IntegrityTechnical Capability

Assuring the ongoing adequacy and suitability of operational assets is key to maximising productivity, and optimising the value of any subsurface, subsea, offshore or shore-based facility.

Technical CapabilityIntegrity

www.xodusgroup.com

Contents

03 Integrity – a process, not an event

04 Integrity Management Framework

04 Integrity Management Systems

05 Technical Integrity Assurance

06 Subsea

06 Pipelines

06 Well Integrity

07 Production Chemistry

08 Facilities Integrity

08 Pressure Systems

09 Structural Integrity

11 Materials and Corrosion

13 Vibration Engineering

13 Reliability and Availability

14 Process Safety

15 Project Experience

03

Integrity management applies to all

processes along the value chain, including

relationships with other companies. It

plays a critically important role in day-

to-day operations and spans the entire

asset lifecycle. Xodus uses an integrated

management system to apply technical,

operational and organisational solutions

to reduce risk, improve safety, minimise

environmental releases and improve asset

performance while reducing costs. Our

independence can enhance your credibility;

at the same time we can integrate with your

organisation to provide practical support.

Xodus helps organisations in the oil and gas

and petrochemical industries to establish

and maintain integrity management systems.

Combining our technical capabilities with

our broad range of skills and expertise,

and using resources available from our

offices worldwide, we can embed integrity

management into entire organisations,

specific departments or individual projects.

At the project level, we can provide support

from the design phase. This allows integrity

threats to be identified and resolved from

the start of a development when they are

easier and cheaper to deal with and allows

effective integrity management to be

performed throughout the operational life of

the asset and into life extension.

Versatility

Listening closely to the requirements of our

customers, Xodus tailors the delivery of

integrity support by providing services and

personnel that are a precise fit. For some

clients that means drawing on support

from Xodus personnel across the entire

range of our services. Others choose to call

on selected capabilities or even selected

individuals. Whatever the arrangement, we

work hard to manage interfaces effectively

and deliver the optimum result.

As a global operation, Xodus recognises

that in the Americas, Europe, Middle

East, West Africa and Asia Pacific there

are wide and varied regulations, regional

requirements and specific laws, as well as

differing environments onshore and offshore.

Our service can be tailored to meet the

regulations specific to your facility g

Integrity – a process, not an eventEffective integrity management establishes that people, processes, plant and systems are in place and that an asset is fit-for-purpose over the whole of its lifecycle. If this is achieved, personnel safety, environmental protection and production continuity can be maintained consistently.

Technical Integrity

AssuranceProcessSafety

Reliability and

Availability

Vibration Engineering

Materials and

Corrosion

StructuralIntegrity

Subsea

Pipelines

Inspection

WellIntegrity

Production Chemistry

FacilitiesIntegrity

PressureSystems

IntegrityTechnical

Capabilities

Integrated Services

Total Field Development

Integrated Projects

Integrated Asset Support

Management Consultancy

Providedby a third party

as a joint venture

Technical CapabilityIntegrity

www.xodusgroup.com

Potential failures that could endanger

the health and safety of personnel,

compromise the safe operation of the plant

or damage the environment are prevented.

It also allows barriers to be managed and

risks to be reduced to a level as low as

reasonably practicable. Xodus uses an

integrity management framework that

considers people, processes, plant and

systems, collectively working towards a

common objective with our clients – to

implement long-term company strategies

and processes that prevent any breach of

integrity in the asset g

Integrity Management FrameworkAn integrity management framework allows integrity threats to be identified and effective mitigation measures to be put in place throughout the operating life of an asset.

› Philosophy – a high level statement of

commitment to integrity management

› Strategy – system rationalisation,

boundaries of equipment and plant,

risk based methodology, monitoring

strategies and technology applications

› Plans – inspection and monitoring plans

in the context of operational activities

› Procedures – inspection procedures and

written schemes of examination detailing

method and acceptance criteria g

Integrity Management SystemsXodus assists clients in creating integrity management systems based on a suite of documents that have been proven to ingrain integrity management into the culture of the organisation:

05

No single TIA element can stand alone

without the others. All must be in place,

collectively providing visibility of the

technical integrity status including any

threats to technical integrity, with the means

available through established processes to

enable effective management and control.

