Transcript
Page 1: Claxton products and services overview

www.claxtonengineering.com

Great Yarmouth - Main Base

ClaxtonBureside HouseNorth River RoadGreat YarmouthNorfolk, NR30 1TEUK

T: +44 (0) 1493 744500E: [email protected]

Aberdeen

ClaxtonTern Place House, Tern PlaceBridge of DonAberdeenScotlandAB23 8JX

T: +44 (0) 1224 452371E: [email protected]

Dubai

ClaxtonPO Box 262490Jebel Ali Free ZoneGate 5, South SideFZS1 ALO5 Dubai

T: +971 4 8863540E: [email protected]

Page 2: Claxton products and services overview

Claxton has long been a trusted name in the oilfield. As abusiness, we’ve grown significantly over the years in orderto respond to our clients needs. However, throughout ourgrowth, we’ve always asked ourselves three questions:

Are we giving the best, most responsive, service we can?Is there a more cost effective and safe way of doing this?Can we offer a better solution to our clients?

In continually answering these questions, Claxton has built an enviablereputation and gained enormous experience in shallow water engineering.

The content of this brochure shows how those three simple questionshave shaped a broad, deep product range for well systems, structuresand pipelines and gained us a catalogue of innovation that we’re trulyproud of.

We look forward to asking the same three questions of a solution to yourown operating needs very soon.

Laura Claxton Managing Director

“Claxton are approachable,very responsive and providefast, efficient, cost-effectivesolutions to our needs”independent customer research

Responsive 02

Claxton Operations 04

Products

Asset Life Extension 06

Camera Systems 08

Cutting & Hot Tapping 10

Drilling Risers & Tensioning 12

Decommissioning 16

Templates & Structures 20

Tieback Engineering 24

Wellhead Services 26

Rental Equipment 28

Page 3: Claxton products and services overview

responsiveIn 2008 and again in 2010 Claxton,through an independent researchagency, carried out a study of ourclients’ perception of the companyand our services. When we asked customers to tell us what they thoughtof Claxton one word was used timeand again: responsive.

During the last 25 years we’ve takena real pride in the pace at which werespond to our customers operatingchallenges. From a simple rental hub,to a full riser system, through to largescale one-off projects – you can besure that Claxton will respond quickly,efficiently and safely.

Claxton isresponsive – butdon’t just take ourword for it.

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Page 4: Claxton products and services overview

Our services reveal Claxton’s uniqueindustry experience and deepunderstanding of operators needs.From riser design, right through towell abandonment services, Claxtonhas a suite of services withextraordinary breadth and depth.

Claxton, an Acteon company, leadsthe way in jack up engineering andservices across the life of the asset– from pre-drilling to drilling,production and decommissioning.

Our services include rentalequipment, modification andrefurbishment, tailored engineering

for project-specific applications andmaintenance programs.

All our services are backed up by aworld class in-house projects teamand design-led engineeringcapability. We pride ourselves on thespeed and quality of the service weprovide for clients across the globe.

Claxton Operations

Acteon has an outstanding portfolioof complimentary products andservices for the subsea marketplace.The experience shared by Acteoncompanies opens the opportunityfor a different approach to subseaoperations and services.

Find out more at www.acteon.com

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Page 5: Claxton products and services overview

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Asset Life Extension Platform Slot Recovery

Claxton has a provenrecord of helping operatorsextend the life of assets -both large and small.

Responsive FactBy providing a novel toolingpackage, Claxton saved a client£300,000 per well for a five welltubing recovery project. We suppliedour bandsaws with personnel andlifting equipment to recover 1000mof tubing with an average stringweight of 60,000lbs.

Asset LifeExtension

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As operators cope with maturing fieldsand challenging market conditions, ithas become increasingly important tomanage and extend the life of assets.

Claxton has a suite of field-provenproducts and services designed tosupport this aim, including:

• Additional guides on existingstructures

• Conductor and tubing recovery

• Cold cutting

• Drilling and pinning

• Hot tapping

• Retrofit centralizers

• Platform slot recovery

• Maintenance programs

• Tailored engineering for customapplications.

