Centek launches Hinged Centralizer for offshore wells

Centek Group, the leading centralizer manufacturer, is introducing the Centek S2 Hinged Centralizer for use offshore when top of hole centralization with oversized casing connectors is required.

In applications where quick casing connectors are used, slip-on bow spring centralizers cannot be fitted because the unions stand proud of the casing and a hinged centralizer is necessary. Each half of Centek’s new hinged centralizer is made from a single piece of hardened, high grade steel. The new design does not compromise on centralizer performance with a joint strength of up to 3.5 tonnes which is unparalleled in the industry. The Centek S2 Hinged Centralizer has the strongest hinge of any latch-on centralizer with specially designed spiral pins that reduce installation time and can be fitted to casing on the drilling platform or at the pipe yard.

Vertical installation is simple, by first fitting the hinged stop collar to the casing, followed by wrapping the two hinged halves around the casing and closing the other hinge. Pins require an insertion load of 220kg helping to preclude pin disengagement on run in hole, and as a further failsafe the pin cannot disengage because of the narrow gap between centralizer and stop collar.

The Centek S2 Hinged Centralizer provides both a high restoring force and high standoff ratio to aid good cementation, with no start or running forces as these centralizers are made precisely to gauge.

“When using quick connect couplings hinged centralizers are necessary but due to pipe weights and deviated well geometries, conventional hinged centralizers often fail or produce inadequate centralization and a poor cement job.” said Cliff Berry, Vice-President, Global Business Development at Centek Group. “Now with the hinged S2 centralizer we can offer our customers the flexibility of a hinged centralizer with the unrivalled strength of the Centek S2 opening up a new market for Centek.”

The units are designed to fit around the casing not the connector and are available in a range of casing sizes from 18 5/8 x 24 up to 28” x 32”. The first order for hinged centralizers has been shipped to Norway for well installation in Q2, 2015.

Further information from:

David Allen
Practical PR
Tel: +44(0)207 100 3499
Email: David.Allen@PracticalPR.com

Cliff Berry
Vice-President Global Business Development
Tel. +1 405 250 8177
cliff.berry@centekgroup.com  

About Centek Group

Founded in 2001, Centek Group rapidly became the leading innovator in centralizer design and manufacture. The Centek S2 centralizer is revolutionary in its design as it is a one piece unit. It is a bow spring centralizer with none of the disadvantages of traditional bow spring centralizers. The Centek S2 will provide the stand-off and flexibility required of a bow spring, but due to its unique construction it offers substantial robustness and strength. The Centek S2 is still the preferred choice for far reach deviated wells.

The Centek S2 was first run in the North Sea in 2002, and Centek Group can now claim unrivalled global success. The low profile, low torque Centek S2 offers vastly superior torque and drag reduction due to an extremely low coefficient of friction and it can be used successfully in either open or cased hole applications.

The UROS centralizer was introduced in 2010 for under-reamed wells where the high points of the bows are offset alternately which significantly reduces drag without reducing strength or centralizing capability.

In July 2012, Centek Group opened a US manufacturing subsidiary based in Oklahoma City, Oklahoma, USA. The 80,000 square feet plant is fully self-sufficient in all aspects of centralizer manufacture with its own heat treatment and laser cutting equipment.

In September 2014 Centek opened an enlarged facility in the UK which with the US plant gives Centek the largest centralizer manufacturing capability available.

In addition to UK and US facilities, Centek products are also available through Centek’s worldwide network. The company is poised for the release of a number of new products which currently have ‘patent applied status’. Centek Group have listened to their customers and recent industry upgrades and designed the new products needed for today’s oil industry requirements.

The company operates in three divisions

• Cementation Casing Equipment
• Completions
• Rental Tools

UK Office: Centek Group, Forde Rd, Brunel Industrial Estate, Newton Abbot, Devon, TQ12 4AE
CEO: Tony Cutmore
Tel. +44 1626 337636  Fax: +44 1626 353278   Web: www.centekgroup.com

USA Office: Centek Inc, 5500 S.W. 36th Street, Oklahoma City, OK 73179
President: John Carnuccio  john.carnuccio@centekgroup.com
Tel. +1 405 250 8177