Centek Group

02/11/2026

When casing lies against the borehole wall, cement can preferentially flow through the wider side of the annulus. Drilling fluid left on the narrow side can create channels that compromise zonal isolation and allow gas or other fluids to migrate behind the casing.

Effective centralization helps provide the standoff needed for displacement and cement placement.

That means selecting centralizers—and their spacing—for the actual well geometry, side loads and running conditions.

Our latest editorial explains why these decisions matter, with field evidence from challenging offshore applications.

Read more and discuss your centralization requirements with Centek: https://zurl.co/CTWYq

29/10/2026

🤔 What happens through the tightest restriction?

In an under-reamed well, a must compress sufficiently to pass through the smaller ID of the previous casing while minimizing additional drag and its effect on hookload. Once it enters the larger open-hole section, the bows must recover to support the required standoff.

Centek’s patented UROS offset-bow design was developed specifically for this challenge, delivering more than a 50% reduction in start and running forces compared with traditional under-ream centralizers. https://zurl.co/6edgo

For the most restricted offshore and deepwater applications, the UROS-CT close-tolerance model applies the same offset-bow principle in a low-profile design engineered to precise ring-gauge tolerances.

Watch the film to see how the UROS design performs through a restriction:
https://zurl.co/qrv1m

Centek works with operators in established producing basins and rapidly developing offshore regions—from Brazil to Guyana and Suriname. Our well-specific simulations help determine where specialist close-tolerance performance is required and where a more cost-effective solution can meet the demands of a less challenging section.

Request a free Centek simulation:
https://zurl.co/HPxm3

The Centek UROS product was developed in 2010 and was born out of i...

27/10/2026

👆One market. A wide range of well requirements.

Over the past five years, Centek has supplied Brazil with centralization equipment covering an extensive range of sizes, applications and performance requirements.

This has included:
• UROS, TUR and close-tolerance products for challenging under-reamed applications - https://zurl.co/2XolD & https://zurl.co/vadwK
• Premium hinged and single piece centralizers, including the S-H and S2 - https://zurl.co/0GcZw & https://zurl.co/yoXqg
• OBH-W https://zurl.co/AJSHW and OBS https://zurl.co/HUevY products providing dependable, cost-effective options
• UHD stop collars for applications requiring exceptionally high holding force - https://zurl.co/Ke9C0

The breadth of products supplied reflects the diversity of Brazil’s casing programs—from straightforward requirements to technically demanding offshore wells.

Different wells require different solutions. Centek provides the product range and engineering support to make the right selection for each application.

21/10/2026

🇧🇷 New wells, same standard. As operators ramp up drilling activity offshore Brazil, Centek is already on the ground working alongside them — helping define clearer, performance-led specifications for centralization and stop collar technology that meet API requirements from day one.

It's the same deepwater, extended-reach expertise that's delivered reliable stand-off and cementing results worldwide, now applied to one of the industry's most active new well markets.

Better specs. Better runs. Better wells.

20/10/2026

Centek has supported Guyana’s offshore wells since the region’s early exploration phase—supplying centralizers and stop collars across complete casing strings and providing simulations to support product selection.

That experience matters as Guyana moves into its next phase. Uaru alone is expected to include up to 44 production and injection wells across as many as 10 drill centers, increasing the value of repeatable casing deployment and cementing performance.

Our latest editorial combines this established in-region support with evidence from offshore applications in the Gulf of Mexico, Uruguay, the UK and Denmark. https://zurl.co/6wRfE

Different locations and well designs—but familiar engineering questions:

❓Can the centralizers pass every planned restriction?
❓Will the centralizers provide the required standoff?
❓Can the casing reach depth with manageable running forces?
❓When is a specialist solution essential, and when could a more cost-effective option meet the section requirements?

Planning a well offshore Guyana? Request a free Centek simulation to compare products and spacing, assess predicted standoff and running forces, and identify the right performance level for each section before the casing run. https://zurl.co/K8LXb

19/10/2026

🇸🇷 Our latest editorial pairs Centek’s established work in Suriname with offshore evidence from Uruguay, Nigeria, the Gulf of Mexico and Malaysia. https://zurl.co/AFH5A

Centek is already supporting Suriname’s offshore sector, supplying centralizers and stop collars across complete casing strings since the country’s early exploration phase.

As GranMorgu progresses toward first oil in 2028, that direct experience—combined with well-specific simulation—can support repeatable product and spacing decisions across a growing development program.

The case studies show how engineered centralization has helped operators:

✔️ Retain flexibility around contingency casing plans;
✔️ Design and validate a bespoke large-diameter TUR solution;
✔️ Run casing through deepwater subsea wellheads
✔️ Pass the same restriction during RIH, POOH and a subsequent re-run.