Xodus offers independent technical

integrity assurance activities including

technical support, audits, reviews and

studies. Collectively, these activities provide

assurance where processes and practices

are satisfactory, and visibility where there

is opportunity for improvement. Successful

application of TIA allows our clients to

manage their asset integrity effectively and

supports the operations and maintenance

functions throughout the installation lifecycle.

Technical gap analysis

With the focus on the organisation’s

Asset Integrity Management System

(AIMS), we conduct front end operational

readiness analysis, and periodic reviews for

continuous development.

Technical support

Xodus can provide an independent

service or fully integrate with our client

representative to provide technical

support. Our services include developing

integrity management systems, strategies

and procedures, delivering technical

studies, carrying out Computerised

Maintenance Management System

(CMMS) validation, area condition

monitoring and quality assurance.

Technical integrity audit

With the focus on operations and

maintenance strategies and critical

processes, our scope includes electrical,

mechanical, structural and welding, piping

and corrosion, telecommunications, PA

and radio systems, drilling safety systems,

safeguarding systems, environmental

management system, strategies and critical

processes and regulatory compliance. In

addition to desktop analysis we conduct

validation checks on the installation. Our

frequency of the services varies from annual

audit programmes to stand-alone audits.

Xodus operates worldwide so we adapt our

audits to suit local statutory regulations,

codes or standards, as well as our clients’

own standards and industry good practice.

Operational excellence

This area of our service is geared to clients

who wish to set Minimum Acceptable

Standards (MAS) and who strive to be

internationally recognised world-class

performers. By engaging management and

the workforce to continually improve their

understanding of operational excellence,

and through the use of formal detailed

analysis, we provide:

› Development of key performance metrics

− Upstream: focus is on people, process,

plant and production

− Real estate: focus is on people,

process, statutory compliance and

maintaining business focus

› Detailed analysis of current performance

› Gap analysis

› MAS

› Ongoing technical support.

Technical studies

We produce technical studies that cover

the asset lifecycle and incorporate various

analytical techniques and methods of

problem solving.

› Engineering: project compliance

assessments, Root Cause Analysis (RCA),

site assessments, environmental support

including Best Available Technique (BAT)

and Environmental Impact Assessment

(EIA)

› Major construction projects and

turnaround (shutdown) critical path

evaluation, critical systems and processes

assessment/technical integrity assurance

› Steady state operations: trend analysis,

Root Cause Analysis (RCA), procedural

and operational compliance

› Management of ageing assets and life

extension: KP4 programme, Oil & Gas

UK Guidance application, detection

and evaluation of emerging trends,

obsolescence, analysis and smart

solutions g

Xodus proprietary web-based applications

support our TIA services. For example,

XMAINT provides a single, secure, muliti-

user environment for:

› CMMS data builds

› Maintenance reviews

› Actions tracking

› Spares management and obsolescence.

Technical Integrity AssuranceTechnical Integrity Assurance (TIA) provides a systematic approach to ensure people, processes and practices, systems and equipment are fit-for-purpose.

For further details go to

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and search for

XMAINT

Technical CapabilityIntegrity

www.xodusgroup.com

The purpose of a subsea integrity

management system is to provide a

demonstrable, auditable system for

the management of operating integrity

throughout the life of each subsea asset.

Assets are considered as a system with

sub-divisions including the wellheads,

trees, subsea modules (PLETs, PLEMs,

Terminations, HFLs and EFLs), flowlines,

pipelines, risers, flexjoints and umbilicals.

The implemented systems developed by

Xodus include the inspection, monitoring

and testing methods adopted for the

purposes of the subject asset, as well as to

define the baseline and periodic inspection,

monitoring and testing requirements

for each equipment type. Inspection,

monitoring and testing activities generate

up-to-date information with regard to the

condition of the production, transportation

and processing facilities. Xodus also

develops methodologies to process and

interpret this data so the asset can be

operated safely and efficiently, fitness

for service can be assessed objectively,

integrity can be managed prudently and

lifetime expectations can be met g

For pipelines transporting hazardous

substances, the consequences of poor

integrity management can be catastrophic

and could affect the resident workforce at

associated installations, the general public

in near proximity, and the environment.

Pipeline integrity management is therefore

an obvious priority for USDOT-PHMSA,

the Health & Safety Executive and global

pipeline operators.