Asset Life Extension

Slot recovery has proved to be a robustsolution for operators looking to extendthe life of their assets. Claxton has along history of successful slot recoveryoperations.

Leading the way in slot recovery:

Claxton leads Slot Recovery operations.With over 15 years of on- and offshoredecommissioning and slot-recoveryexperience we have developed manyinnovative solutions to the technicalchallenges presented by various difficultsituations. These challenges haveincluded performing rigless operationsand working with fully cemented annuliand potentially unstable conductorconnectors.

Slot Recovery from Claxton issupported by an extensive suite ofrigless conductor recovery services

Platform Slot Recovery

that have been used withsuccessful and cost-effective resultsacross the globe – we performed 16slot and conductor recovery projects in2010 alone.

Page 6: Claxton products and services overview

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Crane Boom

Allows crane operators to monitor thearea around their load. CraneCam isEEx rated and enhances crane safety.

MultiCam

A full-function disposable camera formonitoring installation operations.

CamScan

A robust pan & tilt downhole camerawith LED lighting, high image quality.

Ultra Low Light

Our low-light camera operates effectivelydown to 0.0003 lux, providing maximumvisibility in the poorest conditions.

Robust, field proveneasy-to-use camerasystems for rapid call-offall around the globe.

Responsive FactIn addition to the products in thisbrochure, we also offer multiplesupply options to suit yourapplication – for instance, we haveslim-bore and zoom variants ofCamScan cameras, and can engineercost effective brackets for mountingcameras on equipment.

CameraSystems

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Claxton sells more than just camerasystems.

Having over two decades of workingsubsea under our belt, we understandthe challenges operators face ontheir projects, the harsh treatment ourequipment must withstand and thevisual performance needed to makedecisions.

It’s thanks to this experience that ourcamera systems are among the bestyou can find anywhere.

Camera Systems

Bespokemountingbrackets

Slimborecameramodules

ZoomcamerasEEx

housings

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Claxton has everything fromrobust bandsaws, to state ofthe art abrasive cutting –and hot tapping to15,000psi

Responsive FactIn 2010 Claxton designed and builtthe world’s first API-rated 15,000psihot tapping machine. The toolexpands our field-proven hottapping fleet and subsea hot tappingexperience into territory othercompanies will struggle to follow.

Claxton provides a suite of industry -leading cutting tools and services. Wepioneered subsea abrasive cutting andprovide robust band saws to name buta few of the options on offer.

• RAPIER™ casing and tubingbandsaws

• SABRE™ abrasive jet cutting

• Cold cutting equipment

• Cut verification systems

• Casing and tubing recoverypackages.

Cutting Tools

Claxton designs, supplies and operatessystems for the provision of hot tappinginto valves on wellheads, Christmastrees, check valves and all types oftubulars for both surface or subseaoperations. We provide this service forthe global upstream oil and gas industryas well as downstream petrochemicalfacilities and utilities – working onpipelines, flare lines, valves etc.

The Claxton system is robust,field-proven and backed by a businesswith decades of oil and gas experience.

Benefits of the Claxton HotTapping system:

• Full pressure containment to allow for simultaneous operations

Hot Tapping

• Proven to cut from standard steel pipe, through to super-hardmaterials like honeycomb stellite

• Range of machines for applications up to 15,000 PSI

• Modular systems provide flexible project applications

• Systems that enhance safety and operational efficiency

• Hot tap size is limited only by the pressure that may be present

• Equalisation-controlling orifice valve reduces dynamic shock to thepressure retaining components

• Fully trained field-personnelavailable

Cutting &Hot Tapping

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Claxton is the leading supplierof subsea risers and tensioningequipment – with multiple systemoptions for your project.

Claxton has been supplying jack up risersystems since 1990 and has pioneereda number of technologies in that time –including the first positive grip tensionrings and supplying the first-ever12,200psi API/NACE compliant riser.

