Stammford Cementing

Masjid Moth, Delhi

Sfsw-03-welded-spiral-vane-solid-rigid-centralizer-fixed stammford's welded spiral vane solid rigid centralizer fixed is designed same as welded spiral vane solid rigid centralizer except rows of set screws on the outer periphery of centralizer to restrict rotation. It can be easily converted from fixed to non fixed design by detaching set screws and positioning with stop collars.

Stammfords Non Welded Bow Spring Centralizers are made under state of art Engineering Techniques and rugged quality system. They are developed to exceed API 10D specification for used under most demanding condition. These Centralizers are designed for High Restoring Force and Low Starting & Running Force for centralizing the casing pipe in Vertical, Horizontal and Deviated well.

Premium quality Bows are made of special Double Rolled Alloy Steel and hot formed in totally controlled Heat Treatment Plant to achieve the uniform hardness all over and good spring action. End Collars are designed with self-locking action, which are easy to assemble, time saver and having strong grip. The five standard sizes Bows can configure to any hole dia. These Bows with extended profile prevent them from hitting against casing collars. These Centralizers undergo a special Iron Phosphate coating process to prevent from Rust and then coated with special Polyester Powder.

These can be shipped in half assembled condition for economical in shipping and storage costs. These are available in 4 1/2" to 20 " sizes. Any special sizes or combination can be made available on request.

Stammfords Welded Hinged Spring Bow Centralizers are high quality welded products, which meet or exceed API 10D specification. Welded Centralizer has more Restoring Force as compare to Non Welded Centralizer. The Centralizers have Bow Spring strongly welded to the End Collar under required temperature and condition with extra low Hydrogen coated Electrodes.

Integral hinge folded on the inside stay intact even under extreme stress. The End Collars are designed with a Reinforcing Rib stamped into the End Collar to give maximum structural toughness. These generally shipped in half assembled condition for economy in shipping and storage cost.

These Centralizers are available with combination of Bows configure from choice of seven standard Bow height for optimum Starting and Restoring Force. These centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder. These are available in all sizes ranging from 3 1/2" to 20 ". Any special sizes or combination can available on request.

Stammford's Welded Slip on Spring Bow Centralizer, Its Operational, General design, Features and Characteristics are the same as Hinged Welded Centralizers. Collars are specially designed with roll formed peripheral ridges which provide extra rigidity. Slip On Centralizers are provided for direct installation on pipe by slipping on and can be provided with Set Screws for elimination of Stop collar.

They are shipped in assembled condition only. These Centralizers are available with combination of Bows configure from choice of seven standard Bow height for optimum Starting and Restoring Force.

These centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder. These are available in all sizes ranging from 3 1/2" to 20". Any special sizes or combination can available on request.

Stammford's Slip On Welded Bow Spring Turbolizer Operational, General design, Features and Characteristics are the same as Hinged Welded Turbolizer. Collars are specially designed with roll formed peripheral ridges which provide extra rigidity. Slips On Turbolizers are provided for direct installation on pipe by slipping on and can be provided with Setscrew for elimination of Stop collar. They are shipped in assembled condition only.

These Centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder. These are available in 3 Y2" to 20" sizes. Any special sizes or combination can available on request.

Stammford's Non Welded Semi Rigid Centralizers has the ability to withstand high lateral load encountered. This device ensures high efficiency in casing jobs on Deviated and Horizontal wells. Combining the features of Standard Spring Bow Centralizers and Rigid Centralizers. It has high Restoring force and high Stand Off with low Running Force which is ideally suitable for Deviated and Horizontal wells where load on springs are maximum.

Bows spring is made of premium quality Alloy Steel under rigid Heat treatment plant. The spring characteristics of Double Crested profile permits compression to facilitate movement through Tight spots and Doglegs. Compared to other Spring Bow Centralizers this device attains high Stand Off because of high Restoring force. It increases contact area for less Bow penetration, which helps in complete Mud removal while Cementing. Bows can be configured for any hole dia from choice of Five standard Double Crested Bows. These Centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder.

These can be shipped in half assembled condition for economy in shipping and storage costs. They are available in 4 1/2" to 20" sizes. Any special sizes or combination can available on request.

Stammford's Hinged Welded Semi Rigid Centralizer ensures high efficiency in casing. Welded Centralizer has more Restoring Force as compare to Non Weld Centralizer. The Centralizers have double crested Bow Spring strongly welded to the End Collar under required temperature and condition with extra low Hydrogen coated Electrodes, which assures ultimate strength and uniformity in every weld.

Integral hinge folded on the inside stay intact even under extreme stress. The End Collars are designed with a reinforcing Rib stamped into the End Collar to give maximum structural toughness. These generally shipped in half assembled condition for economy in shipping and storage cost.

These Centralizers are available with combination of Bows configure from choice of four standard Bow height for optimum starting and Restoring Force. These centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder. These are available in all sizes ranging from 3 1/2" to 20". Any special sizes or combination can available on request.

Stammfords Slip On Welded Semi-Rigid Centralizers share many of the same design and operational features as Hinged Welded Centralizers. They can be directly installed onto pipe and are provided with set screw style Stop Collars to increase the holding force.

The Collars are innovatively designed with roll formed peripheral ridges that provide extra rigidity. The Centralizers are available in a variety of Bows configured from a choice of four standard Bow heights. All Centralizers undergo a special iron phosphate coating process to prevent corrosion and are then coated with a special polyester powder.

This product is shipped in assembled condition only. It is available in all sizes ranging from 3 1/2 to 20. Any special sizes or combination can be made available upon request.

Stammfords Slip On Welded Positive Spirolizer is designed specially for highly deviated or horizontal wells. Ideal for use with Liner Hangers. The steel construction ensures extra strength and superior toughness. The boat shaped Spiral fins minimize Drag Forces while running pipe. The fins glide smoothly in the low side of horizontal bore holes.

Wide symmetrical fins are smoothly beveled on the both ends to have lower coefficient of friction and to ease casing movement in either direction. Fins designs also resist high side load. Spirally oriented Fins are welded to the one piece rolled formed End Collar under required temperature and condition with extra low Hydrogen coated Electrodes, which assures ultimate strength and uniformity in every weld. Steel construction provides superior toughness over other materials.

Vanes can be selected to meet any hole dia from a choice of seven boat profile depths. Slip On Spirolizer are provided for direct installation on the pipe by slipping on and can be provided with compatible Stop Collars beveled from one side positioned by set screw.

They are shipped in assembled condition only. These Centralizers undergo a special Iron Phosphate coating process to prevent from Rust then coated with special Polyester Powder. These are available in all sizes ranging from 3 1/2" to 20". Any special sizes or combination can available on request.