Pipelines are subject to a range of

degradation mechanisms from both

internal and external sources. The relative

significance of the degradation will depend

upon factors such as the fluid(s) being

transported (including any contaminants),

the external environment, operating

parameters, materials of construction

and so on. The progressive deterioration

of assets such as pipelines is referred

to as ‘ageing’. Pipelines can also fail

through damage mechanisms that are

not age-related, for example, accidental

overpressure or dropped object damage.

All potential pipeline threats need to be

identified and assessed by operators

otherwise their pipelines may be at risk

of failure. Xodus develops programmes

that firstly identify the specific threats to

the integrity of the subject pipeline, then

assesses the potential consequences

and matches inspection and surveillance

methodologies accordingly g

Subsea

Pipelines

For further details go to

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and search for

subsea

Xodus’ broad technical expertise and

experience covers drilling and well

management. Our capability includes

analysis of well design and construction,

as well as the provision and assessment

of operational practices to assess well

integrity and implement solutions to

extend well life and productivity. By

applying technical, operational and

organisational solutions, we help our

clients to reduce the risk of uncontrolled

releases of formation fluids; helping them

manage the different well barriers without

compromising production g

“The application of technical, operational and organisational solutions to reduce the risk of uncontrolled release of formation fluids throughout the lifecycle of a well.”NORSOK D-010 Well integrity in drilling and well operations

Well Integrity

For further details go to

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and search for

wells

07

From field concept through to export and

refining, the deeper the understanding

of the fluid characteristics before they

reach the production system, the more

opportunity there is to deal with threats

to integrity so that value can be released

from the asset.

Subsurface

› Well control – prediction, prevention and

removal of scale build-up at subsurface

safety valves and control valves

› Casing integrity – chemical inhibition

of lift gas to protect against casing

corrosion scaling.

Subsea infrastructure

› Downhole equipment – assessment of

elastomer compatibility with produced

fluids and injected chemicals to avoid

compromising performance

› Pipelines – analysis of production fluids

and the production environment to

select the correct chemical injection

management allowing the risks of

corrosion, scaling wax formation and

asphaltene deposition to be minimised.

Process and facilities

› Water injection systems – management

of oxygen removal and prevention of

bio-film build-up

› Sour service and ISO 15156/NACE

MR0175 – monitoring and control of H2S

levels in sour production to keep the

production environment within the limits

of ISO15156/MR0175 specified for the

asset materials g

Production Chemistry

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and search for

production chemistry

Technical CapabilityIntegrity

www.xodusgroup.com

FEED and EPIC stages

At the early stages of a project, Xodus

provides invaluable design input to ensure

that materials, vessel and pipework

geometry, isolations and coatings

are optimised with future inspection

requirements in mind – a result of our

hands-on understanding of in-service

inspection requirements.

We devise strategies covering data

acquisition and equipment Risk Based

Inspection (RBI), taking into account

available Non-Destructive Testing (NDT)

technologies to maximise Non-Invasive

Inspection (NII). This minimises the costs

associated with these processes. Accurate

data from day one is essential to the long-

term delivery of integrity management.

We carry out baseline and continuous

inspection and data management –

managing work packs, reports, results

and RBI updates. Crucially, we support

our clients by analysing data as well as

populating client specified database tools.

We develop written schemes of

examination, future labour requirements,

required isolations, trades and next

inspection due dates so that procedures are

established and easily assimilated into your

day-to-day operations.

Risk-based inspection

Working closely with our client, Xodus

Group can tailor the RBI methodology

to ensure individual requirements for

pipework, pressure vessels, pipelines,

structures, tanks, relief valves, Pressure

Safety Valves (PSVs) and flexible hose

assemblies are satisfied.

Fitness for service

Fitness For Service (FFS) assessments

can be conducted to assess equipment

suitability for continued safe operation

following the identification of material

degradation or defects such as corrosion,

erosion or impact damage. Examples of the

procedures we use are:

› RStreng and B31G

› API579/ASME FFS

› BS7910

› ASME PCC-2 repair of pressure

equipment and piping

› Detailed finite element modelling and

non-linear analysis.

Integrity management support

Long-term, short-term or ad-hoc support

can be provided on a flexible basis to suit

your requirements:

› Secondment

› Independent peer reviews/gap analysis

› Client representative

› Shutdown support

› Anomaly management support

› Inspection test plan and work scope

support and review

› PSV review and endorsement

› NII suitability reviews

› Technical integrity advisor g

Pressure Systems

For further details go to

xodusgroup.com

and search for

pressure systems

Our experienced mechanical engineers,

together with our process and control

engineers, electrical engineers and reliability

experts, provide a comprehensive facilities

integrity service to assist our clients

throughout the project lifecycle.