Subsea Riser Systems

Drilling Risers& Tensioning

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Claxton Riser System Overview

12,200psi - Flange 5,000psi - Flange 5,000psi - Quick Connect

Joint Connector SRP Shrink-Fit high API, custom or SRP OilStates MerlinType performance flange high performance flange

Joint Make-Up Optimised make-up Optimised make-up OilStates make-upwith 100% ring-type with 100% ring-type tool & crew bolt tensioners bolt tensioners

Outer Diameter 24" 24" 24"

Inner Diameter 18.3⁄4" 21" 21"

Wall Thickness 2.17" 1.1⁄2" 1.1⁄2"

Operating Pressure 12,200psi 5,000psi 5,000psi

Test Pressure 13,500psi 7,500psi 7,500psi

Coating TSA Coating TSA Coating TSA CoatingNorsok M501-7 Norsok M501-7 Norsok M501-7

Material ASTM A182 F22-80ksi X65, X80 X65, X80

Subsea Vetco DWHD Vetco E, ExF & EWHD Vetco E, ExF & EWHDH4 Connector

Quick Connects Vetco NT-2 & Dril-Quip Vetco NT-2 Vetco NT-2 Radial Bolt package

Riser Tensioning Full suite of tensioning Full suite of tensioning Full suite of tensioningequipment ‘from stock’ equipment ‘from stock’ equipment ‘from stock’

Our riser project experience list extendsto over 100 projects since 2005 alone.Email [email protected] your copy and compare our recordto other suppliers.

Page 9: Claxton products and services overview

Responsive FactHaving pioneered the first-ever fullyadjustable riser tension ring, wedidn’t rest on our laurels. Our team in-stantly took the design and improvedit to be smaller, lighter and easier toinstall. The result, our Slimline Posi-tive Grip Tension Rings, can be pre-installed to the tension joint and runthrough the rotary table.

Drilling Risers & Tensioning

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Claxton has supplied many major rigoperators with riser tension systemsthat mitigate riser stress and enhancefatigue performance

These systems apply a pre-calculatedload (tension) to provide rigidity tothe riser or conductor during drillingoperations, and reduce the applied axialloading from the blowout preventerstack and well control equipment.

Our tension systems can be supplied‘from stock’ for rental purposes – orrapidly manufactured to suit a specificrig or application. Claxton has suppliedsystems up to a record-breaking1,000 tonnes.

Tension Systems

Our fleet of riser systems issupported by a complete range ofsystem connectors.

• H4 connectors (DWHD and ExF)

• High performance nipple-uppackages (NT-2)

• Test stumps and skids

• Handling tools

• Adaptors, flanges and crossoversas required

• Bolt tensioning equipment

• Umbilicals and reels

• C-plates and tension rings

• Spools and clamps

• HPUs

• Overshot connectors.

Riser Tooling

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Many operators, rig and drillingcontractors already call Claxton thanksto our…

Unique Experience

Our designs are in successful use bynumerous operators and have beenmuch-copied by the competition.However, the technical expertise thatcreated our tension rings can only befound within Claxton.

Flexible Supply

We have a well-earned reputation forflexibility, so if you have a projectspecific application remember ourtension rings can be dressed with slipsfor non-standard pipe sizes.

Proven Quality

Our tension rings have been proven onrigs working all around the world…meaning you can trust them to performon your project.

Rapid Mobilisation

Claxton has a large fleet of tensioningequipment, much of which is ready for‘from stock’ call-off. Contact us todayto discuss your requirements.

Tension Rings Slimline Tension Rings

The patented Claxton Slimline tensionring can be taken from a containerdirectly onto the drill floor, installedoffline and the riser and tension ring canbe run through the rotary table together,saving rig time. Designed in-house byClaxton, the slimline tension ringmaintains the rugged performance weexpect of more traditional designsdespite being significantly smaller.

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Claxton’s tools and processeshave defined riglessdecommissioning and have aproven record offshore.

Decommissioning

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Responsive FactWe performed the first-ever riglessabandonment in the North Sea on aconductor with a fatigue failure – anoperation that ran smoothly despiteonly a few weeks notice, a bespoketooling package and zero margin forerror. We’ve since used the samepackage to recover many conductorswith the same speed and safety.

