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WHEREVER YOU WANT TO GOWE’LL GET YOU THEREFull product catalogue. Released 31st December 2021Excellence to the Core

OUR MISSIONWE HAVE BUILT A GLOBALREPUTATION ON THE WORLDLEADING PERFORMANCE OF OURUNIQUE CENTRALIZERTECHNOLOGYNow, we’re on a mission: to build on this leadershipthrough intelligent engineering solutions that enablesafer and more productive access to energy onewell at a time.Company highlights: Operating globally, throughout Europe, the Americas,Asia-Pacific and the Middle-East, working with majoroil companies The largest centralizer manufacturing capacity in theworld across 3 manufacturing basis Expert, highly trained and dedicated global customersupport team Engineers work in the field with customers toprovide optimum solutions Manufacturing and quality control carried out inhouse with testing through the supply chain andfull product traceability Well simulations can be provided using ouradvanced, proprietary software Wide range of quality centralizers for all well types

EVERY MINUTE ON A RIG MEANS MONEYFrom geothermal to oil & gas, and from land to ultra-deep water, operators are constantly pushing the boundaries of where energy can be found and extracted.Centek outperforms the competition by finding solutions to maximize efficiency and save time and costs. Centek products create optimized standoff, cementation andflexibility down hole for faster runs and improved cementation results.SAVE TIMEIMPROVE RESULTSIn today’s volatile drilling environment, time is the only thing left to cut. Centekproducts frequently save hours of rig time by getting to total depth, with no issues.We’ve got 20 years’ experience of use in the field with our best-in-class productsand a proven track record of value for the money.LOWER RISKOUR PRODUCTSOur centralizers and stop collars are proven to lower the risk of delays, leaks andchanneling - providing the centralization needed for a robust cement sheath.Our full string product line means we have the right tools for all your wellboresections, formations and down hole conditions. All from local manufacturingfacilities.REDUCE COSTSReliable, dependable, durable and available when you need it, our extensive rangemeans we have the right centralizer for every casing running scenario.Excellence to the Core

THE PRODUCT OF CHOICE FOR ALL APPLICATIONSCentralization and the ease of running casing is often abalance between strength and flexibility and risk and reward.To help with product selection we’ve created 4 levels foronshore and offshore wells and the optimum centralizer werecommend used at each level. This is indicated alongsideeach product on our collateralLevel 1As sector forerunners we’ve changed perceptions, standards andquality; set benchmarks and created a new category of centralizers,constantly enhancing our reputation as leaders in our field.Bringing the best to the business was hard, staying there is toughbut being an industry leader is far more rewarding than replicatingothers. Our aim is to work with our customers to develop newopportunities togetherLevel 2Level 3Excellence to the CoreLevel 4

LEVEL 1 CENTRALIZERSOur level 1 centralizers are heat treated for strengthand have, pressed, welded and non-welded steelbows for optimized stand off in less challenging wells.WELL TYPEOPRThey are designed for onshore, vertical and slightlydeviated applications where an economic solution ispreferred but performance is expected.All Level 1 bow springs are designed to exceed API10DONSHOREPRODUCT NAMEMechanicalHingedPositivestandoff RigidCentralizerOBHMechanicalHinged BowSpringCentralizerOSNOBH-WSolid withWeldedpressed bows Hinged BowSpringCentralizerOBWWelded SlipOn xcellence to the CoreCentralization and the ease of running casing is often a balance between strength andflexibility which combine to support, what we call, 'runability'. To help with product selectionwe've added a rating to all our products for flexibility, runability and inherent strength.

LEVEL 1 CENTRALIZERSOBHMechanical Hinged Bow SpringBow springs are manufactured fromhigh quality alloy steel, hot bent toshape using dies and then heattreated for consistent springcharacteristicsKey Information and ratingsSizing from 4 1/2” to 20”Stop collar available with same technology OPRMechanical Hinged PositiveStandoff RigidThe OPR offers an economicalalternative to solid body centralizers in arigid design that maximizes fluiddynamics and provides optimizedstandoff, typical of rigid centralizers Economic choice Positive standoff Maximizes fluid dynamicsKey Information and ratingsSizing from 4 1/2” to 18 5/8”Available with stop collar with the same hinge30% lower delivery and storage costsExtended profileEasy field assemblyDesigned to exceed API 10D

LEVEL 1 CENTRALIZERSOSNSolid Body Centralizerwith Pressed BowsKey Information and ratingsSizing from 4 1/2” to 13 3/8 ”Available with range of high strength stop collarsMade from solid steel with pressed andwelded vanes, the OSN functions like abearing during pipe rotation and helpsto reduce torque requirements High axial load strength Straight and right-hand spiral vane designs availableto maximize fluid dynamics Steel construction provides superior toughness

LEVEL 1 CENTRALIZERSOBWWelded, Slip On Bow SpringCentek’s unique metallurgy and heattreatment process allows the OBWto be run in hole with minimal startand running forces, whilst providingexcellent strength and standoff Designed to exceed API 10D Economic choice / highperformance Slip-on designOBH-WKey Information and ratingsWelded Hinged Bow SpringSizing from 4 1/2” to 26”The OBH-W hinged centralizer featuresheat-treated, spring-steel bows which arewelded to rigid high strength end bandsfor optimized standoff in less challengingwellsAvailable with high performance stop collars Can be used over casing couplingsEconomic choice / high performanceDesigned to exceed API 10DUnique, high strength hingeKey Information and ratingsSizing from 4 1/2” to 26”Available with high performance stop collars