From guiding projects through the critical

early design stages, where developing

optimum arrangements is crucial, through

to providing commissioning support and

troubleshooting during the operational

phase of the project lifecycle, Xodus

engineers and consultants are here to help.

Facilities engineering

› Rotating equipment (operational support

and troubleshooting)

› FEED

› Electrical advice in all areas from

generation through to distribution

› Instrument advice in condition

monitoring, controls and safety systems

e.g. ESD, F&G.

Fabric maintenance

Xodus has experience in carrying out

essential site fabric condition surveys

which provide the basis for our fully costed

recommendations.

Systems obsolescence management

› Producing obsolescence frameworks

› Site systems and equipment surveys

› Obsolescence management system

audit g

Facilities Integrity

For further details go to

xodusgroup.com

and search for

process & facilities

09

Responsible for invaluable contributions

to conceptual studies on platform

modifications for a number of our clients,

Xodus has extensive experience of major

greenfield and brownfield developments;

designing new structures and assessing

existing ones. In order to deliver a feasible

solution, Xodus Group defines the

integrity requirements of new structures

and delivers integrity assessments of

existing assets.

Structural analysis

Using Finite Element Analysis (FEA) we

evaluate structural integrity during design

and operation, e.g. static deformation and

stress concentration factors as well as

non-linear geometric and material analysis

for post-yield behaviour.

Explosion and fire assessment

Xodus Group can determine design

explosion loads and assess the structure

in worst case scenarios. Working to

industry standards, such as the UK

Offshore Operators Association Fire and

Explosion Guidance, we offer full advice

on hazard management; avoidance and

mitigation of explosions; avoidance and

mitigation of fires; detailed design and

assessment guidance.

Using advanced Computational Fluid

Dynamics (CFD) analysis, we determine

the development and spread of explosions

or fire. Non-linear explicit finite element

analysis considers the buckling and

deformation of structures and, in the

design phase, the impact of Strength

Level Blast (SLB) and Ductile Level Blast

(DLB) load cases.

Ageing installations

We evaluate the integrity of ageing

installations to identify structural and

functional modifications that offer

operational life extensions.

Fitness For Service (FFS)

Our advice delivers financially feasible and

structurally sound solutions to tackle:

› Production performance

› Engineering design

› Defect severity

› Fatigue stresses

› System integrity

› Measurement and testing.

Pushover analysis and post-impact

capacity

Using non-linear finite element codes, or

explicit transient analysis, we identify the

loading, weak links and failure modes of

structures and determine the real strength.

We deploy the same techniques to model

ship-ship/ship-installation real time impacts

and determine member failures, load

redistribution and structural integrity g

Structural Integrity

For further details go to

xodusgroup.com

and search for

structural integrity management and

advanced structural analysis

Technical CapabilityIntegrity

www.xodusgroup.com

11

Xodus brings in-depth knowledge

and experience to bear on metallurgy,

materials selection, and corrosion control

and management. In an area where

solutions can be complex, we support our

clients with straightforward, clear advice.

Our expertise in materials and corrosion

covers the entire lifecycle of your assets;

from early concept when we carry

out materials screening, during FEED

with detail corrosion assessments and

specification tailoring, though to EPIC

stages – assuring the quality of materials,

welding and coating. Throughout

operations we offer specialised support

in areas such as corrosion management,

ageing of polymers used in flexible

pipelines and failure investigation.

When an asset approaches end-of-life, we

provide support by reviewing the condition

of the asset and help clients assess life

extension options. We collaborate with

experts in other Xodus disciplines to

deliver integrated, cost effective and

feasible solutions to technical challenges.

Metallurgy and materials selection

› Materials screening at early concept

stage and practical detailed selection at

define/FEED stages that incorporates

supply chain constraints where they

exist

› Strong experience in manufacturing

and fabrication to effectively support

clients during the EPIC stages; from

steelmaking and heat treatment to

cladding, welding and NDT programmes

› Technical support during the operational

life of the asset is one of our core

strengths and our experience helps

clients develop a comprehensive system

for their Integrity programmes

› We have a lifetime experience in

failure analysis that enables us to help

operators find answers to the questions

‘Why did it fail?’ and ‘How do we

prevent another failure?’