Claxton tools and processes have,in many ways, defined riglessdecommissioning in the North Sea –and we’ve had input into many of theworld’s most significant abandonmentcampaigns.

We apply best-in-class technologiesfrom our in-house team to safelyand cost effectively abandon wells andrecover conductors. These includethe first subsea abrasive cuttingsystem, SABRE™ and the multi-awardwinning SWAT™ suspended wellabandonment tool.

Our experience, coupled with extensivein-house tailored engineeringcapabilities and a proven record ofsuccessful projects, makes Claxton theobvious choice for well abandonment.

Abandonment Services

Claxton specialises in the following:

• A suite of proprietary, field proven, abandonment tools and techniques

• Conductor recovery packages

• Wellhead and Christmas Treeremoval

• Bespoke interfaces to connect to existing infrastructure - such as false rotary tables or load spreader beams

• A range of cut verification options

• Control-line and casing cutting

• Wellhead recovery tools

• Platform or subsea abandonment campaigns

• Supply of experienced and highly professional engineering personnel.

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Responsive FactWe recently supplied a novel subseadrilling and pinning machine tosecure a conductor with connectorintegrity issues. The subsea drillingunit had a unique high tensile drill bitthat was released hydraulically toform a load pin after boring throughthe casings. Subsequently theconductor was recovered withoutincident or fear of connector failure.

The Claxton SABRE™ abrasive cuttingsystem is proven to simultaneouslysever all the casings in a well, regardlessof casing loading, eccentricity, or annulicontents.

Proven technology

SABRE™ has proven an invaluable tooland has seen successful use on someof the most significant abandonmentcampaigns. SABRE's abrasive jet exitsthe tool at transonic speeds – makinglight work of even composite materialssuch as cemented casings.

Using a jet of naturally occurring cuttingcomponents (garnet, water and air),SABRE™ has a low environmentalimpact. The system can be deployedfrom a vessel or platform, allowingsimultaneous abrasive cutting of multiplewell casings without impacting adjacentinfrastructure.

Benefits of SABRE™:

• Casings can be cut and recovered simultaneously or individually

• Can cut down to 6.5⁄8" applications

• Modular system footprint can be adapted to wide range ofapplications/deck layouts

• Cutting manipulators available to suit all standard casing sizes.

• Proven on numerous successful campaigns.

SABRE™ - Abrasive Cutting

We have abandoned over 100suspended subsea wells in the NorthSea for our customers. These category2 wells all required a shallow cementplug spanning all the casing annuli.

SWAT™ is deployed from the back ofvessel or through a moonpool, landedon the wellhead and then used to carryout casing perforation and placement ofthe required cement plugs in the well.

SWAT™

Recovery packages include:

• Rapier™ Casing Bandsaws – orappropriate cutting tool

• Double Drilling Units

• Hydraulic Power Units

• Lifting adaptors and equipment

• Offshore personnel

• Jacking or Torsion-based cutverification

A package similar to this was used byClaxton to recover a conductorsuccessfully during the first-ever riglessabandonment in the North Sea.

Recovery Interfaces

Our in-house project and design teamshave an enviable record in producingnovel, cost effective interfaces tofacilitate abandonment.

• Work decks to enable recovery without impacting adjacentoperations

• False rotary tables

• Tubing recovery masts

• Spreader beams to enhance therecovery operation where theplatform structural loading isinsufficient to recover theconductor.

Recovery Interfaces

Claxton supplies a field-proven packageof tools to recover conductors andcasing strings, either to abandon wellsor recover the platform slot – thesetools packages are complemented bytrained offshore personnel and Clax-ton’s experienced project engineeringdepartment.

We can simultaneously recover the 30"conductor and all internal strings,regardless of casing eccentricity orcementing.

Conductor/Casing Recovery

Decommissioning

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Benefits of SWAT™:

• Deployed from a vessel, removing the need a drilling rig

• A one-stop solution to place the final cement barrier across all annuli

• Deployed as part of a totalsuspended subsea wellabandonment package

• Proven across multiple successful offshore campaigns.