Different basins and well designs—but engineering lessons that complement Centek’s direct Suriname experience.

Will the selected equipment clear every restriction, provide the required standoff and keep running forces manageable? Could a more cost-effective option meet the requirements of a less challenging section?

❓Planning a well offshore Suriname? Request a free Centek simulation to compare products and spacing, assess predicted standoff and running forces, and select the right performance level for each section.

https://zurl.co/ivvFt

13/10/2026

Manufactured to order does not have to mean a long wait.

We manufacture centralizers and stop collars in Oklahoma City, within easy reach of operators and service companies across the . Our US manufacturing capability allows additional sizes and configurations to be produced to order—without relying on overseas production, ocean freight, port handling or customs clearance, or being limited to what is currently in stock.

That means:
⏩ Faster, more predictable shipping into the Permian
🏪 Local stock of frequently required products
📏 Made-to-order sizes for specific casing programs
👥 Direct access to US-based engineering and product support
🚚 Less exposure to international freight disruption and tariffs

From economical USA single-piece bow-spring centralizers to high-performance S2 products, Centek can supply the right level of performance for each section—paired with a matching stop collar.

Made in Oklahoma City. Engineered for US wells. Ready for the Permian.

Discuss product availability or an upcoming casing program with the Centek USA team:
https://zurl.co/wuvDY

11/10/2026

More than 3.5 miles of horizontal reach changes the centralization challenge.
Recent reporting highlights Permian laterals extending between 3.5 and four miles as operators pursue greater reservoir contact, improved recovery and greater capital efficiency.

Learn more with our latest editorial: https://zurl.co/IEeqX

Centek products have already supported casing projects with well paths of up to four miles, providing relevant experience as Permian well designs continue to extend.

Longer well paths increase the potential for cumulative casing contact and place greater demands on torque and drag, hookload, hole cleaning and casing cementing.

Reaching TD is only part of the requirement. The casing must also be effectively centralized to support cement placement and long-term zonal isolation.
For challenging curves and extended laterals, the USA-built Centek S2 combines high restoring force with the flexibility and running performance needed for demanding casing programs.

Centek simulations can compare products and spacing across the full string—identifying where S2 performance is justified and where a lower-cost bow-spring solution can meet the section requirements.

Request a free Centek simulation:
https://zurl.co/C0Yf2

07/10/2026

Three- and four-mile laterals are moving from exception to development strategy in the Permian Basin.

With horizontal sections now reported beyond 18,000 ft - and horseshoe wells extending development options - operators must balance casing runability, standoff and cement placement against intense cost pressure and increasingly demanding well paths.

Our latest editorial examines how Centek supports that balance with:

➡️ Cost-effective USA and OBS single-piece bow-spring centralizers
➡️ High-performance S2 centralizers for challenging curves and extended laterals
➡️ OBH-W hinged centralizers for larger casing and coupling applications
➡️ Stop collars selected for the anticipated loads and casing grade
➡️ Free simulations to compare predicted running forces, hookload, standoff and spacing

Centek products have already supported casing projects with well paths of up to four miles. We revisit proven Permian results, including a 16,695-ft Wolfcamp casing string that reached bottom in 16.5 hours rather than the expected 30-35 hours, and 135 S2 centralizers that were pulled, inspected and successfully re-run. https://zurl.co/v6G8L

Centek has manufactured products in Oklahoma City since 2012, providing local stock, technical support and fast shipping into the Permian.

Read the editorial: https://zurl.co/1lGkn

Planning your next casing program? Request a free Centek simulation to identify where premium performance is required—and where a lower-cost bow spring solution can meet the demands of the section:
https://zurl.co/0IY3P

05/10/2026

Brazil’s deepwater sector continues to set new benchmarks. In June, the Búzios field reached a record 1.2 million barrels per day—underlining the scale and intensity of the country’s offshore well construction activity.

In Brazil’s pre-salt wells, flush-collar casing can provide a streamlined profile through subsea equipment, thick salt sections and long, highly deviated intervals. But removing the casing-collar upset also removes the natural stop that helps retain . Without sufficient holding force, centralizers can migrate or bunch together, compromising the planned spacing and standoff required for effective cement placement.

A Brazilian operator has addressed this challenge by pairing Centek S2 centralizers with UHD stop collars on flush-collar casing strings. Rated to provide ≈ 150,000 lbf of holding force, the UHD is designed to keep centralizers securely positioned in demanding applications. It can also be installed using a torque wrench, without specialist installation equipment.

As Brazil’s offshore developments grow in scale and complexity, stop-collar selection cannot be treated as an afterthought.

Read more about the role of high-holding-force stop collars in flush-collar applications:
https://zurl.co/HQzy3