Corrosion management

› Development of comprehensive

corrosion control and mitigation

strategies at any stage of an asset life

using industry best practice models and

Key Performance Indicators (KPIs)

› Materials and corrosion experts perform

corrosion parametric studies, inhibitor

selection, and corrosion monitoring

programmes. Working in conjunction

with our production chemists, Xodus

provides robust and mature solutions in

these areas

› Corrosion assessment for existing assets

for both internal and external hazards is

undertaken using in-house and verified

tools as well as industry-wide accepted

tools.

Sour service (H2S) expertise

Our deep understanding of metallurgy and

the threats in H2S containing environments

is based on technical experience as

developers of solutions for sour service,

qualifying materials at laboratories and

inspecting assets as they suffer the effects of

H2S. Xodus can guide you to overcome sour

service challenges, from downhole materials

selection to H2S removal equipment.

ISO 15156/NACE MR0175 can be a

daunting document to navigate. Xodus’

continuous participation in NACE TG299

(Oversight of Maintenance Panel for NACE

MR0175/ISO 15156) gives us an insight into

the standard and strengthens the solutions

we provide to our clients.

Non-metallic materials and materials

selection for flexible risers/pipelines

Xodus Group provides insight through a

deep understanding of the importance of

quality assurance during the manufacture

of non-metallic equipment such as flexible

flowlines and risers. Our competence and

experience allow us to provide practical

advice to clients who need to effectively

manage the threat of polymer ageing g

Materials and Corrosion

Technical CapabilityIntegrity

www.xodusgroup.com

13

The vibration engineering service from

Xodus Group is aimed at preventing

vibration induced failures. We help clients

to meet exacting design requirements

and avoid problems arising, or to solve

any that arise during design, construction,

commissioning and operational phases.

Using a combination of physical

measurement, analysis and modelling tools

to identify vibration and fatigue problems,

our engineers produce robust, engineered

solutions before expensive failures occur.

Vibration risk management

Evaluation, assessment and management

of the risks associated with the vibration of

piping, structures and machinery:

› Design auditing and design review

including machinery rotordynamic

assessment

› Complete plant Vibration Risk

Assessment (VRA) using design stage,

construction stage and commissioning/

operations stage reviews and surveys

› Development of in-house risk

management procedures

› Front end resonance checks and modal

analysis.

Vibration measurement and analysis

Application of state-of-the-art field

measurement techniques:

› Comprehensive multi-channel on-site

and remote data acquisition capability

including measurement of vibration,

strain and dynamic pressure

› Flow related and acoustically induced

vibration investigation

› Pipework support and clamp

assessment, design and manufacture

› Machinery vibration troubleshooting, field

balancing and witness testing

› Machine condition monitoring

› Rotating/reciprocating machinery

vibration measurement and analysis.

Computer Modelling and Analysis

Application of sophisticated analysis

techniques to aid in the solution of complex

field problems:

› Piping and structure stress analysis

› Dynamic and static pipe stress analysis

and code compliance checks to ASME

and NORSOK standards

› Computational Fluid Dynamics (CFD)

simulation and analysis

› Acoustically Induced Vibration (AIV)

simulation and analysis

› Steady-state and transient analysis using

range of software packages, e.g. Ansys/

Ansys CFX, Caesar II, PULS, Solidworks,

Pipenet and OLGA.

Training

Provision of practical, professional training

courses:

› Machinery Vibration Analysis Level I –

compliant with ISO18436-2

› Machinery Vibration Analysis Level II –

compliant with ISO18436-2

› Vibration awareness and basic

troubleshooting

› Introduction to process pipework

vibration g

VibrationEngineering

For further details go to

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and search for

vibration engineering and computational

fluid dynamics analysis

Plant reliability and availability feed

directly into production continuity. Our

vast experience in reliability analysis

and modelling identifies critical areas

that inform your maintenance strategy

development with the aim of improving

plant availability.

› Reliability and availability modelling

› Failure mode, effects and criticality

analysis

› Full lifecycle support in accordance with

BS EN 61511

› SIL determination and validation

› Reliability-centred maintenance and risk-

based inspection

› Production loss accounting and loss root

cause analysis

› Full gap assessment/audit service g

Reliability and Availability

Technical CapabilityIntegrity

www.xodusgroup.com

Proven technical skills combined with

extensive operational experience enables

us to identify and focus on the issues that

are critical to assessing risks and supporting

clients in managing major hazards effectively.