Page 12: Claxton products and services overview

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A leader in drillingtemplates with an enviablerecord in engineeringoffshore structures.

Templates& Structures

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Responsive FactClaxton has supplied over 3,000centralizers and designed, built andinstalled 56 subsea drilling templatesof all configurations and sizes. Thisproject experience simply cannot befound anywhere else.

Claxton has an proven track recordin providing both standard andnon-standard templates. Our templates,like many of our products, can beproduced to tight timescales.

Drilling Templates

How our templates add value:

• Class-leading experience in the design and installation – we're confident that we're among the most experience templatesuppliers in the world

• Fast response and short lead times,due to a vast library of designs

• Preparation of detailed andoptimised rig-specific installation procedures and equipment lists to minimise rig time required

• Designed to meet specificoperating requirements

• Local fabrication to further reduce lead times.

Types of template supplied:

• Bottom Founded – for standardapplications with relatively flat seabeds with an inclination that does not exceed project tolerances

• Conductor Supported – forapplications where a conductor is in situ. Primarily where the seabed requires the template be supported

• Conductor Installed – the template is run with the conductor. Thebenefit being that installation work is primarily surface based – thisapplication is useful for applicationswhere an ROV is not available.

Page 13: Claxton products and services overview

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Claxton leads the way in offshore,conductor guide centralizers. Duringthe last ten years we have installedover 3000 centralizers for clients aroundthe world.

Critical Interface: Whilst appearing tobe simple devices, centralizersprovide a service at a critical interfacebetween the platform structure andthe well – where the conditionsimposed upon them can be severe.Our extensive knowledge and total-system-approach means clients canbe confident about our centralizersdelivering the performance needed toprotect the conductor over a longworking life.

Centralizers

Centralizer Types Supplied

Cellar Deck Centralizers

Uppermost centralizer, in air, helpsto stabilise tree and flowlines

Conductor Guide Centralizers (fixed)

Used at various levels onconductor from splash zone to seabed to stabilise conductor

Conductor Guide Centralizers(adjustable)

Similar to the fixed version butwith adjustable blades to setgap – using patented Claxtontechnology

Claxton supplies overtrawablestructures to protect assets such aswellheads, Xmas trees and manifoldsfrom harsh environments andmaritime activity.

Our structures are designed to Norsokstandard U-001/ISO 13628-1 and canbe remotely installed.

Claxton designs and builds subseastructures for installation from either adrilling rig or back of boat. We canassist with and seek verification fromthe local authorities and/or fishing/trawling experts with experience fromthe particular area concerned.

We bring the benefits of our worldwideexperience in subsea operations to

Protective Structures

provide a full service from concept toinstallation, backed up with a suite offield-proven running tools, installationprocedures and industry-leadingcamera systems to verify successfulinstallation.

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Templates & Structures

Can Type Guide Centralizers

Designed for deep waterapplications where there issignificant vertical conductormovement

Retrofit Guide Centralizers

Used to replace lost or missing guide centralisers

Internal or Cementing Centralizers

To space out internal strings – allows cement flow

Claxton has a range of options withineach of these types to covernumerous applications – contact usfor more information.

42 6Adjustable3 Internal5 RetrofitExternal CanCellar Deck1 Fixed Blade

Centralizer types supplied

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2

3

4

5

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Page 14: Claxton products and services overview

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A world-leader in tiebacks,Claxton has performedover 700 for clients allaround the world.

With more than 700 performed acrossthe globe, our understanding of thetieback process is second to none.

Clients benefit from a wide range ofcustom designed tieback rentalequipment, including tooling anddown-hole camera systems. These havebeen developed to complement themajor wellhead and mudline/subseasystem manufacturers’ components.

Benefits:

• Field-proven procedures that avoid costly mistakes

• Management of all interfaces(operator, drilling contractor,platform, equipment suppliers)allowing the client to focusresource elsewhere

Tieback Engineering

• Incorporating tieback engineering into template design ensures cost effective operations

• Access to a wide range of specially designed tieback rental equipment for this field of operations

We’re market leaders in tiebackengineering for a reason – we take afull-service approach from planning, toprocedures, to interface managementto the actual offshore operations,including the provision of the specialisttooling. Tiebacks from Claxton arefurther enhanced via our tailoredengineering capability.

