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Challenge

Hole Opening

Bow Spring

Bow Spring centralizers are specially designed for vertical wells where low starting forces as well as high restoring forces are required. The Bows of these centralizers are heat treated in a special furnace which gives it the particular ‘bow spring’ action.

The specific hardness of the bows is calculated to ensure its performance exceeds the API 10D standards. Balancing the Starting Forces with the Restoring Forces taking care of the Running Forces makes it the ideal product for today’s severe downhole drilling conditions. The flexing of the bows is a critical factor for these centralizers and the bows undergo a special state of flexing before assembly to ensure that they do not snap off under extreme stress conditions.

Variants:

Turbo Fin

Hinged Non Weld Turbo Fin Bow Spring Centralizer

Turbo Fin Bow Spring Centralizers can be used in wells which help generate turbulence in cementing slurry during pumping operations. The turbo fins are made of high tensile steel. This construction comes with Hinges and a Non Welded Bow.

Hinged Welded Turbo Fin Bow Spring Centralizer

In this construction the double bows of the centralizers are welded onto the end collars making it a Hinged Turbo Fin along with a Welded Construction.

Slip on Welded Turbo Fin Bow Spring Centralizer

In this type of Turbo Fin the end collars do not have any hinges hence these centralizers can ‘slip on’ to the casing.

Integral Stop Collars

All Turbo Fin Bow Spring Centralizers are also available with integral stop collars where set screws are available on the end collars. In this case stop collars are not required, however on the Welded and Slip On variations this would not float on the casing.

Double

Hinged Non Weld Double Bow Spring Centralizer

Hinged Non Weld Double Bow Spring Centralizers can be used in deviated wells which require low running forces. These are designed to pass through tight spots and doglegs. The double bow design makes these centralizers act as rigid centralizers under high side loads. The construction is with hinges and a non welded bow.

Hinged Welded Double Bow Spring Centralizer

In this construction the double bows of the centralizers are welded onto the end collars thus making it a Hinged Centralizer along with a Welded Construction.

Slip on Welded Double Bow Spring Centralizer

In this type of centralizers the end collars do not have any hinges hence these centralizers can be ‘slip on’ to the casing.

Integral Stop Collars

All Double Bow Spring Centralizers are also available with integral stop collars where set screws are available on the end collars. In this case stop collars are not required, however on the Welded and Slip On variations this would not float on the casing.

Hinged

Hinged Non Weld Bow Spring Centralizer

In this type of centralizer the end collars have hinges which split it into two halves. The bows are locked to the end collars via a special locking mechanism. These centralizers can be shipped in half reducing the freight cost.

Hinged Welded Bow Spring Centralizer

In this construction the bows of the centralizers are welded onto the end collars making it a Hinged Centralizer along with a Welded Construction.

Slip on Welded Bow Spring Centralizer

In this type of centralizer the end collars do not have any hinges hence these centralizers can ‘slip on’ to the casing.

Integral Stop Collars

All Bow Spring Centralizers are also available with integral stop collars where set screws are available on the end collars. In this case stop collars are not required, however this would not float on the casing.