With these resources we have the capability

to deliver robust safety conclusions in tight

timescales to meet corporate, societal and

regulatory expectations.

› Relief and blowdown reviews

› Process safety basic requirement reviews

› HP/LP interface analysis

› HAZOP studies

› Process safety reviews (focused HAZOP

for existing plant operations)

› Cause and effect reviews

› SIL determination studies

› Layers of Protection Analysis (LOPA)

› Development of operating procedures

› Process safety course training

› Process safety audits

› SAFE chart development/registers of

safety related devices

› As-building process safety critical

information g

Process Safety

For further details go to

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and search for

process safety

15

For further details go to

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and search for

experience

Integrity Management Framework

Valiant Petroleum

Integrity Management Plan

Scope:

› To develop a suite of documents

that would provide an asset integrity

management plan

› The purpose of this plan is to facilitate

the safe operation and maintenance of

the Causeway and Fionn developments

in the 211/22a and 211 23d blocks of

the North Sea.

Structural Integrity

BG Egypt

WDDM Offshore Water Injection Study

Scope:

› Identify produced water injection

concepts that provide a long term,

safe and sustainable disposal route for

produced water

› Assess integrity of existing infrastructure

to determine FFP

› Identify and evaluate the feasibility of

the development options

› Engineering definition to support

comparison of options.

Technical Integrity Assurance

Andrew Area Development

BP, North Sea UK Sector

Scope:

› Analysis of critical systems with the

potential for impact on construction

progress on a major construction project

› Validate the suitability of actions taken

to address punch list items identified

with Safe Caledonia flotel

› Review suitability of actions taken

to establish that telescopic gangway

processes are adequate on Safe

Caledonia flotel.

Due Diligence

SASOL Petroleum International

Goldeneye CCS Due Diligence Services

Scope:

› Technical review of FEED

documentation

› Analyses of CAPEX and OPEX estimates

› Environmental data review and analyses.

Materials & Corrosion

ADCO

BAB & ASAB Fields – Integrity

Assessment

Scope:

› Review of subsurface facilities to assure

their fitness-for-purpose and minimise

events that compromise business

continuity.

Approach:

› Materials and corrosion experts led

the project, focusing on downhole

metallurgy and corrosion management

› Production chemistry and production

technology specialists collaborated with

metallurgy and corrosion experts

› Well integrity threats were identified and

ranked, and mitigation plans

developed.

Outcome:

› Practical recommendations for securing

operations and minimsing events that

compromise business continuity.

Subsea

Shell, UK North Sea

Pierce Life Extension Project -

Conceptual Engineering Study

Scope:

› Provide specialists in multiple

disciplines – subsea engineering, flexible

risers, pipelines, materials, corrosion,

valves and structures.

› Conduct the study in line with NORSOK

U-009 ‘Life Extension for Subsea

Systems’.

Outcome:

› An action plan to extend the life of the

field from an original 15 years design

life to an additional 17 years allowing

production to continue beyond 2030

› A study of the life extension of the

Pierce subsea production system.

Pipelines

Noble Energy Ltd

Tamar Integrity Management

Scope:

› Achieving operational readiness

› A comprehensive Asset Integrity

Management programme for five or

six production wells tied-back to a

fixed processing platform, as well as

an export pipeline to either shore or

another platform.

Vibration

BP

UK Offshore Assets – Vibration Risk

Management Services

Scope:

› Definition of risk management strategy

› Ongoing implementation of risk

management services including:

− EI AVIFF Guidelines assessment

− Full baseline VRA surveys

− Remedial measures and anomaly

tracking support

− Annual review

− Ad-hoc troubleshooting g

Project Experience

10135Design by www.artech.co.ukOct 2013

1An Xodus Group proprietary product. HYSYS® is a registered trademark of Aspen Technology, Inc.

OLGA® is a registered trademark of SPT Group.

PIPESIM® is a registered trademark of Schlumberger Limited.

Multiflash® is a registered trademark of Infochem Computer Services.

GAP® and PROSPER® are registered trademarks of Petroleum Experts Ltd.

TapRooT® is a registered trademark of System Improvements, Inc.

www.xodusgroup.com

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