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TiebackEngineering

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Responsive FactOur tieback experience allowedus to bespoke-design a tiebackconnector for wells with between2.5 and 4.25 degrees inclination(normal maximum is 1.5 degrees) –enabling the operator to tiebacksuccessfully.

Page 15: Claxton products and services overview

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Being independent frommajor wellhead manufacturersenables Claxton to respondquickly to the needs of ourcustomers.

Claxton designs and manufactureshigh-quality wellhead systems to suit allcasing size requirements – to full APIspecifications, including:

• Conventional stack-up wellheadsystems that use mandrel casing hangers or slip-and-seal casing hangers

• Full-bore and slim-hole multi-bowl-style casing head systems fordrill-through system technologies, which utilise primary mandrelhangers and packoffs for casingsupport with contingency slip-and-seal casing hangers

• Systems for gas and oil wellapplications, fully design-approved for use both on- and offshore.

Alongside full wellhead systems Claxtonhas a long history of providing wellheadservices to enhance clients’ operations.These include:

•Wellhead installation – provisionof personnel and installationtooling

•Wellhead maintenance – complete wellhead testing, monitoring andrepair services

•Workovers – cost-effectivelyreplacing existing wellheadequipment

• Retrofit parts – Claxton can rapidly produce replacement parts toextend the operating life of existing wellhead equipment

•WAVE – a bespoke Well and Valve Equipment database to track andoptimise wellhead maintenance

• Valve Saver – a synthetic lubricant with a proven ability to free stuck valves and extend operating life.

WellheadServices

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Responsive FactClaxton Wellheads are availableto meet the complete API 6Amaterial specifications in pressuresfrom 3,000 to 20,000psi. What’smore, our systems are backed byClaxton’s robust qualitymanagement – covering both designand manufacture. Claxton has theISO/NQA ‘triple crown’ of ISO 9,001,14,001 and QHSAS 18,001.

Wellhead Systems Wellhead Services

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4,000 quality-assured rentalitems, waiting for immediatecall-off on your project, now.

Responsive FactIn 2010 Claxton expanded ouralready-strong QA department toensure all our ever growinginventory of rental equipment iskept in first class condition, fullycertified and ready for call-off ata moments notice.

Claxton holds a vast inventory ofoffshore rental tools, adaptors andequipment, including one of the largeststocks of drilling risers, subseaconnectors, adaptors and associatedtooling in the whole of Europe, possiblythe world. This is supported by a rangeof well control equipment and an abilityto rapidly refurbish and recertifyclient-owned equipment if required.

All of the following are available for rapid call off:

• API rated flanges

• Clamps

• Spools

• Hubs

• Gaskets and sealing rings

• Subsea camera systems

• Overshot connectors

Rental Tools

• Riser systems and Riser joints

• Tension rings and Tensionsystems Gate valves

• Wellheads/Xmas treeassemblies

• BPV polished rod lubricators

• Hydraulic power units

• DSA's/double studded adaptors

Claxton has been supplying rentalequipment to operators and rigs since1985 – and naturally all of ourequipment comes fully QA approvedwith the requisite certification.Additionally we have a proven recordof rapid equipment supply and caneven modify equipment at shortnotice to serve specific or unforeseenoperation issues – thanks to ourin-house team of design and FEAengineers.

RentalServices

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Page 17: Claxton products and services overview

www.claxtonengineering.com

Great Yarmouth - Main Base

ClaxtonBureside HouseNorth River RoadGreat YarmouthNorfolk, NR30 1TEUK

T: +44 (0) 1493 744500E: [email protected]

Aberdeen

ClaxtonTern Place House, Tern PlaceBridge of DonAberdeenScotlandAB23 8JX

T: +44 (0) 1224 452371E: [email protected]

Dubai

ClaxtonPO Box 262490Jebel Ali Free ZoneGate 5, South SideFZS1 ALO5 Dubai

T: +971 4 8863540E: [email protected]