | 250-255 | 3-5 | 650±50 | 330±5 | 8 |
| 10-3/4 x 12-1/4" | 274-276 | 3-5 | 650±50 | 330±5 | 9 |
| 13-3/8"x17-1/2" | 342-347 | 3-5 | 650±50 | 450±5 | 11 |
| 18-5/8"x24" | 475-477 | 3-5 | 600±50 | 610±5 | 12 |
| 20"x26" | 509-511 | 3-5 | 600±50 | 660±5 | 12 |
Company Information
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
