AZM Oilfield’s Hinged Non-weld Bow Spring Centralizers are used to position the casing in the center of the wellbore in both vertical and deviated wells. These Bow Spring Centralizers reduce the effect of channeling by improving cement flow. This results in a highly uniform thickness between the casing and the wellbore. he centralizers are also able to minimize gas channeling by reducing the movement of the pipe before the cement sets in. Additionally, these bow centralizers provide a semi-rigid casing Stan off.
A non-welded design features the self-locking of lips for holding bows to end collars. Bows of special alloy steel are hot-formed and then tempered for optimum strength, resilience, and uniformity.
Performance Features
- A non-weld design allows for a less demanding application where rotation abilities are not essential.
- A non-weld design provides a reliable downhole performance in cased-hole or open-hole applications.
- A high restoring force combined with a low starting force is achieved with all bow heights.
Non-weld Hinged Bow Spring Centralizers
- AZM Oilfield’ s bow springs are manufactured from high-quality spring steel and heat- treated to achieve minimum starting and running forces . The heat-treated alloy provides flexibility while minimizing damage when moving downhole.
- Installation on the casing pipe is very convenient since it simply requires the placement of the two assembled halves on the pipe and the insertion of the pin in the end collar hinge.
- The centralizer when unassembled makes a compact package, greatly reducing shipping cost; its assembly on site is straight forward.
- AZM Oilfield offers a wide range of bow heights and shapes enabling the customer to make an optimum choice matching their requirements .
- These centralizers are designed to be installed and latched on over stop collars or casing collars
Options
- Hinged Non-weld Bow Spring Centralizers are available in the sizes 2 ⅞” to 30″
- Special sizes or combinations can be made available on request
Recommended For Use With
- Stop Collar with Set Screws
- Hinged Stop Collar
- Hinged Stop Collar with Spiral Nails