LEVEL 2 AND 3 PRODUCTSIn 2001 Centek group revolutionized centralizer design andintroduced the radically different single piece, slip on, bowspring centralizer. Over the past 20 years we have honed thisdesign to include a range of high-performance slip-on, heavyduty and hinged centralizers.Centek OBS-2 and S2 centralizers are robust and ultra-highstrength with no weak points but with the flexibility andrestoring force to absorb both axial and radial loads. They aremanufactured to gauge and provide maximum standoff,eliminating cement channeling.The patented bow spring design allows for flexibility whenencountering tight spots with no compromise on performanceintegrity.WELL TYPEONSHOREOBS-2PRODUCT NAMESingle Piece,Slip On, BowSpringCentralizerONSHORE & OFFSHORES2Single Piece,Slip On, BowSpringCentralizerS2HINGEDHinged, BowSpringCentralizerbow springS2-HDHeavy DutySingle Piece,Slip On, BowSpringCentralizerFLEXIBILITYAll Centek bow springs are tested to exceed API 10DRUNABILITYSTRENGTHExcellence to the CoreCentralization and the ease of running casing is often a balance between strength andflexibility which combine to support, what we call, 'runability'. To help with product selectionwe've added a rating to all our products for flexibility, runability and inherent strength.

LEVEL 2 CENTRALIZERSOBS-2Single piece, bow springThe OBS-2 is our most cost competitivesingle piece, bow spring centralizer. Ithas been developed for onshore wellswhere its single piece constructionprovides strength downholeKey Information and ratingsSizing from 4 1/2” to 14”Corresponding range of high strength stop collars 100% more products can be loaded on the pallet for lower transport and storage costsand the lowest carbon footprint of nay single piece centralizer Excellent fluid dynamics Designed to exceed API 10D

S2 CENTRALIZERSS2 HINGEDHinged, bow springThe S2 Hinged centralizer is highstrength and engineered for challengingapplications typically requiring a singlepiece product. It has a twisted hinge witha one of a kind “one way” hinge pin. S2Key Information and ratingsSingle piece, bow springSizing from 2 7/8” to 24”The patented S2 bow spring centralizeris the premium single piece choice forchallenging wellbores. Engineeredstrength and flexibility optimize RIHsaving operators time and money gettingto total depth.Available with high performance stop collars Enhanced rotation and reciprocation during RIHReduced torque and dragSupports cementing best practicesTested to exceed API 10DKey Information and ratingsSizing from 5 1/2” to 24”Available with high performance stop collarsTested to exceed API 10DUnique high strength hinge and hinge pin design is as strong as a single piece centralizerSafe and quick installation30% reduction on cost of transport and storage and lower carbon footprint

LEVEL1 CENTRALIZERSS2 CENTRALIZERSS2-HDKey Information and ratingsHeavy duty, single piece, bow springSizing from 5 1/2” to 14”Single piece construction means the S2HD has no weak points. It is designed forcasing running environments with heavyloads where a solid centralizer may beused traditionally.Available with high performance stop collars Tested to exceed API 10DUltra-high strengthReduced torque and dragEnhanced rotation and reciprocation during run-in-hole (RIH)

LEVEL 3 AND 4 PRODUCTSUnder reamed and close tolerance well sections create severalengineering issues which affect the run-in-hole (RIH)performance due to the bows being compressed while passingthrough smaller ID of the previous set casing. Our level 3 and 4centralizers are developed to perform in under-reamedsections found in some of the world’s most challenging offshorefields, combining high strength with high flexibility.Our close tolerance and sub centralizers can compress virtuallyflat to allow travel through narrow under-reamed well sections,providing the optimum solution for even in the most difficultdeepwater wells.WELL TYPEUNDER-REAMEDTURPRODUCT NAMESingle Piece,Bow SpringUROSSingle Piece,Bow SpringDEEPWATERTUR-CTCloseToleranceSingle Piece,Bow SpringUROS-CTCloseToleranceSingle Piece,Bow SpringTUR-SUBSingle Piece,Bow Springon a SubBodyUROS-SUBSingle Piece,Bow Springon a SubBodyFLEXIBILITYRUNABILITYSTRENGTHExcellence to the CoreCentralization and the ease of running casing is often a balance between strength andflexibility which combine to support, what we call, 'runability'. To help with product selectionwe've added a rating to all our products for flexibility, runability and inherent strength.

UNDER-REAM CENTRALIZERSTURKey Information and ratingsSingle Piece, Bow SpringSizing from 4 1/2” to 16”The TUR bow spring centralizer isdesigned to be run in under-reamapplications found in challengingoffshore fields. The TUR centralizer isproven to give good cementation in tightcasing and close tolerance applications.Available with high performance stop collars Highly flexible Application specific restoring force Large flow by area enhances fluid dynamics.UROSKey Information and ratingsSingle Piece, Bow SpringSizing from 7” to 16”The UROS centralizer is proven to givegood cementation in tight casing andunder-ream applications. Large flow byarea enhances fluid dynamics.Available with high performance stop collars Low starting forcesReduced running forces - saves timeApplication specific restoring forceEnhanced fluid dynamics