www.xodusgroup.com

Operators and investors with interests in gas fields have demanding requirements to fulfil. Some are seeking to obtain reserve certification to satisfy regulatory or financial requirements, others are looking for creative solutions for stranded gas or require a Competent Person’s Report (CPR) or a Field Development Plan (FDP). Key to all activities associated with buying, selling and operating gas fields is a thorough understanding of the technical possibilities, market opportunities and financial constraints of each field.

CapabilitiesXodus’ professionals combine subsurface and engineering expertise with commercial awareness and regulatory knowledge

to give clients complete support at any stage of the acquisition, operation or divestment cycle.

› Advice for mergers and acquisitions › Independent asset valuations to support

project finance (reserve based landing) › Reserve audits and certification › CPR.

Advisory servicesWe offer business support for technical projects, risk management, valuation advice and regulatory compliance. What makes Xodus unique in the industry is the combination of our in-depth knowledge of gas markets with our broad range of engineering capabilities. Together they allow

us to rapidly assess and quantify innovative gas solutions for clients.

Field developmentXodus’ support covers conceptual gas field development feasibility studies through to detailed FDPs. Our experts are adept in providing creative solutions for challenges such as complex clastic and fractured carbonate reservoirs. With multiple capabilities in-house, we evaluate options in terms of capex, opex, timescale, economics and risk, to guide clients to the best plan.

› Appraisals › Reservoir modelling › Feasibility studies › Detailed field development planning.

Consultancy servicesWe evaluate gas fields worldwide, bringing our technical expertise to bear on questions of reservoir connectivity, productivity and hydrocarbon characteristics. Our experts can go beyond the usual investigative studies to full operational support hands-on involvement that helps to bring crucial information to the fore.

› Productivity rate investigations › Fluid characterisation › Dynamic simulation › Well test design and interpretation › Operations support during drilling and

well testing › Production forecasting and enhancement.

Technical Expertise for Gas Field DevelopmentXodus helps clients worldwide to develop, operate and trade gas assets.We provide confidence in the strategic approach and in the economic viability of each field.

Expert advice that focuses on your business goals

In-depth knowledge of gas markets worldwide

Cross discipline integration that results in

rapid assessment of innovative solutions

11021 May 2015

For more information contact:Alistair Porter . Regional Managing Director, London / Oslo . alistair.porter@xodusgroup.com . +44 207 634 9909Richmond Leeb . General Manager, Lagos . richmond.leeb@xodusgroup.com . +234 1 462 3901

www.xodusgroup.com

Examples of our experienceWell A1

Well A2

Well A3

GAS EFFECT

Gas reservoir identification – gas presence highlighted by bright amplitudes.

Detailed dynamic simulation model for a multi-stage hydraulically fractured horizontal well.

3D reservoir modelling for field development.

Advisory services › Worldwide: 10 CPRs delivered in 12

months (May 2014 – April 2015 inc.) › Several Dutch and UK operators: reserve

certification services.

Field development › Cameroon: Xodus supported the appraisal

of a set of offshore gas condensate discoveries. We created reservoir models, defined uncertainty ranges and identified appraisal well locations to reduce subsurface uncertainty to levels required for the final investment decision

› Kurdistan: We defined development strategies to sustainably double existing production and developed models to justify the development of discovered and prospective gas resources in parallel with existing oil development

› Nigeria: As part of a FDP, a gas utilisation scoping study was executed to end flaring. Pipeline export was selected after a careful review of all options; small scale Liquefied Natural Gas (LNG), gas-to-liquids to Compressed Natural Gas (CNG) and gas-to-power.

Consultancy › North Sea, Dutch sector: Xodus

carried out an investigation of possible connectivity between shallow gas fields using a regional dynamic model. We provided history matching of producing fields, and a sensitivity study of influencing parameters on a pressure response of neighbouring fields. Our client managed to progress the subsurface studies and pursue further development

› North Sea, UK sector: Our client needed a better understanding of a tight gas-condensate chalk reservoir (HP / HT) due to insufficient results obtained during initial well test activities – notably, low hydrocarbon rates in clean-up phases raising uncertainties over fluid type (volatile oil or heavy gas condensate) and precise reservoir pressure. Xodus assessed the commercial viability of the field, with our personnel providing full operational support during drilling and well testing activities. We delivered crucial information regarding the reservoir’s true productivity, long-term field performance, hydrocarbon fluid characteristics and reservoir pressure as a result of our hands-on approach. We advised on optimal production enhancement techniques including the design of a multi-stage fracked horizontal well in a high cost environment (HP / HT).